Experimental producing of Cu–Cr–N composite alloys and thermodynamic modeling of their phase composition-Reference-Cited by-同舟云学术

Experimental producing of Cu–Cr–N composite alloys and thermodynamic modeling of their phase composition

Published:2019-01-10 Issue:3(95) Volume: Page:111-122
ISSN:1994-6716
Container-title:Voprosy Materialovedeniya
language:
Short-container-title:Vopr. materialoved.

Author:

Melchakov S. Yu.¹,Bodrova L. E.¹,Goyda E. Yu.¹,Shubin A. B.¹,Somov P. A.²

Affiliation:

1. Institute of Metallurgy, Ural Branch of the Russian Academy of Sciences (IMET UrO RAN)

2. “TESKAN”

Abstract

Composite Cu–Cr–N alloys were obtained in situ under vibration of “copper melt – chromium powder” compositions before their crystallization. Two types of alloys were prepared, where chromium powder was freely dispersed or compacted into a tablet. Atmospheric nitrogen was used as a source of chromium nitrides in the alloys. The microstructure of the alloys is represented by a copper matrix hardened with chromium particles and numerous inclusions of non-stoichiometric chromium nitrides Cr2N1–x. Thermodynamic modeling showed that the composition and quantities of chromium nitrides in the Cu–Cr–N alloy depend on the partial pressure of nitrogen above the melt.

Publisher

FSUE CRISM Prometey

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