Reciprocating Wear Performance and Interfacial Microstructure of a TiC-Ni2AlTi Cermet

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	Reciprocating Wear Performance and Interfacial Microstructure of a TiC-Ni2AlTi Cermet
	H. Zhang; X. H. Wang; M. Y. Liu; X. M. Fang
	2014
发表期刊	Tribology Letters
ISSN	1023-8883
卷号	55 期号:2 页码:211-218
摘要	Wear performance of a near equi-volume TiC-Ni2AlTi cermet with minor NiAl was evaluated by reciprocal sliding against Si3N4 balls. Both coefficient of friction (COF) and specific wear rate (SWR) decrease with the applied load in the range from 5 to 20 N, reaching minimums of 0.34 and 2.2 x 10(-6) mm(3)/Nm, respectively, at 20 N. To understand the novel wear resistance, interfacial microstructure was investigated. As indicated by high resolution transmission electron microscopy observations, the interfaces are either coherent (TiC/NiAl and Ni2AlTi/NiAl) or semi-coherent (TiC/Ni2AlTi). Depending on the grain size of Ni2AlTi, two types of TiC/Ni2AlTi interface were observed. For the micrometer or sub-micrometer sized Ni2AlTi grains, the orientation relationship (OR) is (111) TiC ayen (220) Ni2AlTi, [10] TiC ayen [10] Ni2AlTi, while for the Ni2AlTi grains in tens of nanometers, the OR is (020) TiC ayen (002) Ni2AlTi, [101] TiC ayen [010] Ni2AlTi. The strongly bonded coherent and semi-coherent interfaces impede the failure of the heterophase boundaries, which accounts for the excellent wear resistance of the newly prepared cermet.
部门归属	[zhang, hui ; wang, xiaohui ; liu, mingyue ; fang, xuanming] chinese acad sci, shenyang natl lab mat sci, inst met res, shenyang 110016, peoples r china. [zhang, hui ; fang, xuanming] univ chinese acad sci, beijing 100049, peoples r china. ; wang, xh (reprint author), chinese acad sci, shenyang natl lab mat sci, inst met res, 72 wenhua rd, shenyang 110016, peoples r china. ; wang@imr.ac.cn
关键词	Carbide Wear Resistance Interface Ni2alti Tem Cemented Carbides Melt-infiltration Abrasive Wear Sliding Wear Composites Toughness Strength Behavior Alloys
URL	查看原文
语种	英语
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/73490
专题	中国科学院金属研究所
推荐引用方式 GB/T 7714	H. Zhang,X. H. Wang,M. Y. Liu,et al. Reciprocating Wear Performance and Interfacial Microstructure of a TiC-Ni2AlTi Cermet[J]. Tribology Letters,2014,55(2):211-218.
APA	H. Zhang,X. H. Wang,M. Y. Liu,&X. M. Fang.(2014).Reciprocating Wear Performance and Interfacial Microstructure of a TiC-Ni2AlTi Cermet.Tribology Letters,55(2),211-218.
MLA	H. Zhang,et al."Reciprocating Wear Performance and Interfacial Microstructure of a TiC-Ni2AlTi Cermet".Tribology Letters 55.2(2014):211-218.