Hot Corrosion Behavior of Modified Aluminide Coatings on Cobalt-Base Superalloys.

Abstract

Marine gas turbines experience a number of detrimental operating conditions as a result of environment and fuel variation. There are two types of hot corrosion which occur in marine and other types of gas turbines known as low temperature hot corrosion and high temperature hot corrosion. Protective coatings are necessary and have been widely used to improve hot corrosion resistance for superalloys operating in this environment. Considerable data can be obtained from the literature on systems applied to nickel-base superalloys while little data are available on similarly coated cobalt-base superalloys. This study was initiated to evaluate the behavior of modified coatings on a series of cobalt-base superalloys in both high and low temperature hot corrosion.

Open PDF

Document Details

Document Type
Technical Report
Publication Date
Jun 01, 1986
Accession Number
ADA174636

Entities

People

  • Muhammad Yasin

Organizations

  • Naval Postgraduate School

Tags

DTIC Thesaurus Topics

  • Chemical Vapor Deposition
  • Chemistry
  • Coatings
  • Corrosion Resistance
  • Engineering
  • Gas Turbines
  • Heat Resistant Alloys
  • High Temperature
  • Low Temperature
  • Materials
  • Mechanical Engineering
  • Mechanical Properties
  • Propulsion Systems
  • Protective Coatings
  • Refractory Metals
  • Sheet Metal
  • Turbines

Fields of Study

  • Materials science

Readers

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