Kyushu University Academic Staff Educational and Research Activities Database
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QIANG CHEN Last modified date:2018.06.20



Graduate School
Undergraduate School
Other Organization


E-Mail
Homepage
http://irose.kyushu-u.ac.jp/_en
School of Engineering International Education Suppot Center .
Phone
092-802-3286
Fax
092-802-0001
Academic Degree
PhD in Materials Science
Field of Specialization
Fatigue and Fracture, Mechanics of Materials
Outline Activities
Current research interests include fatigue and fracture of LPSO phase strengthened Mg alloys as well as Hydrogen-assisted Cracking in Metals.

Keywords: Fatigue and Fracture, Very High Cycle Fatigue, Relation between Microstructure and Mechanical Behavior, LPSO Mg Alloys, Fatigue in MEMS/BioMEMS, In-Situ TEM/STEM Analysis
Research
Research Interests
  • Very High Cycle Fatigue of Super Light High Strength Mg Alloys
    keyword : Fatigue, Mg Alloy, Small Crack, Crack Nucleation, Crack Propagation, Fracture
    2016.04~2019.03.
  • Mechanical Characterization of Parylene C Thin Films
    keyword : Parylene C, Thin Film, Mechanical Properties, Size Effect
    2016.04.
Academic Activities
Papers
1. Chao He, Yongjie Liu, Jiukai Li, Kun Yang, Qingyuan Wang, Qiang Chen, Very-high-cycle fatigue crack initiation and propagation behaviours of magnesium alloy ZK60, Materials Science and Technology, 10.1080/02670836.2017.1407556, 34, 6, 639-647, 2017.11, The aim of this paper is to assess the very-high-cycle fatigue (VHCF) behaviour of a magnesium alloy (ZK60). Results indicate that the fatigue crack initiates from an area consisting of many distributed facets, while the region of early crack propagation is characterised by parallel traces, based on a fractographic analysis. The significant differences in morphology around the crack initiation area result from the interaction between the deformation twinning and the plastic zone at the crack tip. In addition, the fatigue crack propagation rate around the crack initiation site is also estimated based on a modified Murakami model. It is found that the formation stage for the fatigue crack is of great importance to the fatigue failure mechanism in the VHCF regime..
Membership in Academic Society
  • Materials Research Society
  • The Minerals, Metals & Materials Society
  • The Japan Society of Mechanical Engineers