Improvement of microstructure and property of cold-sprayed Cu-4 at.%Cr-2 at.%Nb alloy by heat treatment

W. Y. Li, X. P. Guo, C. Verdy, L. Dembinski, H. L. Liao, C. Coddet

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72 引用 (Scopus)

摘要

The effect of vacuum heat treatment on the microstructure and microhardness of the cold-sprayed Cu-4 at.%Cr-2 at.%Nb alloy was investigated. After heat treatment, a Cr2Nb phase formed in the gas-atomized powder was uniformly distributed in the matrix. Minimal grain growth of the Cr2Nb phase was observed accompanying the healing-up of the incomplete interfaces between the deposited particles at the elevated treatment temperatures. The microstructure and microhardness of the annealed cold-sprayed Cu-4 at.%Cr-2 at.%Nb alloy were comparable with those of the deposits fabricated by vacuum plasma spraying, which makes it a promising material for regeneratively cooled rocket engine applications.

源语言英语
页(从-至)327-330
页数4
期刊Scripta Materialia
55
4
DOI
出版状态已出版 - 8月 2006
已对外发布

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