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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
Source PublicationTribology Letters
ISSN1023-8883
Volume55Issue:2Pages:211-218
AbstractWear 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.
description.department[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
KeywordCarbide Wear Resistance Interface Ni2alti Tem Cemented Carbides Melt-infiltration Abrasive Wear Sliding Wear Composites Toughness Strength Behavior Alloys
URL查看原文
Language英语
Document Type期刊论文
Identifierhttp://ir.imr.ac.cn/handle/321006/73490
Collection中国科学院金属研究所
Recommended Citation
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.
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