Discussion of “Formation of an Intermediate Layer Between Grains in Nickel-Based Superalloy Turbine Blades”*

John Campbell

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Abstract

Kim and Withey discuss the formation of an ‘intermediate layer’, formed between grains, which they observe in some Ni-base superalloys. This author proposes that the layer is the result of the presence of a bifilm, a double film probably of oxide or nitride, which appears to be capable of providing a coherent explanation of all the interesting observations reported by the authors.
Original languageEnglish
Pages (from-to)5157-5159
JournalMetallurgical and Materials Transactions A
Volume48
Issue number10
Early online date1 Aug 2017
DOIs
Publication statusPublished - 1 Oct 2017

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