Fe-Mn계 합금에서 응력유기 ε 마르텐 사이트의 양에 미치는 열처리 온도의 영향

Abstract

In this work, a new method of measuring volume fraction of deformation-induced ε martensite is proposed using endothermic heat on reverse transformation. As grain size increases, the amount of ε martensite forming on cooling increases. However, with a decrease in grain size, more ε is induced by deformation, improving shape memory effect.