As-cast Tix(AlVCr)100−x light-weight medium entropy alloys with high strength and uniform compressive plasticity

IF 4.7 1区材料科学 Q1 METALLURGY & METALLURGICAL ENGINEERING

Transactions of Nonferrous Metals Society of China Pub Date : 2025-01-01 DOI:10.1016/S1003-6326(24)66674-4

Ming-jie KAI , Yu-jie MA , Xiao-tian WANG , Liang CHENG , Jian-bo HU , Yao-yao HU , Tai-ran XU , Gui-jiang LI , Xiang-kang MENG , Zhen-hua CAO

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引用次数: 0

Abstract

The effect of Ti content on the microstructure and mechanical properties of as-cast light-weight Ti_x(AlVCr)_100−x medium entropy alloys was studied by compressive tests, X-ray diffraction, scanning electron microscopy and transmission electron microscopy. The results suggest that yield strength increases and then decreases with the increment of Ti content. The Ti₆₀(AlVCr)₄₀ alloy has the best combination of high strength of 1204 MPa and uniform plastic strain of 70%, possessing a high specific yield strength of 255 MPa·cm³/g. The enhancement of strength is mainly attributed to the synergic effects of solid-solution and coherent nano-precipitation strengthening, while dislocation motion such as dislocation pinning, entanglement and dislocation cells significantly increases the strain-hardening capacity.

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来源期刊

Transactions of Nonferrous Metals Society of China 工程技术-冶金工程

CiteScore

7.40

自引率

17.80%

发文量

8456

审稿时长

3.6 months

期刊介绍： The Transactions of Nonferrous Metals Society of China (Trans. Nonferrous Met. Soc. China), founded in 1991 and sponsored by The Nonferrous Metals Society of China, is published monthly now and mainly contains reports of original research which reflect the new progresses in the field of nonferrous metals science and technology, including mineral processing, extraction metallurgy, metallic materials and heat treatments, metal working, physical metallurgy, powder metallurgy, with the emphasis on fundamental science. It is the unique preeminent publication in English for scientists, engineers, under/post-graduates on the field of nonferrous metals industry. This journal is covered by many famous abstract/index systems and databases such as SCI Expanded, Ei Compendex Plus, INSPEC, CA, METADEX, AJ and JICST.