In situ techniques for characterization of strain localizations and time sequence of deformation processes

Abstract

This chapter gives a comprehensive overview on in situ characterization techniques, which are useful for the characterization of strain localizations and the temporal evolution of deformation processes. The chapter is divided into four parts regarding (i) general remarks, (ii) in situ imaging techniques, (iii) in situ acoustic emission measurements and (iv) in situ full-field measurement techniques. The part of in situ imaging techniques is divided into (i) optical microscopy and scanning electron microscopy, whereas the part of full-field measurement techniques is separated into digital image correlation (measurement of displacement and/or strain fields) and infrared thermography (measurement of thermal fields). For all in situ techniques, a short historical overview is given together with a summary of the basic knowledge and a review of state-of-the-art research (starting from the year 2000 provided in the appendix).