Characteristics of 2024/3003 aluminium alloys bimetal prepared by direct chill casting

被引：2

作者：

Liu, N. ^{[1
]}

Song, X. Y. ^{[2
]}

Jie, J. C. ^{[1
]}

Fu, Y. ^{[1
]}

Li, T. J. ^{[1
]}

机构：

[1] Dalian Univ Technol, Sch Mat Sci & Engn, Dalian 116024, Peoples R China

[2] China First Heavy Ind, Mat Res Inst Energy Equipments, Tianjin 300457, Peoples R China

来源：

MATERIALS SCIENCE AND TECHNOLOGY | 2014年 / 30卷 / 11期

基金：

中国博士后科学基金; 中国国家自然科学基金;

关键词：

Clad slab; Direct chill casting; Aluminium alloy; Interface; MECHANICAL-PROPERTIES; PLASTIC-DEFORMATION; COMPOSITE INGOT; CLAD INGOT; MICROSTRUCTURE; HARDNESS; SHEET;

D O I：

10.1179/1743284713Y.0000000445

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

A direct chill semicontinuous casting process to prepare 2024/3003 clad slab has been developed in the present study. Microstructure, solute distribution and bonding strength of the interfacial regions of clad slab were investigated by methods of metallographic examination, electron probe microanalysis and tensile tests. The results show that an excellent metallurgical bonding between the two different alloys can be achieved with optimal parameters. The 3003 alloy, which was poured into the mould earlier, serves as the substrate of heterogeneous nucleation of 2024 alloy. The Cu and Mg atoms diffuse from the 2024 side into the matrix of 3003 side, while Mn atoms diffuse in the opposite direction. The mean tensile strength of clad slab is 118 MPa, and the strength of the interface is higher than that of 3003 alloy.

引用

页码：1354 / 1358

页数：5

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