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Home > Archive>Volume 52, Issue 4, 2023 >1259-1266. DOI:10.12442/j.issn.1002-185X.E20220027
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Microstructures and Mechanical Properties of AlSn20Cu/Steel Laminated Metal Composites Fabricated by Cold Roll Bonding
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Affiliation:

1.College of Mechanical and Vehicle Engineering, Chongqing University, Chongqing 400030, China;2.Chongqing Hongjiang Machinery Co., Ltd, Chongqing 402160, China;3.Chongqing Yuejin Machinery Co., Ltd, Chongqing 402160, China

Fund Project:

National Natural Science Foundation of China (51975073)

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    Abstract:

    Laminated metal composites (LMCs) of 1060Al/AlSn20Cu/1060Al/steel were fabricated by cold roll bonding, and the effects of rolling reductions on the microstructure and mechanical properties were characterized. The microstructure was observed by scanning electron microscopy (SEM) and electron backscatter diffraction (EBSD), and the mechanical properties were examined by tensile tests. The initial rolling reduction was 17%, and the minimum stable rolling reduction was 40%. Results show that the increase in rolling reduction causes an elongation of the Sn phases in the AlSn20Cu layer and lengthening of grains in the steel layer along the rolling direction, whereas the 1060Al layers shows equiaxed grains. The tensile strength and interfacial bonding strength of the composite sheets increase while the elongation decreases with increasing rolling reduction. The fracture of the AlSn20Cu layer is related to the Sn phase.

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[Wang Pengju, Zhao Shujie, Zhong Ning, Yang Qian, Wu Bo, Zhang Peng, Du Bing, Tang Qian. Microstructures and Mechanical Properties of AlSn20Cu/Steel Laminated Metal Composites Fabricated by Cold Roll Bonding[J]. Rare Metal Materials and Engineering,2023,52(4):1259~1266.]
DOI：10.12442/j. issn.1002-185X. E20220027

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History
  • Received:September 28,2022
  • Revised:April 03,2023
  • Adopted:November 09,2022
  • Online: April 28,2023
  • Published: April 25,2023

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