Effect of Tribo-Oxide Layers on Wear Properties and Coefficient of Friction of TC4 Alloy in Fretting

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	Effect of Tribo-Oxide Layers on Wear Properties and Coefficient of Friction of TC4 Alloy in Fretting
	He Yanni 1; Yu Shurong 1; Li Shuxin 2; Chen Qiang 1
刊名	RARE METAL MATERIALS AND ENGINEERING
	2021-04
卷号	50 期号:4 页码:1417-1424
关键词	TC alloy fretting wear tribo-oxide layer severe-mild wear transition coefficient friction
ISSN号	1002-185X
英文摘要	The gross slip regimes of TC4 alloy against with various counterface materials and temperatures at critical experimental conditions were selected to study the effect of formation of tribo-oxide layers on wear properties and coefficient of friction (COF) of TC4 alloy in fretting wear. Results show that irrespective of tribo-pairs, the coefficient of friction of TC4 alloy has undergone periodic evolutions at room temperature, no tribo-oxide layers have been produced on wearing surfaces and the wear rates are higher. When the samples are heated to 260 degrees C, the COF of TC4/GCr15 tribo-pair appears the earliest transition from a concave-convex dynamic to an approximately straight-line stable state, the earliest severe-mild wear transition occurs and tribo-oxide layer has generated, resulting in the wear rate reduces significantly. However, TC4/Si3N4 and TC4/AI(2)O(3) tribo-pairs have no obviously tribo-oxide layers formed, and the wear rate climbs sharply to the maximum value. Severe-mild wear transitions of TC4 alloy against with various counterface materials occur while the samples are heated to 450 degrees C, the tribo-oxide layers differed from the matrix are formed on worn surface and the wear rates are lower than room temperature, reaching a minimum value. The excellent wear properties of TC4 alloy in fretting at elevated temperature are attributed to the generation of the formation of tribo-oxide layers with uniform distribution, continuous compressed and good adhesion. The wear mechanism of TC4 alloy is dominated by adhesive and abrasive wear before the severe-mild transition, while controlled by oxidative with slightly abrasive wear after the transition beginning.
WOS研究方向	Materials Science ; Metallurgy & Metallurgical Engineering
语种	英语
出版者	NORTHWEST INST NONFERROUS METAL RESEARCH
WOS记录号	WOS:000651535100041
内容类型	期刊论文
源URL	[http://ir.lut.edu.cn/handle/2XXMBERH/148781]
专题	兰州理工大学
作者单位	1.Lanzhou Univ Technol, Coll Petrochem Technol, Lanzhou 730050, Peoples R China; 2.Ningbo Univ, Fac Mech Engn & Mech, Ningbo 315211, Peoples R China
推荐引用方式 GB/T 7714	He Yanni,Yu Shurong,Li Shuxin,et al. Effect of Tribo-Oxide Layers on Wear Properties and Coefficient of Friction of TC4 Alloy in Fretting[J]. RARE METAL MATERIALS AND ENGINEERING,2021,50(4):1417-1424.
APA	He Yanni,Yu Shurong,Li Shuxin,&Chen Qiang.(2021).Effect of Tribo-Oxide Layers on Wear Properties and Coefficient of Friction of TC4 Alloy in Fretting.RARE METAL MATERIALS AND ENGINEERING,50(4),1417-1424.
MLA	He Yanni,et al."Effect of Tribo-Oxide Layers on Wear Properties and Coefficient of Friction of TC4 Alloy in Fretting".RARE METAL MATERIALS AND ENGINEERING 50.4(2021):1417-1424.