SiC增强Mg基纳米复合材料的制备与表征  

Preparation and Characterization of SiC Reinforced Mg-Based Nanocomposites

作　　者：张光曙 艾永平 ZHANG Guangshu;AI Yongping(Mechanical Engineering,Jiangxi Institute of Mechanical and Electrical Technology,Nanchang 330006,China;College of Mechanical and Electrical Engineering,Jinggangshan University,Ji’an 343009,Jiangxi,China)

机构地区：[1]江西机电职业技术学院机械工程学院,江西南昌330006 [2]井冈山大学机电工程学院,江西吉安343009

出　　处：《昆明理工大学学报(自然科学版)》2025年第1期29-34,共6页Journal of Kunming University of Science and Technology(Natural Science)

基　　金：国家自然科学基金项目(82160413).

摘　　要：为增强镁合金的强度等性能,用1%SiC纳米粒子增强纯镁,利用热压铸成型和超声波空化技术在不同温度下制备出Mg-1%SiC纳米复合材料,挤压成型,对其表征,并用相同工艺加工纯镁与其对比.结果表明:在Mg-1%SiC纳米复合材料中,存在SiC纳米颗粒平行于压缩方向的微观条带;沿着与压缩方向成90°角的界面,存在分散均匀的纳米颗粒;相对于无增强相纯镁,Mg-1%SiC纳米复合材料具有更高的屈服强度、硬度、抗拉强度和更好的延展性.To enhance the strength and other properties of magnesium alloys,Mg-1%SiC nanocomposites were prepared by hot-die casting and ultrasonic cavitation at different temperatures and then extruded,it is characterized and compared with pure magnesium processed by the same process.The results show that the Mg-1%SiC nanocomposites have a micro-band of SiC nanoparticles parallel to the compression direction,and the nano-particles are dispersed uniformly along the 90°angle of the interface with the compression direction compared to unreinforced pure magnesium,Mg-1%SiC nanocomposites exhibit higher yield strength,hardness,tensile strength,and better ductility.

关 键 词：热压铸成型 超声波空化技术 Mg-1%SiC纳米复合材料 

分 类 号：TB333[一般工业技术—材料科学与工程]