Microstructure and mechanical properties of Ni-based high temperature solid-lubricating composites

被引：32

作者：

Li, Fei ^{[1
,2
]}

Cheng, Jun ^{[1
]}

Zhu, Shengyu ^{[1
]}

Hao, Junying ^{[1
]}

Yang, Jun ^{[1
]}

Liu, Weimin ^{[1
]}

机构：

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

[2] Univ Chinese Acad Sci, Beijing 100039, Peoples R China

来源：

MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING | 2017年 / 682卷

基金：

中国国家自然科学基金;

关键词：

Mechanical properties; High temperature; Solid-lubricating; Ni-based composites; TRIBOLOGICAL PROPERTIES; ELEVATED-TEMPERATURES; SLIDING WEAR; ALLOY; TITANIUM; STRENGTH;

D O I：

10.1016/j.msea.2016.11.069

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

The poor mechanical properties are the main obstacle for the present solid-lubricating bulk materials in practical applications. In this work, the microstructure and high temperature mechanical properties of the solid lubricating NiCrMoAl-12.5 wt%Ag-xCaF(2)/BaF2 eutectic (x=5 or 10 wt%) composites, denoted as the 5 F and 10 F respectively, have been evaluated. Both the composites display superior tensile strength of above 300 MPa from room temperature (RT) to 600 degrees C and extraordinary compressive strength that is above 500 MPa at 800 degrees C. These superior properties make the composite particularly suitable for bearing applications where the compression strength is an engineering factor to be preferably considered.

引用

页码：475 / 481

页数：7

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