Remarkable toughness of a nanostructured medium-entropy nitride compound

Author:

Chen Yujie12ORCID,An Xianghai3,Zhou Zhifeng4,Ma Jisheng5,Munroe Paul6,Zhang Sam1ORCID,Xie Zonghan2

Affiliation:

1. Centre for Advanced Thin Films and Devices, School of Materials and Energy, Southwest University, Chongqing 400715, China

2. School of Mechanical Engineering, The University of Adelaide, Adelaide, SA 5005, Australia

3. School of Aerospace, Mechanical and Mechatronic Engineering, The University of Sydney, Sydney, NSW 2006, Australia

4. Hong Kong Branch of National Precious Metals Material Engineering Research Center (NPMM), City University of Hong Kong, Hong Kong, China

5. Monash X-ray Platform and Department of Materials Science & Engineering, Monash University, Clayton, VIC 3800, Australia

6. School of Materials Science and Engineering, The University of New South Wales, Sydney, NSW 2052, Australia

Abstract

Due to the operation of unconventional toughening mechanisms, including amorphization and multiple shear banding, the medium-entropy nitride, CrCoNiN doped with Al and Ti, exhibits a superior combination of hardness and fracture toughness.

Funder

Central University Basic Research Fund of China

Australian Research Council

University of Sydney

National Natural Science Foundation of China

Publisher

Royal Society of Chemistry (RSC)

Subject

General Materials Science

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