Friction and wear properties of AZ31 based composites reinforced with Mg-Zn-Gd icosahedral quasicrystal

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.

Duke Scholars

Author Zhaohui Wang Pathology