IMECH-IR  > 力学所知识产出(1956-2008)
Size and geometrical effects of single- and poly-crystal metals in micro-indentation test
Zhao M; Wang X; Wei YG(魏悦广); Wei, Y (reprint author), Chinese Acad Sci, Inst Mech, LNM, Beijing 100080, Peoples R China.
Source PublicationMECHANICS AND MATERIAL ENGINEERING FOR SCIENCE AND EXPERIMENTS
2001
Conference NameInternational Symposium of Young Scholars on Mechanics and Material Engineering for Science and Experiments
Conference DateAUG 11-16, 2001
Conference PlaceCHANGSHA, PEOPLES R CHINA
AbstractMicro-indentation tests at scales on the order of sub-micron have shown that measured hardness increases strongly with decreasing indent depth or indent size, which is frequently referred to as the size effect, In this paper, the micro-indentation experiments for single crystal copper(Cu) and aluminum(Al) are carried out. The experimental results of loading-displacement curves and hardness-depth relations are obtained, which displays the strong size effect. Meanwhile, in order to investigate the micro geometrical size effects, the indentation experiment for material of polycrystal Al is carried out. Finally, the strain gradient plasticity theory is used to model the size effect and geometrical effect for the materials undergoing the micro-indent. The material length parameter is predicted.
WOS IDWOS:000175560700093
ISBN1-880132-79-6
Indexed ByCPCI-S ; EI
Language英语
Citation statistics
Document Type会议论文
Identifierhttp://dspace.imech.ac.cn/handle/311007/58949
Collection力学所知识产出(1956-2008)
Corresponding AuthorWei, Y (reprint author), Chinese Acad Sci, Inst Mech, LNM, Beijing 100080, Peoples R China.
Recommended Citation
GB/T 7714
Zhao M,Wang X,Wei YG,et al. Size and geometrical effects of single- and poly-crystal metals in micro-indentation test[C]MECHANICS AND MATERIAL ENGINEERING FOR SCIENCE AND EXPERIMENTS,2001.
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