Surface Modification Concepts for Enhancement of the High-Temperature Corrosion Resistance of Gas Turbine Superalloys,

Abstract

This report summarizes the current view of the mechanisms of the phenomenon of hot corrosion, whereby the surface integrity of gas turbine superalloys is degraded, and also the principal types of protective coating applied to aerofoil components made of these materials to inhibit hot corrosion and extend their useful lives. A concept is presented that the high-temperature corrosion resistance of superalloys can be significantly enhanced by selective modification of the composition and structure of their parasurface zones, utilizing new methods of surface treatment such as ion implantation, laser alloying, and thermal passivation. (Author)

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Document Details

Document Type
Technical Report
Publication Date
Dec 01, 1980
Accession Number
ADA103419

Entities

People

  • Noel A. Burley

Organizations

  • Defence Science and Technology Group

Tags

Communities of Interest

  • Advanced Electronics
  • Air Platforms
  • Ground and Sea Platforms

DTIC Thesaurus Topics

  • Ceramic Materials
  • Chemistry
  • Coatings
  • Corrosion
  • Corrosion Resistance
  • Gas Turbines
  • Heat Resistant Alloys
  • High Temperature
  • Ion Implantation
  • Material Degradation Processes
  • Materials
  • Materials Engineering
  • Materials Testing
  • Mechanical Properties
  • Protective Coatings
  • Solid Solutions
  • Turbines

Fields of Study

  • Materials science
  • Physics

Readers

  • Powder metallurgy of Titanium alloys.
  • Software Engineering
  • Surface Coatings Technology.

Technology Areas

  • Directed Energy