Abstract: The effects of the addition of rare earth (RE) elements La and Ce and the ultrasonic treatment on the microstructure, grain size and tensile strength of as cast ZL201 aluminum alloy were investigated. The results show that a proper amount of RE elements are effective to restrain grain growth and refine dendrite and grain size. The tensile strength of ZL201-0.2%La(wt%) alloy is 207 MPa and the tensile strength of ZL201-0.6%Ce alloy reaches 223 MPa, which is 10.7% and 19.3% higher than that of ZL201 base alloy, respectively. After ultrasonic treatment, the tensile strength of ZL201-0.1%La alloy is as high as 247 MPa,50.6% hig-her than that of ZL201-0.1%La alloy without ultrasonic treatment; while the tensile strength of ZL201-0.3%Ce alloy is 226 MPa,10.2% higher than that without ultrasonic treatment.
张赛楠, 潘利文, 罗涛, 黄丹琳, 董强, 胡治流. 稀土La和Ce及超声处理对ZL201铝合金显微组织及抗拉强度的影响[J]. 《材料导报》期刊社, 2018, 32(14): 2452-2457.
ZHANG Sainan, PAN Liwen, LUO Tao, HUANG Danlin, DONG Qiang, HU Zhiliu. Effect of Rare Earth Elements La and Ce and Ultrasonic Treatment on Microstructure and Tensile Strength of ZL201 Aluminum Alloy. Materials Reports, 2018, 32(14): 2452-2457.
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2018, Vol. 32 
