专利类型:  发明专利
申请号:  US51116290
申请日期:  1990-04-17
公开号:  US5077140A
公开日期:  1991-12-31
申请人:  GEN ELECTRIC
发明人:  LUTHRA KRISHAN L;MCKEE DOUGLAS W
地址:  
摘要:  Coatings that provide substantial oxidation protection for titanium substrates are comprised of a continuous coating of ductile MCrAl or ductile MCr alloys where M is at least one metal selected from the group consisting of iron, nickel, and cobalt. Ductile MCrAl alloys are comprised of, by weight percent: about 10 to 40 percent chromium, about 4 to 10 percent aluminum, and the balance substanitally iron; about 8 to 40 percent chromium, about 4 to 10 percent aluminum, and the balance substantially nickel; or about 10 to 25 percent chromium, about 4 to 5.5 percent aluminum, and the balance substantially cobalt. Ductile MCr alloys are comprised of, by weight percent: about 20 to 40 percent chromium, and the balance substantially iron; about 20 to 50 percent chromium, and the balance substantially nickel; or about 15 to 35 percent chromium, and the balance substantially cobalt. The coatings can be deposited by plasma spraying, chemical vapor deposition, or physical vapor deposition and remain adherent on titanium substrates during repeated thermal cycling while providing substantial oxidation protection up to about 950° C.
主权项:  A method for protecting titanium substrates from oxidation at temperatures of up to about 900° C., comprising: plasma spraying onto a titanium substrate a continuous coating of an alloy selected from the group consisting of, by weight percent; about 10 to 40 percent chromium, about 4 to 10 percent aluminum, and the balance substantially iron; about 8 to 40 percent chromium, about 4 to 10 percent aluminum, and the balance substantially nickel; about 10 to 25 percent chromium, about 4 to 5.5 percent aluminum, and the balance substantially cobalt; the coating capable of remaining adherent after repeated thermal cycling.
专利分类号:  C22C38/00;C23C4/08;C22C38/18;C23C4/06;C22C19/00;B32B15/01(5)
专利状态:  失效专利
代理人:  
代理机构:  McGinness James E.;Davis, Jr. James C.;Magee, Jr. James
国家及地区:  
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