西华大学学报（自然科学版）2017，Vol.36Issue(1)：108-112,5.DOI:10.3969/j.issn.1673-159X.2017.01.020
挤压态和压铸态AZ91镁合金的摩擦磨损行为
Research on the Friction and Wear Behavior of AZ91 Magnesium Alloy of Squeezing State and Die Casting State
摘要
Abstract
The friction and wear characteristics of AZ91 magnesium alloy formed by extruding and pressure casting were studied. The effects of different forming technologies on the friction and wear characteristics of AZ91 magnesium alloy were analyzed and the wear mechanisms were discussed. The experimental results show that the friction coefficient of extruded and pressure casted AZ91 mag-nesium alloy decreases , while the mass loss increases with the increasing of the load and rotation rate. Under the same wearing condi-tion, the friction coefficient and mass loss of extruded AZ91 magnesium alloy are lower than that of pressure casted AZ91 magnesium alloy. The extruded and pressure casted AZ91 magnesium alloy possess the same wearing mechanism with dry slithering friction. The wearing mechanisms of extruded and pressure casted AZ91 magnesium alloy chang with the increase of the load. When the load is equal to 50N, the wearing mechanisms are abrasive wear and oxidation wear. When the load increases to 100N, the wearing mechanisms change to light delamination wear, adhesion wear and oxidation wear. With the increase of the load to 150N, the wearing mechanisms are severe delamination wear, oxidation wear and adhesion wear.关键词
镁合金/显微组织/摩擦因数/磨损量/磨损机制Key words
magnesium alloy/microstructure/friction coefficient/mass loss/wear mechanism引用本文复制引用
曾明,吴仕杰,廖慧敏..挤压态和压铸态AZ91镁合金的摩擦磨损行为[J].西华大学学报（自然科学版）,2017,36(1):108-112,5.基金项目
教育部春晖计划项目(Z2012012) （Z2012012）
四川省教育厅项目(13ZA0022) （13ZA0022）
西华大学重点项目(Z1320111). （Z1320111）
