Microstructure and properties of (Ti, Al) N coatings on WC-Co cemented carbide

被引：2
|
作者：
Li, Yudong [1 ]
Liu, Zhen [1 ]
Yang, Jing [1 ]
Chen, Yigang [1 ]
机构：
[1] Shanghai Univ, Sch Mat Sci & Engn, Dept Elect Informat Mat, Shanghai 200072, Peoples R China
来源：
12TH INTERNATIONAL SYMPOSIUM ON MULTISCALE, MULTIFUNCTIONAL AND FUNCTIONALLY GRADED MATERIALS (FGM 2012) | 2013年 / 419卷
关键词：
(Ti; Al)N; coating; nano-hardness; friction coefficient; NANOINDENTATION HARDNESS; THERMAL-STABILITY; TITANIUM NITRIDE; TIALN FILMS; (TI; AL)N; MECHANISMS; BEHAVIOR;
D O I：
10.1088/1742-6596/419/1/012028
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
(Ti, Al)N films were grown on WC-Co cemented carbides by R.F. reactive sputtering using Ti/Al composite target. The crystalline structure, morphology and composition of (Ti, Al)N coatings were investigated by X-ray diffraction (XRD), optical microscope and X-ray energy dispersive spectroscope (EDS), respectively. The mechanical properties of (Ti, Al)N coatings with the variable Al content were investigated by applying nanoindentation. With the increase of the Al content, the crystal structure of (Ti, Al)N films changed form fcc to hexagonal structure. When the ratio of Ti to Al in (Ti, Al)N coatings was approximately 4:1, and the N content was 40.67%, the nano-hardness of (Ti, Al)N coating was highly up to 28 GPa. By adjusting the Al content, the lowest value of friction coefficients was 0.1397.
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页数：7
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