铸造2017，Vol.66Issue(11)：1196-1200,5.
Ni对过共晶Al-20Si合金力学性能及摩擦磨损性能的影响
Effect of Ni on the Mechanical Properties and Friction and Wear Properties of Hypereutectic Al-20Si Alloy
徐运超 1水丽1
作者信息
- 1. 沈阳理工大学机械工程学院,辽宁沈阳110159
- 折叠
摘要
Abstract
The properties of hypereutectic Al-20Si alloy were researched, the different mass fraction Ni was added in alloy by compound modification and T6 heat treatment, the microstructure of the alloy was observed by metallographic microscope, and the strength and hardness of alloy was tested. Dry friction and wear test was used to research the effect of the microstructure change of the alloy on the mechanical properties and friction and wear properties. The results show that with the increase of Ni element in alloy, the morphology of primary silicon was blunt and smaller, and the eutectic silicon was granular; the strength and hardness of the alloy was increased, the friction force and friction coefficient was decreased, and the wear resistance of the alloy was increased; the friction and wear mechanism of alloy transform abrasive wear and adhesive wear to abrasive wear and oxidative wear.关键词
过共晶Al-20Si合金/Ni含量/初晶硅/摩擦磨损Key words
hypereutectic Al-20Si alloy/Ni content/primary silicon/friction and wear分类
矿业与冶金引用本文复制引用
徐运超,水丽..Ni对过共晶Al-20Si合金力学性能及摩擦磨损性能的影响[J].铸造,2017,66(11):1196-1200,5.
