Enhancing the mechanical properties of casting eutectic high entropy alloys with Mo addition

Zhongsheng Yang; Zhijun Wang; Qingfeng Wu; Tao Zheng; Purui Zhao; Jinkai Zhao; Jiayin Chen

doi:10.1007/s00339-019-2506-z

Enhancing the mechanical properties of casting eutectic high entropy alloys with Mo addition

Zhongsheng Yang
, Zhijun Wang
, Qingfeng Wu
, Tao Zheng
, Purui Zhao
, Jinkai Zhao
, Jiayin Chen

School of Materials Sience and Engineering

Northwestern Polytechnical University Xian

Research output: Contribution to journal › Article › peer-review

77 Scopus citations

Abstract

Eutectic high entropy alloys (EHEAs) exhibit excellent mechanical properties in the as-cast condition. In this paper, Mo element was chosen to further strengthen the EHEAs by solid solution strengthening. The microstructures, phase compositions and mechanical properties of Co₃₀Cr₁₀Fe₁₀Al₁₈Ni_{32 − x}Mo_x (x = 0, 1, 2, 3) alloys were investigated. It was found that Mo acts as a solid solution strengthening element in the face-centered cubic (FCC) and body-centered cubic (BCC) phases. Meanwhile, Mo can promote the formation of the primary BCC phase. Among all alloys, the alloy with Mo (x = 2) has the highest fracture tensile strength of 1250 MPa and the acceptable elongation of 14%.

Original language	English
Article number	208
Journal	Applied Physics A: Materials Science and Processing
Volume	125
Issue number	3
DOIs	https://doi.org/10.1007/s00339-019-2506-z
State	Published - 1 Mar 2019

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title = "Enhancing the mechanical properties of casting eutectic high entropy alloys with Mo addition",

abstract = "Eutectic high entropy alloys (EHEAs) exhibit excellent mechanical properties in the as-cast condition. In this paper, Mo element was chosen to further strengthen the EHEAs by solid solution strengthening. The microstructures, phase compositions and mechanical properties of Co30Cr10Fe10Al18Ni32 − xMox (x = 0, 1, 2, 3) alloys were investigated. It was found that Mo acts as a solid solution strengthening element in the face-centered cubic (FCC) and body-centered cubic (BCC) phases. Meanwhile, Mo can promote the formation of the primary BCC phase. Among all alloys, the alloy with Mo (x = 2) has the highest fracture tensile strength of 1250 MPa and the acceptable elongation of 14\%.",

author = "Zhongsheng Yang and Zhijun Wang and Qingfeng Wu and Tao Zheng and Purui Zhao and Jinkai Zhao and Jiayin Chen",

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T1 - Enhancing the mechanical properties of casting eutectic high entropy alloys with Mo addition

AU - Yang, Zhongsheng

AU - Wang, Zhijun

AU - Wu, Qingfeng

AU - Zheng, Tao

AU - Zhao, Purui

AU - Zhao, Jinkai

AU - Chen, Jiayin

PY - 2019/3/1

Y1 - 2019/3/1

N2 - Eutectic high entropy alloys (EHEAs) exhibit excellent mechanical properties in the as-cast condition. In this paper, Mo element was chosen to further strengthen the EHEAs by solid solution strengthening. The microstructures, phase compositions and mechanical properties of Co30Cr10Fe10Al18Ni32 − xMox (x = 0, 1, 2, 3) alloys were investigated. It was found that Mo acts as a solid solution strengthening element in the face-centered cubic (FCC) and body-centered cubic (BCC) phases. Meanwhile, Mo can promote the formation of the primary BCC phase. Among all alloys, the alloy with Mo (x = 2) has the highest fracture tensile strength of 1250 MPa and the acceptable elongation of 14%.

AB - Eutectic high entropy alloys (EHEAs) exhibit excellent mechanical properties in the as-cast condition. In this paper, Mo element was chosen to further strengthen the EHEAs by solid solution strengthening. The microstructures, phase compositions and mechanical properties of Co30Cr10Fe10Al18Ni32 − xMox (x = 0, 1, 2, 3) alloys were investigated. It was found that Mo acts as a solid solution strengthening element in the face-centered cubic (FCC) and body-centered cubic (BCC) phases. Meanwhile, Mo can promote the formation of the primary BCC phase. Among all alloys, the alloy with Mo (x = 2) has the highest fracture tensile strength of 1250 MPa and the acceptable elongation of 14%.

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DO - 10.1007/s00339-019-2506-z

M3 - 文章

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JO - Applied Physics A: Materials Science and Processing

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ER -

Enhancing the mechanical properties of casting eutectic high entropy alloys with Mo addition

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