Structure-property-performance of nanocomposite Cr-Si-N films synthesized by a duplex surface treatment technique

被引：4
作者：
Lai, Daohui [1 ]
Xu, Jiang [1 ,2 ]
Xie, Zong-Han [2 ]
Munroe, Paul R. [3 ]
机构：
[1] Nanjing Univ Aeronaut & Astronaut, Dept Mat Sci & Engn, Nanjing 210016, Peoples R China
[2] Edith Cowan Univ, Sch Engn, Joondalup, WA 6027, Australia
[3] Univ New S Wales, Sch Mat Sci & Engn, Sydney, NSW 2052, Australia
来源：
JOURNAL OF MATERIALS RESEARCH | 2011年 / 26卷 / 24期
基金：
中国国家自然科学基金;
关键词：
MECHANICAL-PROPERTIES; TRIBOLOGICAL PROPERTIES; PREFERRED ORIENTATION; CORROSION-RESISTANCE; CUTTING PERFORMANCE; TI-6AL-4V ALLOY; TITANIUM-ALLOYS; WEAR BEHAVIOR; PVD COATINGS; DEPOSITION;
D O I：
10.1557/jmr.2011.367
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
Nanocomposite Cr-Si-N films were prepared on to Ti-6Al-4V substrates by a novel duplex surface treatment technique. Coatings consisting of a Cr3Si surface layer were deposited using a double cathode glow plasma and subsequent surface plasma nitriding. The surface topography, chemical composition, and microstructure of these treated alloys were analyzed by a variety of surface characterization techniques. The resulting Cr-Si-N films consisted of nanocrystallite CrN grains embedded in amorphous SiNx phase. Nanoindentation tests showed that with increasing nitrogen partial pressure the hardness of the Cr-Si-N films increased and the elastic modulus decreased. Wear experiments showed that the Cr-Si-N films produced at a nitrogen partial pressure of 4.5Pa and 800 degrees C possessed the lowest wear rate and friction coefficient. Moreover, electrochemical measurements in 5 wt% HCl solution indicated that the Cr-Si-N films acted as an effective barrier against acid attack on the alloys.
引用
收藏
页码：3020 / 3031
页数：12
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