Microstructure and Tribological Properties of a Ni-base Laser Cladding on Aluminum Bronze

doi:10.4028/www.scientific.net/AMR.160-162.100

CORC > 兰州理工大学 > 兰州理工大学 > 省部共建有色金属先进加工与再利用国家重点实验室

	Microstructure and Tribological Properties of a Ni-base Laser Cladding on Aluminum Bronze
	Xu, Jianlin; Yang, Bo; Ju, Chunyan; Zhang, Lihui
	2011
关键词	Aluminum bronze Laser Cladding Ni-base Cladding Tribological Properties
卷号	160-162
DOI	10.4028/www.scientific.net/AMR.160-162.100
页码	100-105
英文摘要	In the paper, a Ni-base composite cladding was cladded on the surface of QA19-4 aluminum bronze by laser cladding technology, as well as its microstructure and tribological properties are studied. The results show that the microstructure of laser cladding is affected by solidification rate, and its wear behavior mainly lies on microstructure and lubrication condition. The microstructure of laser cladding is made up of cellular crystal and dendrite crystal. The microstructure of the surface cladding is cellular crystal, the middle section is crassitude dendrite crystal, and the bottom is coarse dendrite crystal and cellular crystal. Under dry friction condition, wear mechanism is abrasive wear and shedding strengthen phase, which has higher volume's wear rate. Under lubricate condition, wear mechanism is abrasive wear and adhere wear, which has lower volume's wear rate than that of dry friction. The average friction coefficient of the cladding under dry and lubricate condition are 0.39 and 0.15, the volume's wear rate are 7.88 X 10(-8)mm(3)/N.mm and 1.56 X 10(-9)mm(3)/ N.mm, respectively. Therefore, the cladding has favorable wear resistance property under lubricate condition, and can be used as an excellent wearable material.
会议录	MATERIALS SCIENCE AND ENGINEERING APPLICATIONS, PTS 1-3
会议录出版者	TRANS TECH PUBLICATIONS LTD
会议录出版地	LAUBLSRUTISTR 24, CH-8717 STAFA-ZURICH, SWITZERLAND
语种	英语
WOS研究方向	Engineering ; Materials Science
WOS记录号	WOS:000289504000018
内容类型	会议论文
源URL	[http://119.78.100.223/handle/2XXMBERH/37445]
专题	省部共建有色金属先进加工与再利用国家重点实验室材料科学与工程学院
通讯作者	Xu, Jianlin
作者单位	Lanzhou Univ Technol, State Key Lab Gansu Adv Nonferrous Met Mat, Lanzhou 730050, Peoples R China
推荐引用方式 GB/T 7714	Xu, Jianlin,Yang, Bo,Ju, Chunyan,et al. Microstructure and Tribological Properties of a Ni-base Laser Cladding on Aluminum Bronze[C]. 见:.