接金川

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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

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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.