Development and Evaluation of Processes for Deposition of Ni/Co-Cr-AlY (MCrAlY) Coatings for Gas Turbine Components.

Abstract

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.

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Document Details

Document Type
Technical Report
Publication Date
Jan 01, 1977
Accession Number
ADA038509

Entities

People

  • J. O. Hodshire

Organizations

  • General Motors

Tags

Communities of Interest

  • Air Platforms
  • Counter IED
  • Energy and Power Technologies

DTIC Thesaurus Topics

  • Air Force
  • Air Force Facilities
  • Base Metal
  • Chemical Synthesis
  • Chemistry
  • Coatings
  • Contracts
  • Electrophoretic Deposition
  • Elements
  • Gas Turbines
  • High Temperature
  • Materials
  • Materials Laboratories
  • Synthetic Rubber
  • Three Dimensional
  • Turbine Components
  • Turbines

Fields of Study

  • Materials science

Readers

  • Powder metallurgy of Titanium alloys.
  • Surface Engineering/Surface Coating Technology.