| 发明名称 |
METHOD FOR PRODUCING HIGH-STRENGTH DUPLEX STAINLESS STEEL |
| 摘要 |
The invention relates to a method for producing a high-strength ferritic austenitic duplex stainless steel with the TRIP (Transformation induced plasticity) effect with deformation. After the heat treatment on the temperature range of 950 1150° C. in order to have high tensile strength level of at least 1000 MPa with retained formability the ferritic austenitic duplex stainless steel is deformed with a reduction degree of at least 10%, preferably at least 20% so that with a reduction degree of 20% the elongation (A50) is at least 15%. |
| 申请公布号 |
US2016319391(A1) |
申请公布日期 |
2016.11.03 |
| 申请号 |
US201415103357 |
申请日期 |
2014.12.10 |
| 申请人 |
OUTOKUMPU OYJ |
发明人 |
Oliver James;Andersson Jan-Olof;Schedin Erik |
| 分类号 |
C21D9/48;C21D7/10;C22C38/58;C22C38/54;C22C38/52;C22C38/00;C22C38/48;C22C38/46;C22C38/44;C22C38/42;C22C38/06;C22C38/02;C21D8/04;C22C38/50 |
主分类号 |
C21D9/48 |
| 代理机构 |
|
代理人 |
|
| 主权项 |
1. Method for producing a high-strength ferritic austenitic duplex stainless steel with the TRIP (Transformation induced plasticity) effect with deformation, characterized in that after the heat treatment on the temperature range of 950-1150° C. in order to have high tensile strength level of at least 1000 MPa with retained formability the ferritic austenitic duplex stainless steel is deformed with a reduction degree of at least 10%. |
| 地址 |
Espoo FI |
