Use of differential thermoelectric method for an assessment of cavitation in superplastic deformation of alloys

摘要

The paper shows the possibility to apply the differential thermoelectric method for a qualitative express assessment of cavitation in a superplastic and plastic deformation of alloys. The subjections shown in the distribution of thermoelectric operative power during the length of samples allow to predict the place of distribution before the process of deformation is finished. According to the changes in a linear character of the dependence a{sub}c=f(l) in deformed samples is possible to make conclusions on local changes in a deformed condition of the material.