Study on tribological properties of new TiAl based self-lubricating alloys

2nd International Workshop on Materials Science and Mechanical Engineering

机械制造;材料科学

Wang, C.^1 ; Yang, L.Y.^1 ; Wang, S.R.^1 ; Feng, X.Z.^1 ; Yan, B.^1

School of Mechanical Engineering, University of Jinan, Jinan

250022, China^1

关键词: Adhesive wears;    Friction and wear characteristics;    Light weight;    Self-lubricating;    TiAl-based alloys;    Tribological properties;    Wear mechanisms;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/504/1/012006/pdf
DOI  :  10.1088/1757-899X/504/1/012006

学科分类：材料科学（综合）

来源: IOP

【 摘 要 】

The alloys are based on Ti-45Al-5Nb, Added different contents of TiC, Y2O3 and 62% BaF2-38%CaF2 to prepared new TiAl-based self-lubricating Alloys with excellent mechanical properties, excellent tribological properties and light weight. Investigated flexural strengths, fracture toughness, hardness, and densities of different compositions TiAl based self-lubricating alloys, as well as the friction and wear characteristics at 600C. The results show that the mechanical properties, tribological properties and physics of the new TiAl-based alloys are better with 5% TiC, 0.25% Y2O3, and 13% (62% BaF2-38%CaF2). The wear mechanism of the alloys is adhesive wear.