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Room-Temperature Deformation and Martensitic Transformation of Two Co-Cr-Based Alloys

Room-Temperature Deformation and Martensitic Transformation of Two Co-Cr-Based Alloys Deformation of two Co-Cr alloys was studied by in situ synchrotron X-ray diffraction. Both alloys show stress-induced martensite transformation, which is affected by phase stabilities and transformation strains. Crystal structure of WC in Co-20Cr-15W-10Ni is identified. Compared with other phases present, it is elastically isotropic, exhibits high strength, and can elastically withstand strains exceeding 1 pct. Texture change during phase transformation is explained based on the crystal orientation relationship between γ- and ε-phases. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Metallurgical and Materials Transactions A Springer Journals

Room-Temperature Deformation and Martensitic Transformation of Two Co-Cr-Based Alloys

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Publisher
Springer Journals
Copyright
Copyright © 2018 by The Minerals, Metals & Materials Society and ASM International
Subject
Materials Science; Metallic Materials; Characterization and Evaluation of Materials; Structural Materials; Surfaces and Interfaces, Thin Films; Nanotechnology
ISSN
1073-5623
eISSN
1543-1940
DOI
10.1007/s11661-018-4636-x
Publisher site
See Article on Publisher Site

Abstract

Deformation of two Co-Cr alloys was studied by in situ synchrotron X-ray diffraction. Both alloys show stress-induced martensite transformation, which is affected by phase stabilities and transformation strains. Crystal structure of WC in Co-20Cr-15W-10Ni is identified. Compared with other phases present, it is elastically isotropic, exhibits high strength, and can elastically withstand strains exceeding 1 pct. Texture change during phase transformation is explained based on the crystal orientation relationship between γ- and ε-phases.

Journal

Metallurgical and Materials Transactions A – Springer Journals

Published: May 2, 2018

References

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    Earnshaw, R.
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    Yukawa, N.; Sato, K.
  • The Second Edition of Structure of Crystals
    Wyckoff, R.W.G.