Mg-Zn-Gd準晶增強AZ31鎂基復合材料的摩擦摩損性能
發(fā)布人：上海艾荔艾合金股份有限公司www.shailiai.cn
更新時間：2016-05-06
以Mg-Zn-Gd準晶中間合金為增強相，AZ31鎂合金為基體合金，采用多次循環(huán)塑性變形技術制備準晶增強鎂基復合材料，并在低載荷條件下對合金和復合材料進行耐磨性能研究。
Mg-Zn-Gd準晶增強AZ31鎂基復合材料的摩擦摩損性能Friction and wear properties of AZ31 based composites reinforced with Mg-Zn-Gd icosahedral quasicrystal以Mg-Zn-Gd準晶中間合金為增強相，AZ31鎂合金為基體合金，采用多次循環(huán)塑性變形技術制備準晶增強鎂基復合材料，并在低載荷條件下對合金和復合材料進行耐磨性能研究。結(jié)果表明:當變形次數(shù)為250次時，準晶中間合金含量為10%(質(zhì)量分數(shù))的復合材料中第二相分布最為均勻;AZ31鎂合金和復合材料的摩擦因數(shù)均隨載荷的增加而略有降低;高熱穩(wěn)定性及高硬度準晶的加入有效提高復合材料的耐磨性能。
The Mg-Zn-Gd icosahedral quasicrystal master alloy particles was added into the AZ31 alloy by the repeated plastic working (RPW) process in order to produce AZ31 based composite reinforced by the icosahedral phase. The wear-resistance of the alloys and compositions under a lower load were investigated. The results show that the distribution of reinforcement in the composite with 10% (mass fraction) quasi-crystal master alloy is significantly uniform. The wear coefficient of the AZ31 alloy and composites decreases as the load increases. On the whole, the addition of high-stable and high-hard icosahedral quasicrystal leads to obvious improvement of wear-resistance property.
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