发明名称 Alloy castings having protective layers and methods of making the same
摘要 An alloy casting having a protective layer disposed on a surface of the casting is provided. The protective layer is resistant to liquid metal attack, and wherein the protective layer includes an oxide of an element present in the alloy. A method of forming a protective layer on a surface of the alloy casting is also provided. The method includes disposing the alloy in a mold, and oxidizing an element of the alloy to form a protective layer on the surface of the casting.
申请公布号 US8906170(B2) 申请公布日期 2014.12.09
申请号 US200812145459 申请日期 2008.06.24
申请人 General Electric Company 发明人 Gigliotti, Jr. Michael Frances Xavier;Rutkowski Stephen Francis;Huang Shyh-Chin;Petterson Roger John;Iorio Luana Emiliana;Elliott Andrew John
分类号 C23C22/56;C23C8/10 主分类号 C23C22/56
代理机构 Fletcher Yoder, P.C. 代理人 Fletcher Yoder, P.C.
主权项 1. A method of forming a protective layer on a surface of a casting of an alloy, comprising: disposing the alloy in a mold; and oxidizing an element of the alloy, while the alloy is in the mold, to form a protective layer on the surface of the casting, such that the protective layer is attached to the surface of the casting; wherein a thickness of the protective layer is in a range from about 1.2 microns to about 50 microns.
地址 Niskayuna NY US