Effect of Cold Rolling Reduction on Performance of Thin Aluminum Clad Steel Strips for Brazing

Subjects: Materials Science >> Materials Science (General) submitted time 2023-03-18 Cooperative journals: 《材料研究学报》

李龙 陈鑫 高闯 张小军 周德敬 凌亚标

Abstract： Thin 4A60 Al-alloy clad 08Al-steel strips were made by cold rolling with different reduction rates. The clad strips were then brazed with a thin film of 3003 Al-alloy. The interfacial bonding strength of aluminum to steel was evaluated by tensile shearing test in order to determine critical rolling reduction of thin aluminum clad steel sheets. The fracture morphology and element distribution were observed and analyzed by means of scanning electron microscope (SEM), energy dispersive spectrometer (EDS), respectively. Finally, a minimum bonded reduction of 35% was suggested and the stable reduction of 50% was proposed based on the measured bonding strength and the observed fracture morphology.

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