Wear and Friction Properties of MgZnY Alloy with Dispersion of Quasi-Crystalline Phase
Wear and Friction Properties of MgZnY Alloy with Dispersion of Quasi-Crystalline Phase
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DOI：
10.2320/matertrans.m2013301
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发表时间：
2014
影响因子：
1.2
通讯作者：
H. Somekawa;A. Shimoda;T. Hirayama;T. Matsuoka;T. Mukai
中科院分区：
文献类型：
--
作者：
H. Somekawa;A. Shimoda;T. Hirayama;T. Matsuoka;T. Mukai
利用销盘结构研究了弥散分布准晶相的镁锌Y合金的摩擦磨损性能。在干磨损条件下，铸态合金的磨损率和摩擦系数分别为1.95、1.75、2.40，分别为1.95、1.75、2.40。确定了提高镁合金磨损性能的有效途径是在粗晶组织中均匀分布准晶相。同时，由于晶界滑移，即材料软化，细化效果不佳。[DOI：10.2320/MATERTRA.M2013301]
The wear and friction properties of the MgZnYalloys with a dispersion of the quasi-crystalline phase were investigated using the pin-ondisk configuration. The wear loss rates and the friction coefficient were obtained to be 1.95 © 10 ¹5 mm 3 /mm and 0.26 in the casted alloy, 1.75 © 10 ¹5 mm 3 /mm and 0.24 in the heat-treated alloy, 2.40 © 10 ¹5 mm 3 /mm and 0.24 in the extruded alloy, respectively, under the dry wear condition. An effective method to enhance the wear properties in the magnesium alloys was determined to be a homogenous distribution of the quasi-crystalline phase in the coarse-grained matrix. Meanwhile, the grain refinement was not suitable due to grain boundary sliding, i.e., materials softening. [doi:10.2320/matertrans.M2013301]