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
收藏
页数：10
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