发明名称 |
Tial-based alloys with excellent oxidation resistance, and method for producing the same |
摘要 |
The invention relates to TiAl-base alloys with excellent oxidation resistance, and a method for producing the same. The TiAl-base alloy of the invention comprises a substrate and a surface part formed on the substrate, the surface part comprising at least one element of Cr, Nb, Ta and W and having a surface condition capable of forming a dense film of an oxide of the element or Al2O3 in high-temperature oxidizing atmospheres. The method of the invention comprises heating a TiAl-base alloy material having an Al content of from 15 at. % to 55 at. % in the presence of an oxide having a smaller negative value of standard free energy of formation than that of alumina. The method of the invention provides TiAl-base alloys with excellent oxidation resistance.
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申请公布号 |
US6410154(B2) |
申请公布日期 |
2002.06.25 |
申请号 |
US19970952514 |
申请日期 |
1997.11.28 |
申请人 |
KABUSHIKI KAISHA TOYOTA CHUO KENKYUSHO |
发明人 |
KAWAURA HIROYUKI;NISHINO KAZUAKI;SAITO TAKASHI |
分类号 |
C23C8/02;C23C8/10;C23C12/02;C23C26/00;(IPC1-7):B32B9/00 |
主分类号 |
C23C8/02 |
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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