Kyushu University Academic Staff Educational and Research Activities Database
List of Papers
HIDEO WATANABE Last modified date:2019.01.21

Associate Professor / Advanced Energy Engineering Science, High Energy Material Science / Division of Nuclear Fusion Dynamics / Research Institute for Applied Mechanics

1. Y. Hishinuma, M. Tanaka, T. Tanaka, K. Matsuda, Hideo Watanabe, T. Muroga, Microstructure and peeling behavior of MOCVD processed oxide insulator coating before and after ion beam irradiation, Nuclear Materials and Energy, 10.1016/j.nme.2018.06.001, 16, 123-127, 2018.08, The mechanical durability and soundness of the several oxide coating materials used as the electrical insulator and tritium permeation barrier are important design parameters on an advanced liquid breeding blanket system. We tried to investigate the adhesion strength evaluation due to the peeling behavior on the MOCVD processed multilayered oxide coating (Er2O3/Y2O3) on the stainless steel (SUS) substrate before and after Cu2+ ion beam irradiation using the nano-scratch tester. The adhesion strength of the coating material was able to estimate easily from the scratch trace and scratch stress, and the nano-scratch test was suitable method to evaluate the mechanical durability and soundness. After the Cu2+ ion beam irradiation, the adhesion strength was decreased with increasing the displacement per atom (dpa). The adhesion strength degradation by the Cu2+ ion beam irradiation was caused by the embrittlement of the thicker and amorphous Fe-(Y)-O interlayer formation between Y2O3 buffer layer and SUS substrate based on the displacement damage dose effect..
2. Hideo Watanabe, Katsuhito Takahashi, Kazufumi Yasunaga, Yun Wang, Yasuhisa Aono, Yusaku Maruno, Kenichi Hashizume, Effects of an alloying element on a c-component loop formation and precipitate resolution in Zr alloys during ion irradiation, Journal of Nuclear Science and Technology, 10.1080/00223131.2018.1486244, 1-13, 2018.07, It is important to clarify the mechanisms of the dislocation loop formation, dissolution of precipitates to understand the degradation behavior of the fuel cladding tubes in light water reactors (LWR) under neutron irradiation. In this study, 3.2 MeV Ni ion irradiation was carried out at 400°C on Zircaloy-2 and two types of model alloys with and without Fe (Zr-1.5Sn-0.3Fe and Zr-1.5Sn). To understand the effects of hydrogen, 60 and 300 ppm pre-injected Zircaloy-2 samples were also irradiated. The microstructure was observed with a conventional transmission electron microscopy. Additionally, the dissolution of precipitates and the enrichment of the alloying element due to irradiation were analyzed using a spherical aberration (Cs)-corrected high-resolution analytical electron microscope. After ion irradiation at 400°C, the dissolution of Fe-enriched precipitates and the c-component dislocation loops were observed in the region of peak ion damage. Observations by STEM-EDS showed that Fe atoms were enriched in the c-component dislocation loops. On the contrary, the c-component dislocation loops were detected in Fe-containing alloys (Zircaloy-2 and Zr-1.5Sn-0.3Fe alloy) but were not in the Zr-1.5Sn alloy. These results indicate that the dissolution of Fe-enriched precipitates and the enhanced formation of c-component dislocation loops are essential for the degradation of LWR fuel cladding under irradiation..
3. Y. Matsukawa, S. Kitayama, K. Murakami, Y. Shinohara, K. Yoshida, H. Maeno, H. L. Yang, T. Toyama, Kazuhiro Yasuda, Hideo Watanabe, A. Kimura, H. Muta, S. Yamanaka, Y. F. Li, Y. Satoh, S. Kano, H. Abe, Reassessment of oxidation-induced amorphization and dissolution of Nb precipitates in Zr−Nb nuclear fuel cladding tubes, Acta Materialia, 10.1016/j.actamat.2017.01.032, 127, 153-164, 2017.04, The surface oxide film of a Zr−2.5Nb alloy subjected to long term corrosion at 633 K in simulated primary coolant of pressurized water reactors has been analyzed. The primary concerns were whether Nb precipitates exhibit amorphization upon oxidation, and whether they dissolve into the matrix, as suggested by previous studies. Their behavior is of particular interest, from the viewpoint of engineering, as the mechanism of improving corrosion resistance of Zr fuel cladding by Nb addition, and from the viewpoint of basic materials science, as the critical condition of solid-state amorphization. If amorphization and dissolution proceed simultaneously, it would follow that amorphization occurs at conditions where both O and Nb atoms are mobile; under such conditions diffusion-induced amorphization has never been observed. It was found that the Nb precipitates exhibited amorphization without dissolution. Some of the inconsistencies among the previous studies were found to be artifacts of materials characterization methods. The final configuration of precipitates was amorphous Nb2O5, which is distinct from the other Nb oxides in terms of its dielectric nature with a wide band gap. The matrix initially contained a large amount of Nb greater than the solubility. Although the excess Nb atoms did not precipitate by thermal aging alone, oxidation was found to enhance their precipitation at this temperature. It appears that amorphization can occur even when the motion of atoms is not frozen-in..
4. Yuta Aihara, Yasuhiro Kamada, Takeshi Murakami, Satoru Kobayashi, Hideo Watanabe, Correlation between magnetic hysteresis properties & vickers hardness in cladded reactor pressure vessel steel, Nippon Kinzoku Gakkaishi/Journal of the Japan Institute of Metals, 10.2320/jinstmet.JAW201702, 81, 10, 475-479, 2017.01, We investigated the microstructure, magnetic hysteresis properties, and micro Vickers hardness of nuclear reactor pressure vessel(RPV) steel cladded with austenitic stainless steel. Characterization of the crystalline structure by electron backscatter diffraction revealed the existence of a delta ferrite phase in the austenitic cladding, and the formation of coarse and fine grain microstructures in the heat affected zone(HAZ)of the RPV steel. The block specimen was cut into small pieces and magnetic hysteresis loops were measured with a vibrating sample magnetometer. Although the saturation magnetization of the RPV steel was constant, the coercivity in the HAZ region decreased gradually as a function of distance from the weld fusion boundary. A linear correlation was confirmed between the coercivity and hardness. This study demonstrates the feasibility of a magnetic evaluation of hardness and microstructures in RPV steel..
5. Y. Oya, H. Fujita, C. Hu, Y. Uemura, S. Sakurada, K. Yuyama, X. Li, Y. Hatano, N. Yoshida, Hideo Watanabe, Y. Nobuta, Y. Yamauchi, M. Tokitani, S. Masuzaki, T. Chikada, Effect of impurity deposition layer formation on D retention in LHD plasma exposed W, Nuclear Materials and Energy, 10.1016/j.nme.2016.07.005, 9, 84-88, 2016.12, Effect of carbon based mixed-material deposition layer formation on hydrogen isotope retention was studied. The tungsten (W) samples were placed at four different positions, namely PI (sputtering erosion dominated area), DP (deposition dominated area), HL (higher heat load area), and ER (erosion dominated area) during 2013 plasma experimental campaign in Large Helical Device (LHD) at National Institute for Fusion Science (NIFS), Japan and were exposed to ∼ 4000 shots of hydrogen plasma in a 2013 plasma experimental campaign. Most of the sample surface except for ER was covered by a mixed-material deposition layer formed by plasma experimental campaign, which consisted of carbon, but some metal impurities were contained. For ER sample, He bubbles were formed due to long term He discharge cleaning and He plasma experiments during the plasma experimental campaign. The additional 1�keV D2+ implantation was performed to evaluated the D retention enhancement by plasma exposure. It was found that both of H and D retentions were clearly increased. In particular, the H retention was controlled by the thickness of the carbon-dominated mixed-material deposition layer, indicating most of the H was trapped by this mixed-material deposition layer. It is concluded that the accumulation of low-Z mixed-material layer on the surface of the first wall is one of key issues for the determination of hydrogen isotope retention in first wall..
6. Hideo Watanabe, K. Yamasaki, A. Higashijima, H. Taguma, T. Nagasaka, T. Muroga, Microstructural changes of Y-doped V-4Cr-4Ti alloys after ion and neutron irradiation, Nuclear Materials and Energy, 10.1016/j.nme.2016.06.001, 9, 447-450, 2016.12, High-purity Y-doped V-4Cr-4Ti alloys (0.1–0.2 wt. % Y), manufactured by the National Institute for Fusion Science (NIFS), were used for this study. Heavy-ion and fission-neutron irradiation was carried out at temperatures 673–873 K. During the ion irradiation at 873 K, the microstructure was controlled by the formation of Ti(C,O,N) precipitates lying on the (100) plane. Y addition effectively suppressed the growth of Ti(C,O,N) precipitates, especially at lower dose irradiation to up to 4 dpa. However, at higher dose levels (12.0 dpa), the number density was almost at the same levels irrespective of the presence of Y. After neutron irradiation at 873 K, fine titanium oxides were also observed in all V alloys. However, smaller oxide sizes were observed in the Y-doped samples under the same irradiation conditions. The detailed analysis of EDS showed that the center of the Ti(C,O,N) precipitates was mainly enriched by nitrogen. The results showed that the contribution of not only oxygen atoms picked up from the irradiation environment but also nitrogen atoms is essential to understand the microstructural evolution of V-4Cr-4Ti-Y alloys..
7. Y. Matsukawa, T. Takeuchi, Y. Kakubo, T. Suzudo, H. Watanabe, H. Abe, T. Toyama, Y. Nagai, The twe-step nucleation of G-phase in ferrite, Acta Materialia,, 116(2016), 104-113, 2016.06.
8. S. Entani, M. Mizuguchi, H. Watanabe, Liybov Yu. Antipina, Effective fluorination of single-layer graphene by high-energy ion irradiation through a LiF overlayer, ROYAL SOCIETY OF CHEMISTRY, 10.1039/c6ra09631j, RSC Adv. 2016. 6, 68525-68529, 2016.06.
9. H. Watanabe, S. Arase, T. Yamamoto, P. Wells, T. Onishi, G.R. Odette, Hardening and microstructural evolution of A533b steels irradiated with Fe ions and electrons, Journal of Nuclear Materials,, 471(2016), 243-250, 2016.01.
10. V. Kh. Alimov, Y. Hatano, N. Yoshida, H. Watanabe, M. Oyaidzu, M. Tokitani, T. Hayashi, Surface modification and sputtering erosion of reduced activation ferritic martensitic steel F82H exposed to low-energy high flux deuterium plasma, Nuclear Materials and Energy,, 7, (2016), 25-32, 2016.01.
11. H. Kurishita, M. Hatakeyama, M. Nari, S. Matsuo, T. Shikama, N. Ohno, H. Watanabe, K. Tokunaga, T. Hino, Current Activities in the Interface Joint Researcih at Tohoku University- Advanced Education of Radiation Effects on Fusion Materials, Plasma and Fusion Research,, 9, 2016, 440-340, 2015.09.
12. T. Miyazawa, T. Nagasaka, R. Kasada, Y. Hishinuma, T. Muroga, H. Watanabe, T. Yamamoto, S. Nogami, M. Hatakeyama, Evoluation of Irradiation Hardening of Ion-irradiated V-4Cr-4Ti-0.15Y Alloys by Nanoidentatiion Techniques, Journal of Nuclear Materials,, 455, 2014, 440-444, 2015.08.
13. Y. Oya, X. Li, K. Yuyama, L. Zhang, S. Kondo, T . Hinoki, Y. Hatano, H. Watanabe, N. Yoshida, T. Chikada, Thermal desorpiton behavior of deuterium for 6MeV Fe ion irradiated W with various damge concentrations, Journal of Nuclear Materials,, 461, 2015, 336-340, 2015.03.
14. M. Miyamoto, H. Takaoka, K. Ono, S. Morito, N. Yoshida, H. Watanabe, A. Sagara, Crystal orientation dependence of surface modification in molybdenum mirror irradiated with helium ions, Journal of Nuclear Materials,, 455, 2014, 297-300, 2014.07.
15. H. Watanabe, N. Futagami, S. Naitou, N. Yoshida, Microsturucture and Thermal Desorption of Deterium in Heavy Ion Irradiated Pure Tungsten, Journal of Nuclear Materials, 10.1016/j.jnucmat.2014.03.060, 455, 2014, 51-55, 2014.04.
16. H. Kurishita, S. Matsuo, H. Arakawa, T. Sakamoto, S. Kobayashi, K. Nakai, H. Okano, Hideo Watanabe, Naoaki Yoshida, Y. Torikai, Y. Hatano, T. Takida, M. Kato, A. Ikegaya, Y.Ueda, M. Hatakeyama, T. Shikama, Current status of nanostructured tungsten-based materials development, Physica Scripta, 10.1088/0031-8949/2014/T159/014032, T159(2014), 014032(7PP), 1-7, 2014.04.
17. Hiroaki Kurishita, Masahiko Hatakeyama, Minoru Narui, Satoru Matsuno, Tatsuo Shikama, Kohei Tada, Noriyasu Ohno, Takao Takeuchi, Yuji Hatano, Masaki Nishiura, Hideo Watanabe, KAZUTOSHI TOKUNAGA, Tomoaki Hino, Yoshino Ueda, Takeo Muroga, Akio Sagara, Osamu Kaneko, Current Activities in the Interactive Joint Research at Tohoku University – Advanced Evaluation of Radiation Effects on Fusion Materials - *), Plasma and Fusion Research: Regular Articles, 10.1585/pfr.9.3405136, 9, 3405136(2014), 3405136-1-3405136-4, 2014.03.
18. Y. Oya, S. Masuzaki, M. Tokitani, M. sato, H. Uchimura, Naoaki Yoshida, HIDEO WATANABE, Y. Yamaguchi, T. Hino, M. Miyamoto, Y. Hatano, K. Okuno, Comparison of Hydrogen Isotope Retention for Tungsten Probe in LHD Vacuum Vessel during the Experimental Campaigns in 2011 and 2012, Fusion Engineering and Design, 10.1016/j.fusengdes.2013.12.018, 89, (2014), 1091-1095, In Press, 2014.01.
19. KENJI MATSUMOTO, HIDEO WATANABE, Naoaki Yoshida, A TEM Investigation of Crack Formation Mechanism on Chrome-Molybdenum Steel Tested under Real Driving Conditions, Society of Tribologists and Lubrication Engineers, 10.1080/10402004.2013.783660, Tribology Transactions, 56, Issues 6, 897-907, 2013.08.
20. Takuya Nagasaka, Yoshimitsu Hishinuma, Takeo Muroga, HIDEO WATANABE, Hideo Sakasegawa, Hiroyasu Tanigawa, Masami Ando, Analysis on precipitation behavior of reduced activationferritic/martensitic steels with extraction residue tests, Fusion Engineering and Design, 10.1016/j.fusengdes.2013.037, 88,Issues9-10, 2013, 2565-2568, 2013.06.
21. Takuya Nagasaka, Takeo Muroga, WATANABE HIDEO, Takeshi Miyazawa, Masanori Yamazaki, Kenji Shinozaki, Impact property of low-activation vanadium alloy after laser welding and heavy neutron irradiation, Journal of Nuclear Materials, 10.1016/j.jnucmat.2013.05.046, 442,Issues1-3,Supplement 1, 2013, s364-s369, 2013.05.
22. Y.Kamada, J.N.Mohapatra, H. Kikuchi, S. Kobayashi, T. Murakami, HIDEO WATANABE, Neutron Irradiation Effects on Mechanical and Magnetic Properties of Pre-deformed Iron-based Model Alloys, Journal of the Magnetics Society of Japan , Vol.37, No.3-2, 2013, 147-150, 2013.05.
23. Y. Hatano, M. Shimada, T. Otsuka, Y. Oya, V.Kh. Alimov, M. Hara, J. Shi, M. Kobayashi, T. Oda, G. Cao, K. Okuno, T. Tanaka, K. Sugiyama, J. Roth, B. Tyburska-P¨ uschel, J. Dorner, Yoshida Naoaki, N. Futagami, WATANABE HIDEO, M. Hatakeyama, Deuterium trapping at defects created with neutron and ion irradiations in tungsten, NUCLEAR FUSION , 10.1088/0029-5515/53/7/073006, 53,No.7, 2013, 073006-1-073006-7, 2013.05.
24. Tomonori Tokunaga, HIDEO WATANABE, Naoaki Yoshida, Takuya Nagasaka, Ryuta Kasada, Akihiko Kimura, Masayuki Tokitani, Masatoshi Mitsuhara, Hideharu Nakashima, Suguru Masuzaki, Takeshi Takabatake, Nobuyoshi Kuroki, Koichiro Ezato, Satoshi Suzuki, Masato Akiba, Manufacture of Vacuum Plasma Spraying Tungsten with Homogenous Texture on Reduced Activation Ferritic Steel at about 873K, Plasma and Fusion Research: Regular Articles, 10.1585/prf.8.1405111, Volume 8, 1405111(2013), 1405111-1-1405111-6, 2013.05.
25. Yasuhisa Oya, Suguru Masuzaki, Masayuki Tokitani, Naoaki Yoshida, HIDEO WATANABE, Yuji Yamauchi, Tomoaki Hino, Mitsutaka Miyamoto, Yuji Hatano, Kenji Okuno, Enhancement of hydrogen isotope retention capacity for the impurity deposited tungsten by long-term plasma exposure in LHD, Fusion Engineering and Design, 88,Issues9-10, 2013, 1699-1703, 2013.04.
26. WATANABE HIDEO, A. Hiragane, S. Shin, Yoshida Naoaki, Y. Kamada, Effect of stress on radiation-induced hardening of A533B and Fe–Mn model alloys, Journal of Nuclear Materials, 10.1016/j.jnucmat.2013.04.029, 442,Issues1-3,Supplement 1, 2013, s776-s781, 2013.04.
27. Q.Xu, K.Sato, X.Z.Cao, P.Zhang, bB.Y.Wang, T.Yoshiie, HIDEO WATANABE, Naoaki Yoshida, Interactions of deuterium with vacancies induced by ion irradiation in W, Nuclear Instruments and Methods in Physics Research B:Beam Interactions with Materials and Atoms, 315, 2013, 146-148, 2013.04.
28. Muroga Takeo, Nagasaka Takuya, P.F. Zheng, Y. F. Li, WATANABE HIDEO, Dislocation evolution during thermal creep deformation in V-4Cr-4Ti with various thermal and mechanical treatments, Journal of Nuclear Materials, 10.1016/j.jnucmat.2013.03.061, 442, 2013, s354-s359, 2013.03.
29. WATANABE HIDEO, Tokunaga Tomonori, Yoshida Naoaki, Nagasaka Takuya, Muroga Takeo, Investigation on the microstructure of W-coated low-activation alloy V-4Cr-4Ti , Journal of Nuclear Materials, 10.1016/j.jnucmat.2013.02.051, 442, 2013, s292-s296, 2013.03, V系低放射性構造材料(NIFS-HEAT2)にWをロウ付け並びにVPS(Vacumme Plasma Spray)法にて接合し、界面の電子顕微鏡観察を実施した。界面近傍ではV中にチタン析出物が
30. Yasuhisa Oya, Suguru Masuzaki, Tetsuo Fujishima, Masayuki Tokitani, Yoshida Naoaki, WATANABE HIDEO, Yuji Hamauchi, Tomoaki Hino, Mitsutaka Miyamoto, Yuji Hatano, Kenji Okuno, Enhaancement of hydrogen isotope retention in tungsten exposed to LHD plasmas, Journal of Nuclear Materials, 10.1016/j.jnucmat.2013.01.231, 438, 2013, s1055-s1058, 2013.01.
31. Yasuhisa Oya, Masashi Shimada, Tomonori tokunaga, WATANABE HIDEO, Yoshida Naoaki, Yuji Hatano, Ryuta Kasada, Takuya Nagasaka, Akihiko Kimura, Kenji Okuno, Behavior of deuterium retention and surface morphology for VPS-W/F82H, Journal of Nuclear Materials, 10.1016/j.jnucmat.2013.01.321, 442, 2013, s242-s245, 2013.01.
32. T.Tokunaga, WATANABE HIDEO, Yoshida Naoaki, T.Nagasaka, R.Kasada, Y.Lee, A.Kimura, M.Tokitani, T.Hinoki, H.Nakasima, S.Masuzaki, T.Takabatake, N.Kuroki, K.Ezato, S.Suzuki, M.Akiba, Development of high-grade VPS-tungsten coating on F82H reduced activation steel , Journal of Nuclear Materials, 10.1016/j.jnucmat.2012.11.004, 442, 2013, s287-s291, 2012.12.
33. Yasuhiro Kamada, WATANABE HIDEO, Seiji Mitani, Jitendra Narayana Mohapatra, Hiroaki Kikuchi, Satoru Kobayashi, Masaki Muzuguchi, Koki Takanashi, Ion-irradiation enhancement of materials degradation in Fe–Cr single crystals detected by magnetic technique, Journal of Nuclear Materials, 10.1016/j.jnucmat.2012.11.042, 442, 2013, s861-s864, 2012.12.
34. N. Ohno, Y. Hirahata, M. Yamagiwa, S. Kajita, M. Takagi, Yoshida Naoaki, Reiko Yoshihara, Tomonori Tokunaga, M. Tokitani, Influence of crystal orientation on damages of tungsten exposed to helium plasma, Journal of Nuclear Materials, accepted for publication, 2012.12.
35. WATANABE HIDEO, A. Hiragane, S. Shin, Yoshida Naoaki, Kamada Yasuhiro, The effects of stress on radiation-induced hardening of A533B and Fe-Mn alloys , Journal of Nuclear Materials, accepted for publication, 2012.12.
36. Tomonori Tokunaga, WATANABE HIDEO, Yoshida Naoaki, T. Nagasaka, R. Kasada, A. Kimura, M. Tokitani, M. Mitsuhara, H. Nakashima, S. Masuzaki, T. Takabatake, N. Kuroki, K. Ezato, S. Suzuk, M. Akiba, Manufacture of vacuum plasma sprayed tungsten with homogenous texture on metallic substrate at low temperatures, Plasma and Fusion Research, submitted, 2012.12.
37. Influence of Heat Treatment after Ion Irradiation on Joint Strength of Copper and Tungsten.
38. HIDEO WATANABE, S.Masaki, S.Masubuchi, Naoaki Yoshida, K.Dohi, Effects of Mn addition on dislocation loop formation in A533B and model alloys, Jouenal of Nuclear Materials, 10.1016/j.jnucmat.2012.08.029, 439, 2013, 268-275, 2012.09.
39. WATANABE HIDEO, M.Masaki, S.Masubuchi, Yoshida Naoaki, Kamada Yasuhiro, Effects of Mn addition on Dislocation Loop Formation in A533B and Model Alloys Journal of Nuclear Materials, Journal of Nuclear Materials, 439, 268-275, 2012.08, 実用材料であるA533B並びにFeモデル合金を用いてMn添加の影響が転位ループ(マトリクス欠陥)の数密度増加に起因するものであることを、電子線照射並びにイオン照射実験から秋化にした。.
40. Microstructure Changes of Pure Copper after Irradiation under Periodic Temperature Variation.
41. Masashi Shimada, Y. Hatano, Y. Oya, T. Oda, M. Hara, G. Cao, M. Kobayashi, M. Sokolov, HIDEO WATANABE, B. Tyburska-Puschel, Y. Ueda, P. Calderoni, K. Okuno, Overview of the US–Japan collaborative investigation on hydrogen isotope retention in neutron-irradiated and ion-damaged tungsten
, Fusion Engineering and Design, 10.1016/j.fusengdes.2012.02.103, 87, 2012, 1166-1170, 2012.04.
42. S.K. Sharma, hideki zushi, Naoaki Yoshida, HIDEO WATANABE, M. Osakabe, Y. Takeri, M. Hasegawa, T. Tanabe, KAZUTOSHI TOKUNAGA, kazuaki hanada, Hiroshi Idei, M. Sakamoto, Kazuo Nakamura, Akihide Fujisawa, S. Tashima, Analysis of PWI footprint traces and material damage on the first walls of the spherical tokamak QUEST, Fusion Engineering and Design, 10.1016/j.fusengdes.2011.10.001, 87, 2012, 77-86, 2011.11.
43. Kazuhito Ohsawa, Keisuke Eguchi, Hideo Watanabe, Masataka Yamaguchi and Masatoshi Yagi, Configuration and binding energy of multiple hydrogen atoms trapped in movovacancy in bcc transition metals, PHYSICAL REVIEW B, 10.1103/PhysRevB.85.094102, 85, 2012, 094102-1~8, 2011.11.
44. Takuya Nagasaka, Yoshimitsu Hishinuma, Takeo Muroga, Yanfen Li, HIDEO WATANABE, Hiroyasu Tanigawa, Hideo Sakasegawa, Masami Ando, Extraction residue analysis on F82H-BA07 heat and other reduced activation ferritic/martensitic steels , Fusion Engineering and Design, 10.1016/j.fusengdes.2010.11.006, 86, 2011, 2581-2584, 2011.10.
45. Yasuhisa Oya, Masashi Shimada, Makoto Kobayashi, Takuji Lda, Masanori Hara, Hideo Watanabe, Yuji Hatano, Pattorick Calderoni and Kenji Okuno, Comparison of deuterium retention for ion-irradiated and neutron-irradeated tungsten, PHYSICA SCRIPTA, 10.1088/0031-8949/2011/T145/014050, T145, 014050(5PP), 2011.05.
46. Yasuhiro Kamada, Hideo Watanabe, Seiji Mitani, Jun-ichi Echigoya, Hiroaki Kikuchi, Satoru Kobayashi and Koki Takanashi , Magnetic Properties of Ion Irradiated Epitaxial Fe Films, Joural of Physics : Conference Series, Vol. 266(2011) pp.012035/1-5, Vol.50, No.9 pp.2134to2138, 2011.04.
47. Nagasaka Takuya, Muroga Takeo, WATANABE HIDEO, Kasada Ryota, Kimura Akihiko, Mechanial properties of V-4Cr-4Ti alloy after first-wall coating with tungsten, Journal of Nuclear Materials, 306-309, 417 , 2011.04.
48. T.Muroga,T.Nagasaka,H.Watanabe,M.Yamazaki, The effect of final heat treatment temperature on radiation response of V-4Cr-4Ti, Journal of Nuclear Materials, 2011.04.
49. WATANABE HIDEO, Yoshida Naoaki, Nagasaka Takuya, Muroga Takeo, The microstructure and hardness changes of neutron irradiated weld joint of vanadium alloy, Journal of Nuclear Materials, 2011.04.
50. Takuya Nagasaka, Yoshimitsu Hishinuma, Takeo Muroga, Yanfen Li, HIDEO WATANABE, Hiroyasu Tanigawa, Hideo Sakasegawa, Masami Ando, Extraction residue analysis on F82H-BA07 heat and other reduced activation
ferritic/martensitic steels, Fusion Engineering and Design, 10.1016/j.fusengdes.2010.11.006, 86, 2011, 2581-2584, 2010.12.
51. Hideo WATANABE,Naoaki YOSHIDA, Environmntal EffectS on Titanium Oxide Formation in V-4Cr-4Ti Alloys, Reports of Research Institute for Applied Mechanics,Kyushu University, 139, 81-84, 2010.09.
52. T.Muroga,T.Nagasaka,J.M.Chen,Y.F.Li,H.Watanabe, Microstructure of creep-deformed V-4C-4Ti strengthened by precipitation and cold rollng, Journal of Nuclear Materials, 606-609, 386-388 606-609, 2009.04.
53. Y.Sumino, H.Watanabe, N.Yoshida, The microstructural evolution of precipitate strengthened copper alloys by varying temperature irradiation, Journal of Nuclear Materials, 386-388 654-657, 2009.04.
54. H.Watanabe, A.Higashijima, N.Yoshida, T.Nagasaka,T.Muroga, The microstructure of laser welded Y doped V-4C-4Ti alloys after ion irradiation, Journal of Nuclear Materials, 386-388 598-601, 2009.04.
55. Yasuhiro Kamada, Hideo Watanabe, Seiji Mitani, Jun-ichi Echigoya, Hiroaki Kikuchi, Satoru Kobayashi Naoaki Yoshida and Koki Takanashi , Effects of Room Temperaturre Heavy-Ion Irradiation on Magnetic and Electrical Properties of a Single Crystalline Iron Thin Film
, Materials Transactions, Vol.50, No.9 pp.2134to2138, 2009.04.
56. Q. Xu, T. Yoshiie, H. Watanabe, and N. Yoshida, Effects of oversized element Sn on diffusion of Intersititial cluster in Ni irradiated by ions and neutrons, Journal of Nuclear Materials, 367-370(2007)361-367, 2007.05.
57. H. Watanabe, K, Yamazaki, A. Higashizima, N. Yoshida, T. Nagasaka and T. Muroga, The microstructure of laser welded V-4Cr-4Ti alloy after neutron irradiation, Journal of Nuclear Materials, 367-370(2007)794-799, 2007.05.
58. T. Nagasaka,T. Muroga, K. Fukumoto, H. Watanabe, M. L. Grossbeck, J. Chen, Development of fabrication technology for low activation vanadium alloys as fusion blanket structural materials, Nulc. Fusion , Vol.5.618-625, 2006.05.
59. Y. Sumino, H. Watanabe, N. Yoshida, and T,Muroga, The Microstructure of Pure Copper After Stepwise Change of Irradiation Temperature, Material Scicence Forum, 475-479, 1479-1482, Vols. 475-479(2005)pp.1479-1482, 2005.10.
60. H. Watanabe, M. Nagamine, K. Yamasaki, N. Yoshida, Nam-JIn Heo, T. Nagasaka and T,Muroga, The Microstructure of Laser Welded V-4Cr-4Ti Alloys After Ion Irradiation, Material Scicence Forum, 475-479, 1491-1495, Vols. 475-479(2005)pp.1491-1496, 2005.10.
61. Effects of Ion Irradiation on Laser Welded V-4Cr-4Ti Alloy(NIFS-HEAT2).
62. Recent Progress of Varying Temperature Irradiation Experiments on Microstructure Development in Austenitic Stainless Steels.
63. M. Hatakeyama, H. Watanabe, T. Muroga and N. Yoshida, The precipitation behavior of ion irradiated V-4Vr-4Ti alloys at various oxygen and nitrogen levels, Journal of Nuclear Materials, 10.1016/j.jnucmat.2004.04.076, 329, 420-424, 329-333(2004)420-424, 2004.01.
64. Ham-Jin HEO, T. Nagasaka, T. Muroga, A. Nismura, K. Shinozaki, H. Watanabe, Mechanical Properites of Laser Weldment of V-4Cr-4Ti Alloy, Fusion Science and Technology, 44, 2, 470-474, Vol.44.470-474, 2003.09.
65. H. Watanabe, D. J. Edwards, Y. Aono, N. Yoshida, Microstructure of Neutron Irradiated SS316L/DS-Cu Joint, Journal of Nuclear Materials, 10.1016/S0022-3115(02)01205-9, 307, 335-338, Vol.307-311.335-338, 2002.12.
66. H. Watanabe, T. Muroga, N. Yoshida, Effects of Temperature Variation Change on Vadadium Alloys Irradiated in HFIR, Journal of Nuclear Materials, Vol.307-311.403-407, 2002.12.
67. H. Watanabe, M. Suda, T. Muroga, N. Yoshida, Oxide Formation of a Purified V-4Cr-4Ti Alloys During Heat Treatment and Ion Irradiation, Journal of Nuclear Materials, 10.1016/S0022-3115(02)01097-8, 307, 408-411, Vol.307-311.408-411, 2002.12.
68. H. Watanabe, N. Yoshida, ODS銅/ステンレス接合材料の中性子照射による組織変化, まてりあ、日本金属学会, 第40巻、第12号、1027, 2002.03.
69. H. Watanabe, T. Muroga, N. Yoshida, Effects of Varying Temperature Irradiation of the Microstructure of Neutron Irradiated Austenitic Stainless Steels, 日本金属学会, 2002.03.
70. T. Muroga, S.J.Zinkle, A. L. Qualls, H. Watanabe, Varying Temperature Irradiation Experiment in HFIR, Journal of Nuclear Materials, 10.1016/S0022-3115(01)00675-4, 299, 2, 148-156, Vol. 299 148-156, 2001.11.
71. K. Yasunaga, H. Watanabe, N. Yoshida, T. Murorga, N. Noda, Correlation between Defect Structure and Hardness in Tantalum Irradiated by Heaby Ions, Journal of Nuclear Materials, 10.1016/S0022-3115(00)00354-8, 283, 179-182, Vol.283-287 179-182, 2000.10.
72. H. Watanabe, T. Arinaga, K. Ochiai, T. Muroga, N. Yoshida, Microstructure of Vanadium Alloys during Ion Irradiated with Stepwise Change of Temperature, Journal of Nuclear Materials, 10.1016/S0022-3115(00)00307-X, 283, 286-290, Vol. 283-287 286-290, 2000.10.
73. D. Hamaguchi, T. Muroga, H. Watanabe, N. Yoshida, Influence of Variable Temperatures Irradiation on Microstructural Evolution in Phosphorus Doped Fe-Cr-Ni alloys, Journal of Nuclear Materials, 10.1016/S0022-3115(00)00133-1, 283, 319-323, Vol. 283-287 319-323, 2000.10.