Evaluation of lubrication potential of Ni3Al-WS2-Cu-doped hBN self-lubricating hybrid composites

被引：3

作者：

Mahto, Nitish Kumar ^{[1
]}

Tyagi, Rajnesh ^{[1
]}

Sinha, Sanjay Kumar ^{[1
]}

Kaur, Manpreet ^{[2
]}

机构：

[1] Indian Inst Technol BHU, Dept Mech Engn, Varanasi 221005, India

[2] Baba Banda Singh Bahadur Engn Coll, Fathehgarh Sahib 140407, India

来源：

TRIBOLOGY INTERNATIONAL | 2023年 / 189卷

关键词：

Intermetallic; Sliding wear; High temperature; Solid lubricants; Tribo-chemistry; NI3AL MATRIX COMPOSITES; TRIBOLOGICAL PROPERTIES; TEMPERATURE; BEHAVIOR; MICROSTRUCTURE; GRAPHENE; NICKEL; SILVER; WS2;

D O I：

10.1016/j.triboint.2023.108898

中图分类号：

TH [机械、仪表工业];

学科分类号：

0802 ;

摘要：

The lubricating potential of WS2 and Cu-doped hBN nanosheets (Cu-hBN) as solid lubricants in Ni3Al-based composites has been evaluated by conducting wear tests from room temperature (RT) to 800 degrees C. The results indicate a decreasing trend of coefficient of friction with increasing temperature from RT to 800 degrees C with Ni3Al showing the highest wear rate as well as coefficient of friction (0.65-0.42) and Ni3Al-WS2-Cu-hBN (0.44-0.18) showing the lowest at all the temperatures except at RT, 200 and 400 degrees C, at which Ni3Al-WS2 has the lowest coefficient of friction. The improved performance of Ni3Al-WS2-Cu-hBN reflects a cooperative synergy between WS2 and Cu-hBN at temperatures beyond 400 degrees C, whereas the combination did not reveal any assistive action below 400 degrees C.

引用

页数：19