Tribo-physical and tribo-chemical aspects of WC-based cermet/Ti3SiC2 tribo-pair at elevated temperatures

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	Tribo-physical and tribo-chemical aspects of WC-based cermet/Ti3SiC2 tribo-pair at elevated temperatures
	Yang SR(杨生荣); Meng JH(孟军虎); Meng JH(孟军虎); Lv JJ(吕晋军); Ren SF(任书芳); Wang JB(王静波)
刊名	Tribology International
	2010
卷号	43 页码:512-517
关键词	Ti3SiC2 Tribo-physical changes Tribo-chemical reactions PbWO4
ISSN号	0301-679X
通讯作者	孟军虎
中文摘要	The tribological behaviors of tungsten carbide (WC) based cermet/Ti3SiC2 tribo-pair at elevatedtemperatures were investigated. Lead oxide (PbO) was added as a solid lubricant. The tribo-physical andtribo-chemical changes on sliding surfaces were studied in detail. The results indicated that adhesiveand abrasive wear due to removal of metallic binder and pullout of grains were the dominant wearmechanisms at room temperature. At high temperature, tribo-physical changes (i.e. mechanical mixtureor sintering) and tribo-chemical reactions including complex reaction and oxidations were induced byfrictional heat combined with high environmental temperature. As a result PbWO4 was formed as areaction product and acted as a solid lubricant. PbWO4 and tribo-oxides along with the physicallychanged layer on the sliding surfaces were favorable to reduce wear of both materials. At hightemperature, the wear mechanism varied from adhesive and abrasive wear at room temperature tolubrication by tribo-layer containing PbWO4, tribo-oxides, and sinters at high temperatures.
学科主题	材料科学与物理化学
收录类别	SCI
资助信息	the National Natural Science Foundation of China (50675216);the West Doctor Program of the Chinese Academy of Sciences;the Knowledge Innovation Program of the Chinese Academy of Sciences
语种	英语
公开日期	2012-09-28
内容类型	期刊论文
源URL	[http://210.77.64.217/handle/362003/1069]
专题	兰州化学物理研究所_固体润滑国家重点实验室兰州化学物理研究所_先进润滑与防护材料研究发展中心
通讯作者	Meng JH(孟军虎); Meng JH(孟军虎)
推荐引用方式 GB/T 7714	Yang SR,Meng JH,Meng JH,et al. Tribo-physical and tribo-chemical aspects of WC-based cermet/Ti3SiC2 tribo-pair at elevated temperatures[J]. Tribology International,2010,43:512-517.
APA	杨生荣,孟军虎,孟军虎,吕晋军,任书芳,&王静波.(2010).Tribo-physical and tribo-chemical aspects of WC-based cermet/Ti3SiC2 tribo-pair at elevated temperatures.Tribology International,43,512-517.
MLA	杨生荣,et al."Tribo-physical and tribo-chemical aspects of WC-based cermet/Ti3SiC2 tribo-pair at elevated temperatures".Tribology International 43(2010):512-517.