Development and evaluation of processes for deposition of Ni/Co--Cr--AlY (MCrAlY) coatings for gas turbine components. Final report
Technical Report
·
OSTI ID:7253283
The feasibility of producing an MCrAlY type overlay coating structure by electrophoretic (AEP) deposition was demonstrated. A NiCrAlY coating was produced on directionally solidified Mar M006 by AEP deposition of chemically activated NiCrY powder with subsequent cold isostatic pressing and aluminizing treatments. The NiCrAlY coating microstructure consisted essentially of chromium rich particles in a Ni-Cr-Al matrix and minimal interdiffusion with the base metal. The structure contained scattered porosity. Cold isostatic pressing was introduce near the end of the Task I effort. The AEP NiCrAlY process feasibility was demonstrated.
- Research Organization:
- General Motors Corp., Indianapolis, IN (USA). Detroit Diesel Allison Div.
- OSTI ID:
- 7253283
- Report Number(s):
- AD-A-38509
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
36 MATERIALS SCIENCE
360101* -- Metals & Alloys-- Preparation & Fabrication
ALLOYS
ALUMINIUM ALLOYS
CHROMIUM ALLOYS
COATINGS
COBALT ALLOYS
CRYSTAL STRUCTURE
DEPOSITION
FABRICATION
FEASIBILITY STUDIES
GAS TURBINES
MATERIALS WORKING
MICROSTRUCTURE
NICKEL ALLOYS
POROSITY
PRESSING
TURBINES
TURBOMACHINERY
YTTRIUM ALLOYS
360101* -- Metals & Alloys-- Preparation & Fabrication
ALLOYS
ALUMINIUM ALLOYS
CHROMIUM ALLOYS
COATINGS
COBALT ALLOYS
CRYSTAL STRUCTURE
DEPOSITION
FABRICATION
FEASIBILITY STUDIES
GAS TURBINES
MATERIALS WORKING
MICROSTRUCTURE
NICKEL ALLOYS
POROSITY
PRESSING
TURBINES
TURBOMACHINERY
YTTRIUM ALLOYS