Enhancing the Yield Strength of Casting Eutectic High-Entropy Alloys via Coherent Precipitates

Xin Liu; Zhongsheng Yang; Dingcong Cui; Qingfeng Wu; Zhijun Wang; Junjie Li; Jincheng Wang; Feng He

doi:10.1007/s11661-023-07225-3

Enhancing the Yield Strength of Casting Eutectic High-Entropy Alloys via Coherent Precipitates

Xin Liu, Zhongsheng Yang, Dingcong Cui, Qingfeng Wu, Zhijun Wang, Junjie Li, Jincheng Wang, Feng He

School of Materials Sience and Engineering

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

7 Scopus citations

Abstract

Eutectic high-entropy alloys (EHEAs) have shown good as-cast tensile strength and ductility due to the combination of soft and hard phases. However, the yield strengths of casting EHEAs are less competitive. We here induced precipitation hardening to overcome the above challenge in the casting Ni₄₄Co₁₀Cr₁₂Fe₁₅Al₁₇W₂ EHEA. L1₂ and BCC dual-coherent phases precipitate from the FCC/B2 eutectics of Ni₄₄Co₁₀Cr₁₂Fe₁₅Al₁₇W₂, leading to an excellent yield strength of 805 ± 45 MPa with uniform elongation of 17.7 ± 0.9 pct.

Original language	English
Pages (from-to)	4620-4624
Number of pages	5
Journal	Metallurgical and Materials Transactions A: Physical Metallurgy and Materials Science
Volume	54
Issue number	12
DOIs	https://doi.org/10.1007/s11661-023-07225-3
State	Published - Dec 2023

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title = "Enhancing the Yield Strength of Casting Eutectic High-Entropy Alloys via Coherent Precipitates",

abstract = "Eutectic high-entropy alloys (EHEAs) have shown good as-cast tensile strength and ductility due to the combination of soft and hard phases. However, the yield strengths of casting EHEAs are less competitive. We here induced precipitation hardening to overcome the above challenge in the casting Ni44Co10Cr12Fe15Al17W2 EHEA. L12 and BCC dual-coherent phases precipitate from the FCC/B2 eutectics of Ni44Co10Cr12Fe15Al17W2, leading to an excellent yield strength of 805 ± 45 MPa with uniform elongation of 17.7 ± 0.9 pct.",

author = "Xin Liu and Zhongsheng Yang and Dingcong Cui and Qingfeng Wu and Zhijun Wang and Junjie Li and Jincheng Wang and Feng He",

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T1 - Enhancing the Yield Strength of Casting Eutectic High-Entropy Alloys via Coherent Precipitates

AU - Liu, Xin

AU - Yang, Zhongsheng

AU - Cui, Dingcong

AU - Wu, Qingfeng

AU - Wang, Zhijun

AU - Li, Junjie

AU - Wang, Jincheng

AU - He, Feng

PY - 2023/12

Y1 - 2023/12

N2 - Eutectic high-entropy alloys (EHEAs) have shown good as-cast tensile strength and ductility due to the combination of soft and hard phases. However, the yield strengths of casting EHEAs are less competitive. We here induced precipitation hardening to overcome the above challenge in the casting Ni44Co10Cr12Fe15Al17W2 EHEA. L12 and BCC dual-coherent phases precipitate from the FCC/B2 eutectics of Ni44Co10Cr12Fe15Al17W2, leading to an excellent yield strength of 805 ± 45 MPa with uniform elongation of 17.7 ± 0.9 pct.

AB - Eutectic high-entropy alloys (EHEAs) have shown good as-cast tensile strength and ductility due to the combination of soft and hard phases. However, the yield strengths of casting EHEAs are less competitive. We here induced precipitation hardening to overcome the above challenge in the casting Ni44Co10Cr12Fe15Al17W2 EHEA. L12 and BCC dual-coherent phases precipitate from the FCC/B2 eutectics of Ni44Co10Cr12Fe15Al17W2, leading to an excellent yield strength of 805 ± 45 MPa with uniform elongation of 17.7 ± 0.9 pct.

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DO - 10.1007/s11661-023-07225-3

M3 - 文章

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SN - 1073-5623

VL - 54

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EP - 4624

JO - Metallurgical and Materials Transactions A: Physical Metallurgy and Materials Science

JF - Metallurgical and Materials Transactions A: Physical Metallurgy and Materials Science

IS - 12

ER -

Enhancing the Yield Strength of Casting Eutectic High-Entropy Alloys via Coherent Precipitates

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