个人信息Personal Information
教授
博士生导师
硕士生导师
性别:男
毕业院校:哈尔滨工业大学
学位:博士
所在单位:材料科学与工程学院
学科:材料加工工程
办公地点:铸造中心101
联系方式:0411-84706220
电子邮箱:jiejc@dlut.edu.cn
Characteristics of copper-clad aluminum rods prepared by horizontal continuous casting
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论文类型:期刊论文
发表时间:2017-11-01
发表刊物:METALS AND MATERIALS INTERNATIONAL
收录刊物:SCIE
卷号:23
期号:6
页面范围:1197-1203
ISSN号:1598-9623
关键字:composites; casting; interfaces; mechanical properties; computer simulation
摘要:An innovative horizontal continuous casting method was developed and successfully used to prepare copper-clad aluminum (CCA) rods with a diameter of 85 mm and a sheath thickness of 16 mm. The solidification structure and element distribution near the interface of the CCA ingots were investigated by means of a scanning electron microscope, an energy dispersive spectrometer, and an electron probe X-ray microanalyzer. The results showed that the proposed process can lead to a good metallurgical bond between Cu and Al. The interface between Cu and Al was a multilayered structure with a thickness of 200 mu m, consisting of Cu9Al4, CuAl2, alpha-Al/CuAl2 eutectic, and alpha-Al + alpha-Al/CuAl2 eutectic layers from the Cu side to the Al side. The mean tensile-shear strength of the CCA sample was 45 MPa, which fulfills the requirements for the further extrusion process. The bonding and diffusion mechanisms are also discussed in this paper.