发明公开
EP2592162A3 Methods of forming and austempering a ductile iron article and article made thereby
审中-公开
成形和可延展的等温淬火的方法铸铁和由此制造物品
- 专利标题： Methods of forming and austempering a ductile iron article and article made thereby
- 专利标题（中）： 成形和可延展的等温淬火的方法铸铁和由此制造物品
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申请号： EP12192058.1申请日： 2012-11-09
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公开(公告)号： EP2592162A3公开(公告)日： 2014-09-03
- 发明人: Parolini, Jason Robert , Park, Junyoung
- 申请人： General Electric Company
- 申请人地址： 1 River Road Schenectady, New York 12345 US
- 专利权人： General Electric Company
- 当前专利权人： General Electric Company
- 当前专利权人地址： 1 River Road Schenectady, New York 12345 US
- 代理机构： Cleary, Fidelma
- 优先权： US201113294365 20111111
- 主分类号： C21D1/20
- IPC分类号： C21D1/20 ; C21D5/00 ; F03D11/02
摘要：
A method of making a ductile iron article is disclosed. The method includes providing a ductile iron article preform (112). The method also includes deforming (120) the ductile iron article preform (112) by hot-working (125) to provide a hot-worked portion (114) of the article (112). The method further includes cooling (130) the article (112) to an austempering temperature. Still further, the method includes austempering (150) the ductile iron article preform (112) for a predetermined time sufficient to provide an austempered article preform (118) comprising an austempered microstructure, wherein the austempered microstructure of the hot-worked portion (114) is different than in other portions of the article (112).
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