커뮤니티

연구성과

CML [CML] Prof. Dong-Woo Suh: Influence of initial microstructures on intercritical

페이지 정보

profile_image

작성자 최고관리자

댓글 0건 조회 501회 작성일 2019-01-28 14:34

본문

The present work reports the effect of different initial microstructures on reverse transformation kinetics and morphologies of austenite formed during intercritical annealing in Fe-0.14C-7Mn-1Si (wt-%)mediumMnsteel. Three different initial microstructures were produced by cold-rolling and cold-rolling followed by austenitisation at 820°C and 900°C. The specimen austenitised at higher temperature shows lath-type austenite after intercritical annealing. The difference in austenitisation temperature leads to different Mn distribution in martensitic initial microstructures, thereby leading to a difference in morphology of austenite. The inhomogeneous Mn profiles in initial microstructures also affect reverse transformation kinetics of austenite upon intercritical annealing. The presence of Mn-enriched regions accelerates austenite growth at an early stage of intercritical annealing but retards the transformation kinetics afterwards.

댓글목록

등록된 댓글이 없습니다.