超声功率对Al-5%Cu合金凝固组织及凝固行为的影响  

Effect of Ultrasonic Power on Solidification Structure and Solidification Behavior of Al-5%Cu Alloy

作　　者：赵志伟[1] 于君娜 罗崇辉 安昊瀛 ZHAO Zhi-wei;YU Jun-na;LUO Chong-hui;AN Hao-ying(Material Science and Engineering College,Liaoning University of Technology,Jinzhou 121001,China;Jinzhou inspection and Testing Certification Center,Jinzhou 121000,China;Jinzhou Product Quality Supervision and Inspection Institute,Jinzhou 121000,China;Material Science and Engineering College Xi’an University of Technology,Xi’an 710000,China)

机构地区：[1]辽宁工业大学材料科学与工程学院,辽宁锦州121001 [2]锦州市检验检测认证中心,辽宁锦州121000 [3]锦州市产品质量监督检验所,辽宁锦州121000 [4]西安理工大学材料科学与工程学院,陕西西安710000

出　　处：《辽宁工业大学学报（自然科学版）》2021年第6期379-382,共4页Journal of Liaoning University of Technology(Natural Science Edition)

摘　　要：研究了不同超声功率对Al-5%Cu合金凝固组织的影响。结果发现,随着超声功率的提高,晶粒尺寸呈先细小、后增大的趋势。当超声功率为600 W时,能够细化晶粒,形成等轴晶,平均晶粒尺寸为174.9μm;当超声功率为1000 W时,组织为等轴晶,平均晶粒尺寸为147.5μm,共晶组织出现离异现象;当超声功率达到1400 W时,晶粒有粗化趋势,平均晶粒尺寸为256.6μm,对组织改善无益。The effect of ultrasonic power on solidification structure of Al-5%Cu alloy was studied.The results show that with the increase of ultrasonic power,the grain size decreases first and then increases;When the ultrasonic power is 600 W,the grains can be refined and equiaxed grains can be formed,and the average grain size is 174.9μm;When the ultrasonic power is 1000 W,the microstructure is equiaxed and the average grain size is 147.5μm.The eutectic structure is divorced eutectic;When the ultrasonic power reaches 1400 W,the grain has a coarsening tendency,and the average grain size is 256.6μm.No benefit to organizational improvement.

关 键 词：超声处理 AL-CU合金 CuAl_(2) 晶粒细化 离异共晶 

分 类 号：TG292[金属学及工艺—铸造] TG146.21[一般工业技术—材料科学与工程]