发明名称 |
A MASTER ALLOY FOR PRODUCING SINTER HARDENED STEEL PARTS AND PROCESS FOR THE PRODUCTION OF SINTER HARDENED PARTS |
摘要 |
A master alloy used to produce the steel part and a process for producing a sinter hardened steel part from the master alloy are described. The powdered master alloy having a composition of iron, about 1 to less than 5 weight % C, about 3 to less than 15 weight % Mn, and about 3 to less than 15 weight % Cr, wherein the master alloy comprises a microstructure composed of a solid solution of the alloying elements and carbon, the microstructure comprising at least 10 volume % austenite and the remainder as iron compounds. The process comprises: preparing the master alloy, mixing the master alloy with a steel powder to produce a mixture wherein the weight % of the master alloy is from 5 to 35 weight % of the mixture, compacting the mixture into a shape of a part and sintering the mixture to produce the steel part, and controlling the cooling rate after sintering to produce sinter hardening. The master alloy powder can also be used as a sinter hardening enhancer when mixed with low-alloy steel powders. |
申请公布号 |
EP2536862(A4) |
申请公布日期 |
2016.07.13 |
申请号 |
EP20110741804 |
申请日期 |
2011.02.15 |
申请人 |
FEDERAL-MOGUL CORPORATION |
发明人 |
L'ESPERANCE, GILLES;BAILON-POUJOL, IAN;CHRISTOPHERSON, DENIS, JR. |
分类号 |
C22C35/00;B22F3/12;B22F3/24;C22C38/36;C22C38/38 |
主分类号 |
C22C35/00 |
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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