Accession Number:

AD0745473

Title:

Oxidation of Iron-, Nickel-, and Cobalt-Base Alloys,

Descriptive Note:

Corporate Author:

BATTELLE COLUMBUS LABS OHIO METALS AND CERAMICS INFORMATION CENTER

Personal Author(s):

• Wright,I. G.

Report Date:

1972-06-01

Pagination or Media Count:

62.0

Abstract:

Iron-, nickel-, and cobalt-base superalloys, starting from the compositions Fe-20Cr, Ni-20Cr, and Co-20 to 25Cr, have been developed along fundamentally different routes dictated mainly by differing compositional requirements in the search for increased high temperature strength. In Ni-Cr alloys, for example, chromium content has been decreased gradually, and the aluminum content increased to the extent that the alloys now are basically Ni-Cr-Al alloys. In the review current data relating to the oxidation of the relevant pure metals and their binary and ternary alloys are examined first, and then data on oxidation of the more complex engineering alloys are considered. The oxidizing atmosphere is assumed to be oxygen or air, but the mechanisms described generally are applicable to other oxidizing atmospheres. Author

Descriptors:

• *CORROSION
• *IRON ALLOYS
• *NICKEL ALLOYS
• *COBALT ALLOYS
• *GAS TURBINES
• CORROSION
• CORROSION
• CORROSION
• HEAT RESISTANT ALLOYS
• OXIDATION
• REACTION KINETICS
• CHROMIUM ALLOYS
• ALUMINUM ALLOYS

Subject Categories:

• Properties of Metals and Alloys
• Jet and Gas Turbine Engines

Distribution Statement:

APPROVED FOR PUBLIC RELEASE