Synergistic effect of Al and Ti micro-alloying in CoCrNi-based medium entropy alloy

Wentao Wu; Hua Fu; Zhaojiang Xue; Wenjie Fan; Bin Gan; Naisheng Jiang; Min Xia; Feng Zhao

Journal of Materials Research and Technology (Mar 2024)

Synergistic effect of Al and Ti micro-alloying in CoCrNi-based medium entropy alloy

Wentao Wu,
Hua Fu,
Zhaojiang Xue,
Wenjie Fan,
Bin Gan,
Naisheng Jiang,
Min Xia,
Feng Zhao

Affiliations

Wentao Wu: School of Materials Science and Engineering, University of Science and Technology Beijing, Beijing, 100083, China
Hua Fu: Institute for Advanced Study, Chengdu University, Chengdu, 610106, China; School of Mechanical Engineering, Chengdu University, Chengdu, 610106, China
Zhaojiang Xue: School of Materials Science and Engineering, University of Science and Technology Beijing, Beijing, 100083, China
Wenjie Fan: School of Materials Science and Engineering, University of Science and Technology Beijing, Beijing, 100083, China
Bin Gan: Beijing Key Laboratory of Advanced High Temperature Materials, Central Iron and Steel Research Institute, Beijing, 100081, China
Naisheng Jiang: School of Materials Science and Engineering, University of Science and Technology Beijing, Beijing, 100083, China
Min Xia: School of Materials Science and Engineering, University of Science and Technology Beijing, Beijing, 100083, China
Feng Zhao: Institute for Advanced Study, Chengdu University, Chengdu, 610106, China; School of Mechanical Engineering, Chengdu University, Chengdu, 610106, China; Corresponding authors. Institute for Advanced Study, Chengdu University, Chengdu, 610106, China.

Journal volume & issue: Vol. 29
pp. 1962 – 1970

Abstract

Read online

Recently, medium and high-entropy alloys with heterogeneous features have exhibited excellent synergistic effects of strength and toughness. In this work, we have produced a series of cast CrCoNi medium entropy alloys with various heterogeneous microstructures through Al and Ti elements micro-alloying. The heterogeneous microstructure and deformation mechanism are systematically analyzed. The result showed that Al/Ti ratio ranging from 0.5 to 2 has a significant influence on the microstructure and mechanical properties of the CrCoNi-based alloy. The present findings provided efficient guidance for developing of microstructure tailoring method in high and medium-entropy alloys.

Published in Journal of Materials Research and Technology

ISSN: 2238-7854 (Print); 2214-0697 (Online)
Publisher: Elsevier
Country of publisher: Netherlands
LCC subjects: Technology: Mining engineering. Metallurgy
Website: https://www.journals.elsevier.com/journal-of-materials-research-and-technology/

About the journal

Abstract

Keywords