Hierarchical crack buffering triples ductility in eutectic herringbone high-entropy alloys-Reference-Cited by-同舟云学术

Hierarchical crack buffering triples ductility in eutectic herringbone high-entropy alloys

Published:2021-08-20 Issue:6557 Volume:373 Page:912-918
ISSN:0036-8075
Container-title:Science
language:en
Short-container-title:Science

Author:

Shi Peijian¹^ORCID,Li Runguang²^ORCID,Li Yi¹,Wen Yuebo¹,Zhong Yunbo¹^ORCID,Ren Weili¹,Shen Zhe¹,Zheng Tianxiang¹,Peng Jianchao³,Liang Xue³,Hu Pengfei³,Min Na³^ORCID,Zhang Yong²^ORCID,Ren Yang⁴^ORCID,Liaw Peter K.⁵^ORCID,Raabe Dierk⁶^ORCID,Wang Yan-Dong²⁷^ORCID

Affiliation:

1. State Key Laboratory of Advanced Special Steel, Shanghai Key Laboratory of Advanced Ferrometallurgy, School of Materials Science and Engineering, Shanghai University, Shanghai, China.

2. Beijing Advanced Innovation Center for Materials Genome Engineering, State Key Laboratory for Advanced Metals and Materials, University of Science and Technology Beijing, Beijing, China.

3. Laboratory for Microstructures, Shanghai University, Shanghai, China.

4. X-Ray Science Division, Advanced Photon Source, Argonne National Laboratory, Argonne, IL, USA.

5. Department of Materials Science and Engineering, University of Tennessee, Knoxville, TN, USA.

6. Department Microstructure Physics and Alloy Design, Max-Planck-Institut für Eisenforschung, Düsseldorf, Germany.

7. Key Laboratory for Anisotropy and Texture of Materials (Ministry of Education), School of Material Science and Engineering, Northeastern University, Shenyang, China.

Abstract

High-entropy herringbone alloy Eutectic high-entropy alloys have a dual phase structure that could be useful for optimizing a material’s properties. Shi et al . found that directional solidification of an aluminum-iron-cobalt-nickel eutectic high-entropy alloy created a herringbone-patterned microstructure that was extremely resistant to fracture (see the Perspective by An). The structure contained lamellae of hard and soft phases, and the cracks that formed in the hard phase were arrested at the boundary of the soft phase. This, along with stress transfer, allowed a tripling of the maximal elongation while retaining high strength. —BG

Funder

National Key Research and Development Program of China, National Natural Science Foundation of China

National Science Foundation of China (NSFC), Funds for Creative Research Groups of China

Publisher

American Association for the Advancement of Science (AAAS)

Subject

Multidisciplinary

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