Effect of Peierls stress and strain-hardening parameters on EMR emission in metals and alloys during progressive plastic deformation

Abstract

Abstract The article deals with the development of a theoretical model to predict the nature (amplitude and shape) of deformation-induced electromagnetic radiation (EMR) in metals and alloys during progressive plastic deformation. The model explicitly embraces the effect of Peierls stress and strain hardening to envisage the nature of EMR in materials with relatively large Peierls stress. The theoretical results were evaluated for 0.15 % plain carbon steel and compared with experimental results. The signals obtained from the model were found to be exponential in shape and are in good agreement with the experimental observations. The results suggest that inclusion of strain hardening parameters in the earlier model is necessary for determining deformation induced EMR in bcc metals and alloys during progressive plastic deformation.