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Recovered elastic and plastic strains at residual micro-indentations in an MgO crystal

 

作者: B.L. Hammond,   R.W. Armstrong,  

 

期刊: Philosophical Magazine Letters  (Taylor Available online 1988)
卷期: Volume 57, issue 1  

页码: 41-47

 

ISSN:0950-0839

 

年代: 1988

 

DOI:10.1080/09500838808227796

 

出版商: Taylor & Francis Group

 

数据来源: Taylor

 

摘要:

Elastic and plastic unloading effects are described for aligned diamond pyramid indentations imposed on a (001) MgO crystal surface. Substantial elastic recovery effects are explained in terms of the theoretical Hertzian behaviour for a ball indentation test. Limited reversal of the plastic deformation field occurs, involving dislocation processes which first produce an extensive amount of slip and cracking during the loading portion of the indentation cycle.

 

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