Research on nano-scratching behavior of TiZrHfBeCu(Ni) high entropy bulk metallic glasses

被引：20

作者：

Gong, Pan ^{[1
]}

Li, Fangwei ^{[1
]}

Deng, Lei ^{[1
]}

Wang, Xinyun ^{[1
]}

Jin, Junsong ^{[1
]}

机构：

[1] Huazhong Univ Sci & Technol, State Key Lab Mat Proc & Die & Mould Technol, 1037 Luoyu Rd, Wuhan 430074, Hubei, Peoples R China

来源：

JOURNAL OF ALLOYS AND COMPOUNDS | 2020年 / 817卷

基金：

美国国家科学基金会; 中国国家自然科学基金;

关键词：

Bulk metallic glasses; High entropy alloys; Nanoscratch; Tribological properties; CRYSTALLIZATION KINETICS; WEAR BEHAVIOR; CREEP CHARACTERISTICS; ABRASIVE WEAR; NANOINDENTATION; ALLOYS; INDENTATION; RESISTANCE; COMPOSITE; FRICTION;

D O I：

10.1016/j.jallcom.2019.153240

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：

Nanoscratch tests have been conducted to study the tribological behavior of TiZrHfBeCu(Ni) high entropy bulk metallic glasses (HE-BMGs). A classic Zr-based BMG, vit-1 alloy, has been selected as a reference. For all the four adopted alloys, the effect of scratch velocity on the nano-scratch behavior is not obvious. It is found that TiZrHfBeCu(Ni) HE-BMGs possess better nanoscratch resistance than that of vit-1 alloy. Moreover, with the Ni content increasing, the glass transition temperature and hardness increase while the free volume content decreases, resulting in a better nanoscratch resistance. The addition of Ni also changes accumulation mode of the removed chips during the scratching process. Based on the variation of coefficient of friction (COF) during the scratching process, all the four alloys exhibit similar scratching mechanisms, which have been explained in detail. (C) 2019 Elsevier B.V. All rights reserved.

引用

页数：9

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