Chung, Young Hoon 2024-01-13T01:04:10Z 2024-01-13T01:04:10Z 2021-09-29 https://pubs.kist.re.kr/handle/201004/100837 English ECAR Severe plastic deformation formability fine grain Al alloys Recent development of Equal Channel Angular Rolling(ECAR) technology Conference 1 THERMEC2009 THERMEC2009 GW