Effects of deformation and annealing on microstructure and mechanical properties of CoCrFe8NiMn alloy

IF 3.5 3区材料科学 Q2 MATERIALS SCIENCE, MULTIDISCIPLINARY

Journal of Materials Science Pub Date : 2025-02-09 DOI:10.1007/s10853-025-10701-3

Menglu Jian, Min Liu, Qiannan Hu, Fan Yang, Zhanyong Wang, Fangjie Li, Han Hu, Qin Shen

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引用次数: 0

Abstract

Effects of deformation and annealing on the microstructure and mechanical properties on the CoCrFe8NiMn (hereinafter to be referred as Fe8) medium-entropy alloy were systematically investigated. Two deformation-induced phase transformations (FCC-to-BCC and FCC-to-HCP) occur during the cold-rolling process, while the reverse phase transformations (BCC-to-FCC and HCP-to-FCC) take place undergoing the annealing treatment. A good combination of strength (995 MPa) and plasticity (28.1%) for this alloy was obtained after rolling and annealing. Microstructural analysis confirms the FCC, HCP and BCC phases in this alloy obey specific orientation relationships. Electron backscatter diffraction results reveal that two strain-induced phase transformations (FCC-to-BCC and FCC-to-HCP) occur in the annealed Fe8 alloy sample during the tensile deformation, resulting in the transformation-induced plasticity (TRIP) effect. Thereby, the annealed Fe8 alloy achieves an optimal strength-plasticity balance and becomes a potential candidate used for engineering material.

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来源期刊

Journal of Materials Science 工程技术-材料科学：综合

CiteScore

7.90

自引率

4.40%

发文量

1297

审稿时长

2.4 months

期刊介绍： The Journal of Materials Science publishes reviews, full-length papers, and short Communications recording original research results on, or techniques for studying the relationship between structure, properties, and uses of materials. The subjects are seen from international and interdisciplinary perspectives covering areas including metals, ceramics, glasses, polymers, electrical materials, composite materials, fibers, nanostructured materials, nanocomposites, and biological and biomedical materials. The Journal of Materials Science is now firmly established as the leading source of primary communication for scientists investigating the structure and properties of all engineering materials.