热挤压的高硅铝合金显微组织及性能模拟分析  

Simulation Analysis of Microstructure and Properties of Hot Extruded High Silicon Aluminum Alloy

作　　者：朱守琴 陈宇 郑祥 章麟 李虎 ZHU Shou-qin;CHEN Yu;ZHENG Xiang;ZHANG Lin;LI Hu(School of Mechanical and Electronic Engineering,Chaohu University,Chaohu,238000,Anhui;Shenjiam Scince and Technology Co.,Ltd.of Anhui,Hefei,230601,Anhui)

机构地区：[1]巢湖学院机械与电子工程学院,安徽巢湖238000 [2]安徽神剑科技股份有限公司,安徽合肥230601

出　　处：《蚌埠学院学报》2020年第2期24-26,共3页Journal of Bengbu University

摘　　要：通过半连续铸造方法制备了高硅铝合金管坯,研究了热挤压工艺对高硅铝合金显微组织的影响。结果表明:热挤压处理对高硅铝合金中的初生硅颗粒作用不大,但是能够明显破碎合金中的共晶硅,使其形貌由长杆状转变为短杆状或颗粒状,从而可以提高合金的力学性能。High silicon aluminum alloy tube blank was prepared by semi continuous casting method in this paper.The effect of hot extrusion technology on the microstructure of high silicon aluminum alloy was studied and the results showed that hot extrusion has little effect on the primary silicon particles in the high silicon aluminum alloy,but it can obviously break the eutectic silicon in the alloy and make the morphology change from long rod to short rod or granular,thus the mechanical properties of the alloy can be improved.

关 键 词：高硅铝合金 初生硅 热挤压 共晶硅 

分 类 号：TG453.9[金属学及工艺—焊接]