Journal
TRIBOLOGY INTERNATIONAL
Volume 145, Issue -, Pages -Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.triboint.2020.106177
Keywords
Titanium matrix composite; Microstructure; Tribological behavior; Transfer layer
Categories
Funding
- National Key Research and Development Program of China [2016YFB0301201]
- Major Science and Technology Special Plan of Yunnan [2018ZE013]
- Foundation of Liaoning Province Education Administration [LQGD2019001]
- Natural Science Foundation of Liaoning Province [20180510056, 2019-ZD-0216]
- National Natural Science Foundation of China [51401129, 51871075, 51875365, 51901029]
- China Postdoctoral Science Foundation [2019M653337]
- National Science Foundation [DMR-1611180, 1809640]
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To enhance wear properties of titanium alloys, in situ titanium matrix composites (TMCs) were synthesized by a melting cast method with (TiC + TiB) volume fractions of 0, 2, 4, 6, 8, and 10%. The results indicated that tribological properties of TMCs were increased owing to the dispersed distribution of (TiC + TiB) reinforcements, which improved the ability to resist the surface shear stress. Moreover, the stable transfer layer formed during wear reduced the shear strength and limited the direct interaction at tribo-pair interfaces to enhance surface hardness and wear resistance effectively. Consequently, the wear mechanism appeared to transitioned from the severe adhesive and oxidative wear gradually to the slight adhesion, abrasive, and oxidative wear along with reinforcements content increased.
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