Transactions of Nonferrous Metals Society of China The Chinese Journal of Nonferrous Metals

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中国有色金属学报(英文版)

Transactions of Nonferrous Metals Society of China

Vol. 35    No. 9    September 2025

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Effect of rolling direction and reduction on microstructure evolution and mechanical properties of Cu/1010 steel bimetal laminated composites
Bo PENG1, Jia LIU1, Hui-kun WANG1, Xing-run SHAN1, Guo-liang LI1, Zi-di HANG1, Jin-chuan JIE1,2, Ting-ju LI1,2

1. Key Laboratory of Solidification Control and Digital Preparation Technology (Liaoning Province), School of Materials Science and Engineering, Dalian University of Technology, Dalian 116024, China;
2. Ningbo Institute of Dalian University of Technology, Ningbo 315000, China

Abstract:The Cu/1010 steel bimetal laminated composites (BLCs) were rolled to different thicknesses to investigate the effect of rolling direction and reduction on the microstructure evolution and mechanical properties. The difference of mechanical properties between the Cu and 1010 steel causes different thickness reductions, percentage spread, and cladding ratios. The formation of strong texture induces larger strength of the rolled samples, and as the volume fraction of 1010 steel is larger in Route-A, its strength is consistently greater than that in Route-B. The obstruction of interface to crystal and dislocation slip results in the formation of interface distortion, inducing dislocation density gradient when the rolling reduction is low in Route-A. The slip planes of the Cu and 1010 steel are more prone to suffer the normal strain, while the shear strain of other crystal planes is obviously larger than the normal strain under rolling load near the interface.

 

Key words: Cu/steel bimetal laminated composite; rolling; microstructure evolution; mechanical properties; deformation behavior

ISSN 1004-0609
CN 43-1238/TG
CODEN: ZYJXFK

ISSN 1003-6326
CN 43-1239/TG
CODEN: TNMCEW

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