High temperature friction and wear behavior of Mo - Si - B/ZrB 2 composites

被引：6

作者：

Wang, Xiaowen ^{[1
,2
]}

Tan, Hui ^{[1
]}

Zhu, Zongxiao ^{[2
]}

Wang, Linjun ^{[2
]}

Zhu, Shengyu ^{[1
]}

Cheng, Jun ^{[1
]}

Guo, Jie ^{[1
,3
]}

Yang, Jun ^{[1
,3
]}

机构：

[1] Chinese Acad Sci, State Key Lab Solid Lubricat, Lanzhou Inst Chem Phys, Lanzhou 730000, Peoples R China

[2] Lanzhou Univ Technol, Sch Mech & Elect Engn, Lanzhou 730050, Peoples R China

[3] Shandong Lab Adv Mat & Green Mfg Yantai, Yantai 264000, Peoples R China

来源：

TRIBOLOGY INTERNATIONAL | 2024年 / 196卷

基金：

中国国家自然科学基金;

关键词：

High temperature; ZrB2; ceramic; Wear mechanism; Tribo-layer; Self-lubricity; TRIBOLOGICAL BEHAVIOR; OXIDATION RESISTANCE; FRACTURE-TOUGHNESS; MECHANICAL-PROPERTIES; B ALLOYS; MICROSTRUCTURE; ZRB2;

D O I：

10.1016/j.triboint.2024.109694

中图分类号：

TH [机械、仪表工业];

学科分类号：

0802 ;

摘要：

The Mo-Si-B alloys with good wear resistance are prominent for high -temperature applications. In this work, the effects of ZrB 2 content and test temperature on the tribological properties of the Mo-Si-B/ZrB 2 composites at 25-800 degrees C were investigated. It indicates that the composites show an enhanced wear resistance, which can be ascribed to the improved hardness and formation of Zr-rich borosilicate layer by introducing ZrB 2 particles. The main wear mechanism is abrasive wear accompanies with adhesive wear at 25-400 degrees C, where ZrB 2 addition can reduce the wear loss. And adhesive wear dominates at 600-800 degrees C, where the formed tribo-layer can provide a good self -lubricity and is beneficial for improving the wear resistance of the composites.

引用

页数：10

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