公开(公告)号：DE69103203T2

公开(公告)日：1995-05-04

申请号：DE69103203

申请日：1991-05-14

Applicant: UNITED TECHNOLOGIES CORP

Inventor： BEERS RUSSELL A ,  NOETZEL ALLAN A

IPC: C23C4/12 ,  C23C10/04 ,  C23C14/24 ,  F01D5/28

Abstract: A shield (2) restricts the circulation of a metal bearing gas around the platform surface (8) of a turbine blade (1) so that the gas deposits a thinner coating on the platform surface (8) than on the airfoil surface (6), whereby the coating is thick enough to provide desired corrosion and oxidation resistant properties for the airfoil surface (6), but is thin enough to prevent the platform surface (8), where stress forces are greatest, from becoming too brittle. The shield (12) may be modified to cover only the high pressure side of the platform surface (8).

公开(公告)号：DE69103203D1

公开(公告)日：1994-09-08

申请号：DE69103203

申请日：1991-05-14

Applicant: UNITED TECHNOLOGIES CORP

Inventor： BEERS RUSSELL A ,  NOETZEL ALLAN A

IPC: C23C4/12 ,  C23C10/04 ,  C23C14/24 ,  F01D5/28

Abstract: A shield (2) restricts the circulation of a metal bearing gas around the platform surface (8) of a turbine blade (1) so that the gas deposits a thinner coating on the platform surface (8) than on the airfoil surface (6), whereby the coating is thick enough to provide desired corrosion and oxidation resistant properties for the airfoil surface (6), but is thin enough to prevent the platform surface (8), where stress forces are greatest, from becoming too brittle. The shield (12) may be modified to cover only the high pressure side of the platform surface (8).