Numerical comparison between Berkovich and conical nano-indentations: Mechanical behaviour and micro-texture evolution

MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING

卷:619

Article

Liu, Mao¹  Lu, Cheng¹  Tieu, Kiet¹  Yu, Hailiang¹ 

[1] Univ Wollongong, Sch Mech Mat & Mechatron Engn, Wollongong, NSW 2522, Australia

关键词: Crystal plasticity finite element method;    Nano-indentation;    Texture;    Single crystal aluminium;   

DOI  :  10.1016/j.msea.2014.09.034

来源: Elsevier

【 摘 要 】

A crystal plasticity finite element method (CPFEM) model has been developed to investigate the influence of indenter geometry on the mechanical behaviour and micro-texture evolution during nano-indentation of single crystal aluminium. The developed model has been validated by comparison with experimental observations. The numerical results show that indenter geometry influences the load-indentation depth curve, hardness and elastic modulus significantly. The surface profile, equivalent plastic strain distribution and micro-texture evolution during nano-indentation have been analysed in detail. (C) 2014 Elsevier B.V. All rights reserved.

【 授权许可】

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