Effect of Square Texture on Tribological Properties of Nano-SiO2/POB-PTFE Composites

doi:10.1088/1742-6596/2160/1/012013

IR > 机电工程学院

	Effect of Square Texture on Tribological Properties of Nano-SiO2/POB-PTFE Composites
	Yang, Dongya; Xue, Wei; Xiong, Xinwen; Li, Weitao; Sun, Rongtuo; Li, Jiajun
	2022-01-10
会议名称	9th Annual International Conference on Material Science and Environmental Engineering, MSEE 2021
会议录名称	Journal of Physics: Conference Series
卷号	2160
期号	1
会议日期	November 26, 2021 - November 28, 2021
会议地点	Nanjing, Virtual, China
出版者	IOP Publishing Ltd
摘要	In order to study the seal design problem of piston rings in Stirling engine, on the basis of filling PTFE with Nano-SiO2 and POB and preparing the GCr15 contact surface with square texture by HM20-I laser marking machine, experiments were carried out on LSR-2M wear tester by indirect weighing and in-situ observation methods. Optical microscope (OM) and scanning electron microscope (SEM) were used to observe the evolution of Nano-SiO2/POB-PTFE composites' transfer film on contact surface. The results showed that the square texture would shorten the running-in and transitionary periods of the composites' tribological process, accelerate into the stationary period. The formation process of the composites' transfer film on the square textured contact surface was also different from smooth contact surface. Although the square texture would increase wear rate, its ability to store wear debris is more conducive to the formation of reliable, uniform and continuous transfer film with a same friction direction. Obviously, reasonable design of surface texture can effectively improve the wear resistance of sealing parts made of filling modified PTFE composites, thus providing theoretical guidance for the seal design of Stirling engine piston ring. © 2022 Institute of Physics Publishing. All rights reserved.
关键词	Engine pistons Friction Piston rings Scanning electron microscopy Silica Silicon Stirling engines Tribology Wear of materials Wear resistance Composite transfer film Contact surface Design problems In situ observations Laser marking machines Nano SiO 2 Piston rings Seal design Tribological properties Wear tester
DOI	10.1088/1742-6596/2160/1/012013
收录类别	EI
语种	英语
EI入藏号	20220611609167
EI主题词	Textures
EI分类号	549.3 Nonferrous Metals and Alloys excluding Alkali and Alkaline Earth Metals ; 612.1.1 Internal Combustion Engine Components ; 931 Classical Physics ; Quantum Theory ; Relativity ; 931.2 Physical Properties of Gases, Liquids and Solids ; 951 Materials Science
ISSN	1742-6588
引用统计	无
文献类型	会议论文
条目标识符	https://ir.lut.edu.cn/handle/2XXMBERH/158072
专题	机电工程学院
作者单位	School of Mechanical and Electrical Engineering, Lanzhou University of Technology, Lanzhou; 730050, China
第一作者单位	兰州理工大学
推荐引用方式 GB/T 7714	Yang, Dongya,Xue, Wei,Xiong, Xinwen,et al. Effect of Square Texture on Tribological Properties of Nano-SiO2/POB-PTFE Composites[C]:IOP Publishing Ltd,2022.