Low-temperature formation and oxidation resistance of nickel aluminide/nickel hybrid coatings on alloy steels

Autor: P.K. Datta, Z. D. Xiang, S.R. Rose
Rok vydání: 2008
Předmět:
Zdroj: Scripta Materialia. 59:99-102
ISSN: 1359-6462
DOI: 10.1016/j.scriptamat.2008.02.034
Popis: Conditions were identified for low-temperature formation of a hybrid coating consisting of an outer nickel aluminide layer and an inner nickel layer on alloy steels using a two-step process of nickel plating followed by pack aluminization. The long-term oxidation process of the coating in air at 650 °C did not obey any power laws of oxidation, but can be described by logarithmic kinetics. Factors affecting the lifetime of the coating at 650 °C were delineated.
Databáze: OpenAIRE