发明授权
US06582772B2 Method for preparing an article with a hafnium-silicon-modified platinum-aluminide bond or environmental coating 失效
制备具有铪硅改性的铂 - 铝化物键或环境涂层的制品的方法

Method for preparing an article with a hafnium-silicon-modified platinum-aluminide bond or environmental coating
摘要:
An article such as a gas turbine blade or vane has a superalloy substrate, and a coating system deposited on the substrate. The coating system includes a protective layer overlying the substrate, and, optionally, a ceramic thermal barrier coating layer overlying the bond coat. The protective layer has an uppermost layer with a composition including platinum, aluminum, and, in atom percent, from about 0.14 to about 2.8 percent hafnium and from about 2.7 to about 7.0 percent silicon, with the atomic ratio of silicon:hafnium being from about 1.7:1 to about 5.6:1.
信息查询
0/0