爆炸喷涂WC-Co/MoS2-Ni多层复合自润滑涂层的摩擦学行为

IMR OpenIR

	爆炸喷涂WC-Co/MoS2-Ni多层复合自润滑涂层的摩擦学行为
其他题名	Tribological Behavior of Multi-layered WC-Co/MoS2-Ni Self-lubricating Coating Fabricated by Detonation Gun Spraying
	王铁钢; 李柏松; 阎兵; 范其香; 刘艳梅; 宫骏; 孙超
	2017
发表期刊	材料工程
ISSN	1001-4381
卷号	45.0 期号:003 页码:73-79
摘要	采用爆炸喷涂技术研制WC-Co/MoS2-Ni多层复合自润滑涂层,系统研究涂层的微观结构、元素分布、结合强度和摩擦磨损性能。结果表明：在高温爆炸喷涂过程中,少量MoS2发生氧化分解,生成SO2气体,残留在涂层内的SO2气体可使局部形成微小孔洞。在摩擦测试中,WC-Co涂层在预磨阶段摩擦因数迅速上升,进入稳定阶段后,摩擦因数缓慢增加;而多层复合涂层的摩擦因数在经历预磨阶段迅速上升后,很快进入稳定阶段,直至表层WC-Co涂层被磨穿后,摩擦因数开始逐渐下降。添加自润滑涂层MoS2-Ni后,WC-Co涂层的内聚结合强度略有下降,但减摩效果显著,摩擦因数下降了约40%,耐磨性能略有提升。
其他摘要	The multilayered composite WC-Co/MoS2-Ni self-lubricating coatings were prepared by detonation gun spraying technology. The coating microstructure,element distribution,adhesive strength,and tribological properties were studied systematically.The results show that a little of MoS2 is oxidized and decomposed into gas of SO2 during the high-temperature spraying process.The SO2 left in the coating and can form into the micro porosities.The friction coefficient of the WC-Co coating first increases rapidly in the initial running-in phase,and then gradually increases slightly after entering into the steady-state phase;whereas the friction coefficient of multilayer composite coating steps in the steady-state phase soon and starts to decline gradually when the top WC-Co coating became perforated.By comparison,the coating cohesion declines slightly after adding the self-lubricating layer MoS2-Ni,but the friction coefficient decreases by about 40%,and the wear resistance is also improved slightly.
关键词	WC-Co/MoS2-Ni涂层自润滑涂层爆炸喷涂摩擦磨损
收录类别	CSCD
语种	中文
CSCD记录号	CSCD:5949319
引用统计	被引频次：6[CSCD] [CSCD记录]
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/87336
专题	中国科学院金属研究所
作者单位	中国科学院金属研究所
推荐引用方式 GB/T 7714	王铁钢,李柏松,阎兵,等. 爆炸喷涂WC-Co/MoS2-Ni多层复合自润滑涂层的摩擦学行为[J]. 材料工程,2017,45.0(003):73-79.
APA	王铁钢.,李柏松.,阎兵.,范其香.,刘艳梅.,...&孙超.(2017).爆炸喷涂WC-Co/MoS2-Ni多层复合自润滑涂层的摩擦学行为.材料工程,45.0(003),73-79.
MLA	王铁钢,et al."爆炸喷涂WC-Co/MoS2-Ni多层复合自润滑涂层的摩擦学行为".材料工程 45.0.003(2017):73-79.