Real-time observations of TRIP-induced ultrahigh strain hardening in a dual-phase CrMnFeCoNi high-entropy alloy

Sijing Chen; Hyun Seok Oh; Bernd Gludovatz; Sang Jun Kim; Eun Soo Park; Ze Zhang; Robert O. Ritchie; Qian Yu

doi:10.1038/s41467-020-14641-1

Nature Communications (Feb 2020)

Real-time observations of TRIP-induced ultrahigh strain hardening in a dual-phase CrMnFeCoNi high-entropy alloy

Sijing Chen,
Hyun Seok Oh,
Bernd Gludovatz,
Sang Jun Kim,
Eun Soo Park,
Ze Zhang,
Robert O. Ritchie,
Qian Yu

Affiliations

Sijing Chen: Department of Materials Science & Engineering, Center of Electron Microscopy and State Key Laboratory of Silicon Materials, Zhejiang University
Hyun Seok Oh: Research Institute of Advanced Materials, Department of Materials Science and Engineering, Seoul National University
Bernd Gludovatz: School of Mechanical and Manufacturing Engineering, UNSW Sydney
Sang Jun Kim: Research Institute of Advanced Materials, Department of Materials Science and Engineering, Seoul National University
Eun Soo Park: Research Institute of Advanced Materials, Department of Materials Science and Engineering, Seoul National University
Ze Zhang: Department of Materials Science & Engineering, Center of Electron Microscopy and State Key Laboratory of Silicon Materials, Zhejiang University
Robert O. Ritchie: Materials Sciences Division, Lawrence Berkeley National Laboratory
Qian Yu: Department of Materials Science & Engineering, Center of Electron Microscopy and State Key Laboratory of Silicon Materials, Zhejiang University

DOI: https://doi.org/10.1038/s41467-020-14641-1
Journal volume & issue: Vol. 11, no. 1
pp. 1 – 8

Abstract

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In dual-phase Cantor-like high entropy alloys, how local chemistry affects enhanced deformation mechanisms remains unclear. Here, the authors image 3D stacking fault networks formation and show they both impede dislocations and facilitate phase transformations via local chemical composition variations.

Published in Nature Communications

ISSN: 2041-1723 (Online)
Publisher: Nature Portfolio
Country of publisher: United Kingdom
LCC subjects: Science
Website: https://www.nature.com/ncomms/

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