Research Progress on Surface Residual Stress Measurement Using Instrumented Indentation

Instrumented indentation as a kind of non-destructive, local and automatic mechanical testing technology which developed in recent years, has been applied to residual stress measurement. Firstly, the principle of residual stress measurement using instrumented indentation is elaborated. Secondly, the current analytical methods using sharp indentation and spherical indentation are introduced, advantages and disadvantages of those methods are compared and some possible remedies are proposed. Finally, research status in this area is concluded and the research trends are discussed.