发明名称 |
REVESTIMENTO CONTENDO CARBONO, ARTIGOS DE SUPER-LIGA REVESTIDO E PROCESSO DE PREPARACAO DO REVESTIMENTO |
摘要 |
<p>A protectively coated superalloy has improved oxidation, corrosion, and wear resistance at elevated temperatures. The protective coating is a MCrAlY type alloy having a carbon content of 0.6 to 11 percent and is characterized in a preferred embodiment by having a carbon bearing matrix containing metal carbides of 1-2 microns mean size and chromium carbides of less than 12 microns. The coating is produced in plasma spraying a mixture of MCrAlY and CR3C2 powders to form a coating having both fine carbides and coarser Cr3C2 carbides in an MCrAlY matrix. Heat treatment at 1080 DEG C after coating bonds the substrate and coating and forms further fine carbides.</p> |
申请公布号 |
BR8005977(A) |
申请公布日期 |
1981.05.19 |
申请号 |
BR19808005977 |
申请日期 |
1980.09.18 |
申请人 |
UNITED TECHNOLOGIES CORP |
发明人 |
MORRIS J;MCCOMAS C;SOKOL L |
分类号 |
C23C4/08;(IPC1-7):C23F11/00 |
主分类号 |
C23C4/08 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|