发明名称 |
MARTENSITIC STAINLESS STEEL MACHINEABILITY OPTIMIZATION |
摘要 |
A method of fabricating a martensitic stainless steel including: 1) heating steel to a temperature higher than austenizing temperature of the steel, then quenching the steel until a hottest portion of the steel is at a temperature less than or equal to a maximum temperature, and greater than or equal to a minimum temperature, a cooling rate being sufficiently fast for austenite not to transform into a ferrito-perlitic structure; 2) performing a first anneal followed by cooling until the hottest portion of the steel is at a temperature less than or equal to the maximum temperature and greater than or equal to the minimum temperature; 3) performing a second anneal followed by cooling to ambient temperature; and at the end of each of 1) and 2), performing: omega) as soon as temperature of the hottest portion of the steel reaches the maximum temperature, immediately heating the steel once more. |
申请公布号 |
EP2616561(B1) |
申请公布日期 |
2016.03.02 |
申请号 |
EP20110773051 |
申请日期 |
2011.09.08 |
申请人 |
SNECMA |
发明人 |
CHABOT, JEAN-FRANÇOIS, LAURENT;FERRER, LAURENT;THOISON, PASCAL, CHARLES, EMILE |
分类号 |
C22C38/00;C21D1/18;C21D1/22;C21D6/00;C22C38/04;C22C38/44;C22C38/46 |
主分类号 |
C22C38/00 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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