Effect of the micro-structure evolution of friction layer on the sliding tribology behavior of TiAl-10 Wt.% Ag at 16 N-0.5 m/s
Industrial Lubrication and Tribology
ISSN: 0036-8792
Article publication date: 2 October 2018
Issue publication date: 19 November 2018
Abstract
Purpose
This paper aims to study the micro-structure evolution of friction layers to optimize the friction and wear behaviors of TiAl-based material. It further enlarges the scope of using TiAl alloys and increase in the service life of TiAl alloy-made mechanical components, especially under some extreme conditions.
Design/methodology/approach
To study the structure evolution of friction layers, the HT-1000 tribometer is used to study the friction and wear properties of as-prepared samples. With the assistance of field emission scanning electron microscopy and an electron probe micro-analyzer, the stratified structures in cross-sections and a surface morphology of the wear scars are well characterized. A ST400 surface profiler helps in better understanding of the three-dimensional texture profiles of wear scars. X-ray diffractometer (XRD) is also used to analyze phases in the as-prepared samples.
Findings
An analysis method on the micro-structure evolution can provide better views to understand the influence of friction layers on the tribological behavior, at different wear stages. It finds that the micro-structure evolution of friction layers has an immediate effect on the friction coefficients and wear rates of TiAl-based material. It also proves to be a useful tool for evaluating the behaviors in friction and wear of TiAl-based material.
Originality/value
The findings of this paper provide better assistance to explore the effect of friction layers on the friction and wear behaviors of TiAl-based materials. The results help in deep understanding of the micro-structure evolution of friction layers. It also increases the service life of TiAl-based mechanical components.
Keywords
Acknowledgements
The research is supported by the National Natural Science Foundation of China (51275370). The authors are also appreciative to Nanjing XFNANO Materials Tech Co., Ltd for its kind help with powders.
Citation
Yang, K., Ma, H., Liu, X. and Zhang, Y. (2018), "Effect of the micro-structure evolution of friction layer on the sliding tribology behavior of TiAl-10 Wt.% Ag at 16 N-0.5 m/s", Industrial Lubrication and Tribology, Vol. 70 No. 9, pp. 1676-1683. https://doi.org/10.1108/ILT-09-2017-0249
Publisher
:Emerald Publishing Limited
Copyright © 2018, Emerald Publishing Limited