Heat Treatment of Metals ›› 2022, Vol. 47 ›› Issue (1): 255-260.DOI: 10.13251/j.issn.0254-6051.2022.01.042

• PROCESS RESEARCH • Previous Articles     Next Articles

Effect of annealing temperature on mechanical properties of Al/IF steel multilayer composites with high rolling ductility

Wang Ming, Li Wenjin, Zhang Xu, Cheng Lili, Xu Yang   

  1. College of Materials Science and Engineering, Liaoning Technical University, Fuxin Liaoning 123000, China
  • Received:2021-08-24 Revised:2021-10-20 Online:2022-01-25 Published:2022-02-18

Abstract: Al/IF steel multilayer composites were prepared by roll-bonding, and then annealed at 300-450 ℃. The microstructure and mechanical properties of the as-rolled and as-annealed Al/IF steel multilayer composites were analyzed. The results show that the tensile strength of the roll-bonded Al/IF steel multilayer composites is between that of pure Al and IF steel, and the total extension at fracture is relatively low, while the hardness of botn Al layer and IF steel layer after annealing are higher than that of raw mateial. As the annealing temperature increases, the tensile strength gradually decreases, and the total extension at fracture increases first and then decreases. When annealed at 350 ℃, the comprehensive mechanical properties of the composites are the best. The effect of annealing temperature on the mechanical properties of the Al/IF steel multilayer composites is mainly reflected in the effect on the Al layer.

Key words: roll-bonding, annealing treatment, multilayer composites, mechanical properties

CLC Number: