Metastable Hexagonal Modifications of the NbCr2 Laves Phase as Function of Cooling Rate

Author:

Aufrecht Jochen,Leineweber Andreas,Mittemeijer Eric Jan

Abstract

AbstractIn as-cast ingots produced by arc-melting, several metastable polytypic modifications of NbCr2 were found additional to the cubic C15 phase stable at room temperature: C14, C36 and 6H-type structures, often highly faulted and/or intergrown. Strikingly, these phases had formed at locations of the specimen which had experienced a relatively low cooling rate, whereas the C15 phase was formed preferentially in regions which had experienced the highest cooling rates.

Publisher

Springer Science and Business Media LLC

Subject

General Engineering

Reference10 articles.

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