HOT CORROSION OF GAS TURBINE ROTOR BLADE MATERIALS DUE TO A LONG TERM FIELD TESTING

As a result of 22,000 hr gas turbine engine operation burning residual oil fuels of high sulfur concentration, Inconel-700 blade has been severely affected owing to hot corrosion, whereas Inconel-X has been virtually free from such an attack. Consideration of the alloy composition suggests that molybdenum and cobalt in Inconel-700 and iron in Inconel-X are important elements in relation to hot corrosion. On the basis of metallographic, electron microprobe and X-ray diffraction analyses, the effect of the alloy composition in regard to hot corrosion mechanisms is discussed in some detail.

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• Corporate Authors:

  American Society of Mechanical Engineers

  Two Park Avenue
  New York, NY  United States  10016-5990
• Authors:
  • Doi, H
  • ONODA, T
  • Harada, Y
• Publication Date: 1972-7

Media Info

• Serial:
  • Mechanical Engineering
  • Volume: 94 N
  • Issue Number: 7
  • Publisher: American Society of Mechanical Engineers
  • ISSN: 0025-6501

Subject/Index Terms

• TRT Terms: Blades (Machinery); Corrosion protection; Corrosion resistance; Gas turbines
• Subject Areas: Marine Transportation; Vehicles and Equipment;

Filing Info

• Accession Number: 00035057
• Record Type: Publication
• Source Agency: American Society of Mechanical Engineers
• Report/Paper Numbers: 72-GT-87
• Files: TRIS
• Created Date: Oct 27 1973 12:00AM