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Investigation on the effect of yttrium and cerium additions on the corrosion resistance of slurry chromium aluminized IN 738 LC superalloy. European concerted action. cost 50 - materials for gas turbines, Project 16. final report

Technical Report ·
OSTI ID:5394111
The production and investigation of high temperature behavior of yttrium and cerium chromium aluminum diffusion coatings on IN 738 LC and Hastelloy X superalloys are discussed. The coating elements used were chromium, aluminum, and rare earth hydrides suitably prepared and deposited on the base materials by means of a slurry process followed by diffusion treatments. The influence of yttrium and cerium additions on the properties of CrAl coatings is pointed out. The corrosion protection, thermal properties, and creep resistance of the coatings were investigated; rig test analyses were performed with Fiat equipment. Yttrium modified coatings show better high temperature behavior.
Research Organization:
Fiat Research Center, Turin (Italy). Unita di Recerca Tecnologie Metallurgiche
OSTI ID:
5394111
Report Number(s):
N-79-25210
Country of Publication:
United States
Language:
English