Investigation of the effect of thermal treatment after welding on the corrosion properties of the interconnecting joint wall of Cu / SS 304 sheets

Subject Areas :

Ali Ebrahimi Akbarabadi ¹ , Abbas Saadat ² , Mohammadreza Khanzadeh ³ , hamid bakhtiari ⁴

1 - Majlesi Research Center, Khorasghan Branch Islamic Azad University, Isfahan, Iran
2 - Faculty of Engineering, Khorasghan Branch, Islamic Azad University, Khorasghan (Isfahan), Iran
3 - Associate Professor, Faculty of Engineering, Mobarakeh Branch, Islamic Azad University, Isfahan, Iran
4 - Materials and Energy Research Center, Materials Department, Karaj, Iran.

Received: 2023-01-21 Accepted : 2023-04-04 Published : 2024-02-15

Keywords: Severe Plastic Deformation, Vortex, Explosive Welding, explosive charge thickness,

Abstract :

In the present study, the effect of thermal treatment on the corrosion behavior and microstructure changes of two-layer stainless-304-Cu sheet steel sheets after the explosive welding process has been investigated. Explosive welding has been done in parallel with an explosive layer of 46 and 63 µm and a stop distance of 2-3 mm. After explosive welding, the heat treatment process was carried out at 350 and 450 ° C for 8 and 16 hours. Explosive welding with an explosive load and variable stop distance. From the results of the electrochemical impedance test, it can be seen that the n number in the heat treatment sample at 350 ° C and 8 hours is less than the heat treatment sample at 450 ° C and 8 hours, and as a result, the corrosion current in the heat treatment sample The temperature is 350 ° C and the time is 8 hours, which reduces the load transfer resistance. By comparing the heat treatment samples at 350 ° C and 8 hours and the heat treatment at 450 ° C and the time of 8 hours with varying aniline temperature, the annealing time is constant and the heat treatment sample at 450 ° C and time 8 The hour with more annealing temperature has a value of n (0.80), followed by heat treatment at 350 ° C and 8 hours (n = 0.66), due to annealing temperature and reduced energy storage In the chapter.

References:

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6- پی نوشت
[1] Amatol
[2] TNT
[3] Shock Waves
[4] Energy-dispersive spectroscopy-(EDS)
[5] Tamhankar
[6] Energy-dispersive spectroscopy-(EDS)