[G] Corrosion and Protection

10:15 AM - 10:30 AM JST(1:15 AM - 1:30 AM UTC)

[216] Effect of cold rolling rate on microstructure, residual stress, major elements of super duplex stainless steel EN 1.4501

○Hyeonil Kim¹, Jaeseong Choi¹, byunghyun Shin², ilguk Jo¹ (1. Advanced Materials Science and Engineering, Dong-Eui University, Republic of Korea, 2. Pohang Institute of Materials Industry Advancement (POMIA))

Keywords:

Super duplex stainless steel,Cold Rolling,Reduction ratio,Stress relaxation,Heat treatment,Phase morphological,EBSD,KAM

Super Duplex Stainless Steel (SDSS) has high strength and corrosion resistance from its ferrite-austenite structure but is hard to process. This study analyzed SDSS EN 1.4501 under varying rolling ratios via FE-SEM, EBSD and EPMA, revealing grain refinement and increased stress with rolling ratio.