A process for forming a protective metal diffusion coating on a metal or metal alloy workpiece including internal cavity surfaces, comprises coating the workpiece with a slurry in acetone and cellulose acetate of a powder of average grain size of 0.5 mu to 10 mu , including aluminum and possibly chromium and/or a small quantity of cerium or yttrium hydride and heating the workpiece in a non-oxidizing environment to dissociate the hydride and effect diffusion of the metals into the surface of the workpiece.
申请公布号
DE2830851(B2)
申请公布日期
1981.05.21
申请号
DE19782830851
申请日期
1978.07.13
申请人
FIAT S.P.A., TORINO, IT
发明人
MARTINENGO, PIER CARLO, TURIN, IT;CARUGHI, CARLO, CANTALUPA, TURIN, IT
