Study on Composite Elastic Modulus of Elevated Temperature Diffusion Self-lubricating Material

2018 3rd International Conference on Insulating Materials, Material Application and Electrical Engineering

材料科学;无线电电子学;电工学

Xie, Fang^1 ; Yan, Songshan^2 ; Lu, Yan^3 ; Hu, Rui^3 ; Xu, Chunxia^3

School of Mechanical and Automotive Engineering, Nanyang Institute of Technology, Nanyang, China^1

School of Mechanical and Electronic Engineering, Wuhan University of Technology, Wuhan, China^2

Key Laboratory of Metallurgical Equipment and Control Technology, Wuhan University of Science and Technology, Wuhan, China^3

关键词: Composite elastic modulus;    Composite modeling;    Elevated temperature;    Lubricant content;    Mori Tanaka method;    Oil characteristics;    Self-lubricating material;    Structural characteristics;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/452/2/022058/pdf
DOI  :  10.1088/1757-899X/452/2/022058

学科分类：材料科学（综合）

来源: IOP

【 摘 要 】

Based on the pore structural characteristics of elevated temperature diffusion self-lubricating material, its two-phases composite model was established, and the composite elastic modulus of the materials was predicted by Mori-Tanaka method, as well as the results were compared with test data of Yaman in order to verify the validity of the proposed model. Moreover, the effects of lubricating oil characteristics on the composite elastic modulus of the materials were explored by taking the 4129 type of aerospace lubricating oil as an example. The research shows that the results calculated by the model agree well with the test data of Yaman, and the average error is less than 5%, which proves that the model can predict the composite elastic modulus of elevated temperature diffusion self-lubricating materials accurately. In addition, the composite elastic modulus of the materials decreases linearly with the increase of porosity, which indicates that the increase of lubricant content will cause a decline in the overall strength of the materials. Under the condition of oil lubrication, the composite elastic modulus of the materials decreases with the increase of temperature and velocity, and increases with the increase of the load.