- 专利标题： AUSTENITIC HIGH MANGANESE STEEL FOR CRYOGENIC APPLICATIONS HAVING EXCELLENT SURFACE QUALITY AND RESISTANCE TO STRESS CORROSION CRACKING, AND MANUFACTURING METHOD FOR SAME
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申请号： EP19876375.7申请日： 2019-10-25
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公开(公告)号： EP3872213A1公开(公告)日： 2021-09-01
- 发明人: KIM, Sung-Kyu , LEE, Sang-Hyeon , KANG, Sang-Deok , HAN, Sang-Ho , LEE, Un-Hae , HAN, Tae-Kyo , LEE, Dong-Ho , CHO, Won-Tae
- 申请人： POSCO
- 申请人地址： KR Gyeongsangbuk-do 37859 (Goedong-dong) 6261, Donghaean-ro Nam-gu Pohang-si
- 代理机构： Zech, Stefan Markus
- 优先权： KR20180128503 20181025
- 国际公布： WO2020085847 20200430
- 主分类号： C22C38/38
- IPC分类号： C22C38/38 ; C22C38/20 ; C22C38/32 ; C22C38/02 ; C22C38/06 ; C22C38/00 ; C21D9/46 ; C21D8/02 ; C21D6/00 ; B21B37/74 ; B21B37/16
摘要：
An aspect of the present invention can provide an austenitic high manganese steel for cryogenic applications and a manufacturing method for same, wherein the austenitic high manganese steel for cryogenic applications effectively ensures resistance to stress corrosion cracking by inducing the formation of twin crystals in corrosion and transformation composite environments, and effectively ensures surface quality by suppressing the formation of cracks in the surface of the steel.
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