| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide improved compositions for the protection of gas turbine parts at elevated temperatures. <P>SOLUTION: The compositions are of the MCrAlY type, wherein M is nickel, or a combination of nickel with cobalt and/or iron. The compositions further comprise a lanthanide, a Group 4 metal selected from hafnium, zirconium, titanium, or a combination of these, and optionally a Group 14 element selected from silicon and/or germanium. The composition results in improved Al retention properties. Also disclosed herein are articles comprising the coatings. <P>COPYRIGHT: (C)2008,JPO&INPIT</p> |
