Effects of Mo content on the microstructure and mechanical properties of TiNbZrMox high-entropy alloys

被引：30

作者：

Chen, Gengbiao ^{[1
,2
]}

Yan, Hongwei ^{[1
]}

Wang, Zhe ^{[3
]}

Wang, Kaiming ^{[1
]}

Yves, Ngabonziza Irumva ^{[1
]}

Tong, Yonggang ^{[1
,2
]}

机构：

[1] Changsha Univ Sci & Technol, Coll Automot & Mech Engn, Changsha 410114, Peoples R China

[2] Changsha Univ Sci & Technol, Hunan Prov Key Lab Safety Design & Reliabil Techn, Changsha 410114, Peoples R China

[3] Changsha Univ Sci & Technol, Sch Foreign Studies, Changsha 410114, Peoples R China

来源：

JOURNAL OF ALLOYS AND COMPOUNDS | 2023年 / 930卷

关键词：

High-entropy alloys; Microstructure; Mechanical properties; Processing; Wear performance; TI; NB; PERFORMANCE; BEHAVIOR;

D O I：

10.1016/j.jallcom.2022.167373

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

The single-phase TiNbZrMox (x = 0, 0.3, 0.5, 0.7, 1) high-entropy alloys (HEAs) were prepared by arc melting. The relation between molybdenum, microstructure, mechanical properties and wear resistance was investigated by X-ray diffractometer (XRD), scanning electron microscope (SEM), universal tensile tester, hardness tester, friction tester, and wear tester. The results showed that TiNbZrMox alloys were composed of a single BCC phase. With the increase of Mo elements, the crystallite size of the as-cast alloy decreased first and then increased, both the alloy strength and hardness were increased and compressive strain plasticity was decreased. TiNbZrMo0.5 has the best comprehensive performance with a yield strength of 1.0 GPa, compressive strength of 1.3 GPa, and hardness of 429 HV; compared with TiNbZrMo0, yield strength increased by 77.32%, compressive strength increased by 25.14%, and hardness increased by 70.24%; and its specific wear rate decreased by 50%, while it's compressive plasticity only decreased by 5%. (C) 2022 Elsevier B.V. All rights reserved.

引用

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