The Effect of Annealing Heat Treatment on the Bond of Explosivewelded Copper/Steel after the ECAR Process

محورهای موضوعی : Manufacturing process monitoring and control

Mohammad Honarpisheh ¹ , Ali Akbar Haddadi ² , Hadi Mansouri ³

1 - Faculty of Mechanical Engineering, University of Kashan, Kashan, Iran
2 - Faculty of Engineering, Jasb branch, Islamic Azad University
3 - Faculty of Mechanical Engineering, University of Kashan, Kashan, Iran

تاریخ دریافت : 1398/07/22 تاریخ پذیرش : 1397/10/16 تاریخ انتشار : 1398/02/11

کلید واژه: Hardness, Interface, Annealing, ECAR, Explosive-welded Bimetal,

چکیده مقاله :

Equal channel angular rolling (ECAR) process is one of the severe plastic deformation (SPD) methods that have been used to make ultra-fine grain (UFG) materials with improving the mechanical properties of samples. After performing the process at several paths, a large strain is applied to the material that can cause decreasing the grain size and improving the mechanical and physical properties of the metal. In this paper, the effects of annealing thermal treatment at various temperatures and times on the weld bond of bimetal explosive welded stainless steel-copper sheet during the equal channel angular rolling process have been investigated. For this purpose, after performing the ECAR process and thermal treatment on bimetal sheet, hardness and welding interface were studied. The results showed that performing thermal treatment at different temperatures caused the formation of intermetallic compounds in the weld bond, which would change the hardness of this region. Also, increasing the annealing time increased the thickness of the weld bond.

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