DEVELOPMENT OF HOT-CORROSION RESISTANT COBALT-BASE ALLOYS FOR MARINE APPLICATIONS

The aims of the program conducted by General Electric, Schenectady, N.Y. were to develop and test Co-base alloys (MELCO alloys) for service as a vane material in a typical marine gas turbine having a firing temperature of 1750 F and a 5000-hr life between overhauls, and to evaluate in hot-corrosion variations of essentially a carbon-free Co-Cr-Ni-Ta matrix (DISCO alloys), which could be dispersion strengthened and used for advanced vane applications up to 2200 F. Mechanical and hot corrosion tests are reported and the phase stability of the alloys examined.

• Corporate Authors:

  Centre d'Information du Cobalt

  31 Avenue des Arts
  1040 Brussels,   Belgium 
• Authors:
  • Wagenheim, N T
• Publication Date: 1970-9

Media Info

• Pagination: p. 129-41
• Serial:
  • Cobalt
  • Issue Number: 8
  • Publisher: Centre d'Information du Cobalt

Subject/Index Terms

• TRT Terms: Blades (Machinery); Cobalt; Corrosion; Corrosion resistance; Gas turbines
• Old TRIS Terms: Cobalt alloys; Hot corrosion
• Subject Areas: Marine Transportation; Materials;

Filing Info

• Accession Number: 00024820
• Record Type: Publication
• Source Agency: Engineering Index
• Files: TRIS
• Created Date: Jan 21 1972 12:00AM