超声化学原位合成Mg_2Si/AM60复合材料力学性能及微观组织  

The mechanical properties and microstructure of Mg_2Si/AM60 composite via in-situ ultrasonic chemistry reaction

作　　者：吴庆捷[1] 闫洪[1] 

机构地区：[1]南昌大学先进成形研究所,南昌330031

出　　处：《塑性工程学报》2010年第5期128-132,共5页Journal of Plasticity Engineering

基　　金：国家自然科学基金资助项目(50465003;50765005);江西省高校科技创新团队资助项目

摘　　要：通过超声化学原位合成的方法制备了Mg2Si/AM60镁基复合材料,并且通过显微(OM)分析及拉伸实验,对在不同超声功率及超声时间的复合材料进行对比。结果表明,在超声功率为600W、超声作用时间为30min时,其抗拉强度达到了190.1MPa,较未施加超声原位的复合材料抗拉强度提高了11.2%。生成的增强相颗粒也由原先的汉字状和块状转变为颗粒状及破碎树枝状,并且周边钝圆,无尖锐棱角出现。The Mg2Si/AM60 magnesium matrix composites was prepared by the method of high-energy ultrasonic chemistry melt in-situ reaction,and comparison between the mechanical properties of composites adopting different ultrasonic power and treatment time were done by microscopy（OM） analysis and tensile tests.The results show that when the ultrasonic power and treatment time are 600W and 30min,respectively,the tensile strength is 190.1MPa which is increased by 11.2% than those without ultrasonic treated.The generated reinforcement particles＇ morphology changed from the original massive style looked like Chinese characters into granules and branched style without sharp edge on the periphery.

关 键 词：原位反应 高能超声 力学性能 微观组织 

分 类 号：TB331[一般工业技术—材料科学与工程]