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    题名 作者 年代 出处 被引量
1Tribological Behaviors of Ni_3Al Intermetallics with MoO_3 Multilayer Ribbon Crystal Prepared by Spark Plasma Sintering显示文摘This study reports that small amounts of MoO_3 multilayer ribbon crystal(MoO_3MLRC) in Ni_3Al intermetallics showed the decreased friction coefficients and improved wear resistance at different contact loads. Specifically, the friction coefficients(0.32–0.34) and wear rates [(2–4) × 10^(-5)mm3N^(-1)m^(-1)] are significantly reduced for Ni_3Al at 2–8 N. A possible explanation for the friction and wear reduction is that MoO_3 MLRC as a multilayer material shears easily in the tribo-layer during the sliding contact, and provides low friction. In addition, this MoO_3 MLRC with excellent bending strength is found to dissipate shear stress and suppress severe plastic deformation under a cyclic stress, thus drastically improving wear resistance of Ni_3Al.Wenzheng Zhai Xiaoliang Shi Kang Yang Yuchun Huang Liping Zhou Wenlong Lu 2017Acta Metallurgica Sinica(English Letters)2017,30,6:1
2Experimental study of the effect of wear parameters on the wear behavior of A356 alloy/cow horn particulate composites显示文摘Experimental study of the effect of wear parameters on the wear behaviour of A356 alloy reinforced with cow horn particles(CHp) produced by spark plasma sintering was investigated. Experiments were conducted based on the plan of experiments generated through Taguchi's(L9) technique. Tribometer was used for the wear test and Scanning electron microscope was used to analyse the worn scar of the samples. The results shows that, A356 alloy reinforced with CHp exhibited better dry sliding wear resistance than the unreinforced alloy. Wear rate decreased as the amount of CHp reinforcement increased in the matrix. It was found that, the optimum level of the factors with minimized the wear loss were obtained at: wt%CHp(20%), applied load(10 N), sliding velocity(3 m/s) and sliding distance(2000 m). It can be seen that the wear track of the sample are(D ? 0.81 and L = 42.85 mm) and(D ? 0.54 and L= 27.03 mm) for A356 alloy and composites at optimum condition respectively. The results showed that the addition of cow horn particles as reinforcing materials in A356 alloy composites increased the wear resistance of the composites greatly.B.Q.Ochieze C.C.Nwobi-Okoye P.N.Atamuo 2018Defence Technology(防务技术)2018,14,1:0
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