铸造 WMoTaNb 高熵合金的显微结构和热性能

IF 4.3 3区材料科学 Q2 MATERIALS SCIENCE, MULTIDISCIPLINARY

Materials Chemistry and Physics Pub Date : 2024-10-17 DOI:10.1016/j.matchemphys.2024.130054

Bang Xiao , Wenpeng Jia , Nan Liu , Jian Wang , Lian Zhou

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引用次数: 0

摘要

WMoTaNb RHEA 是利用真空悬浮熔化技术制造的。对热导率、热膨胀和 TG-DSC 实验结果的分析表明，铸造的 WMoTaNb RHEA 在 1400 ℃ 以上的高温条件下具有优异的稳定性。这一结果从实验上解释了之前关于相和微结构稳定性的研究。该研究可为高稳定性提供实验证据，并有助于解释熔铸 WMoTaNb RHEA 在高温下的高温力学行为。

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Microstructure and thermal properties of the cast WMoTaNb high-entropy alloy

WMoTaNb RHEA has been manufactured using vacuum levitation melting. The as-cast WMoTaNb RHEA has equiaxed grains with a mean grain size of 71.4 μm, and the analysis of the experimental results of thermal conductivity, thermal expansion, and TG-DSC suggests that the as-cast WMoTaNb RHEA has excellent stability at elevated temperature above 1400 °C. This result experimentally explains the previous research on phase and microstructure stability. This study can provide experimental evidence for the high-level stability and help explain the elevated temperature mechanical behaviors of the as-cast WMoTaNb RHEA at elevated temperatures.

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来源期刊

Materials Chemistry and Physics 工程技术-材料科学：综合

CiteScore

8.70

自引率

4.30%

发文量

1515

审稿时长

69 days

期刊介绍： Materials Chemistry and Physics is devoted to short communications, full-length research papers and feature articles on interrelationships among structure, properties, processing and performance of materials. The Editors welcome manuscripts on thin films, surface and interface science, materials degradation and reliability, metallurgy, semiconductors and optoelectronic materials, fine ceramics, magnetics, superconductors, specialty polymers, nano-materials and composite materials.