Investigating the effect of post-weld heat treatment on the corrosion properties of the explosive welded three-layer joint of Cu/Al/Cu

Subject Areas : Journal of Simulation and Analysis of Novel Technologies in Mechanical Engineering

Heydar Ali Zamani ¹ , Mohammad Reza Khanzadeh ² , Ali Bakhtiari ³ , Hossein Paydar ⁴

1 - Masters, Department of Material Engineering, Islamic Azad University, Majlesi Branch, Esfahan, Iran.
2 - Associate Professor, Faculty of Engineering, Mobarakeh Branch, Islamic Azad University, Esfahan, Iran
3 - Assistant Professor, Department of Material Engineering, Islamic Azad University, Majlesi Branch, Esfahan, Iran
4 - Assistant Professor, Center for Advanced Engineering Research, Islamic Azad University, Majlesi Branch, Esfahan, Iran

Received: 2024-05-13 Accepted : 2024-07-21

Keywords: Explosive Welding, Explosive Load Thickness, Plastic Deformation, Vortex.,

Abstract :

This study investigates the corrosion behavior and microstructural changes of Cu/Al/Cu three-layer tubes after post-weld heat treatment in the explosive welding process. The heat treatment was performed by varying the temperature. Polarization tests and electrochemical impedance spectroscopy were employed to examine the corrosion behavior of the weld zone. Additionally, metallographic examination using optical microscopy (OM) and scanning electron microscopy (SEM) was conducted to study the microstructure. The electrochemical impedance spectroscopy results showed that the value of “n” in the heat-treated sample at 300°C and explosion load of 2.8 had a lower value compared to the heat-treated sample at 300°C and explosion load of 3.2, indicating higher corrosion current in the heat-treated sample at 300°C and explosion load of 2.8, leading to a decrease in charge transfer resistance. By comparing the heat-treated samples at 300°C and explosion load of 2.8 with the ones heat-treated at 400°C and explosion load of 2.8, with variable annealing temperature and constant annealing time, the sample heat-treated at 400°C exhibited a higher value of n (0.77), while the heat-treated sample at 300°C and explosion load of 2.8 had a lower value of n (0.69), attributed to the increase in annealing temperature and the decrease in stored energy in the joint.

References:

[1] Zlobin, B.S. (2008) Explosion welding of steel with aluminum Combustion. Explosion and Shock Waves, 38, 374-377.
[2] Tem izel, G. (2007) Intermetallic phase formation at fe-al film interfaces. Turkish Journal of Engineering and Environmental Sciences, 71-78.
[3] Danesh Manesh, H. & Karimi Taheri, A. (2003) The effect of annealing treatment on mechanical properties of aluminum clad steel sheet. Materials Design, 24, 617–622.
[4] Phengsakul, S. & Rodchanarowan, A. (2013) Effect of thermal treatment on intermetallic phases of fe/al structural transition joints. Energy Procedia, 34, 782 – 790.
[5] Samardzic, I., Matesa, B. & Kladaric, I. (2011) The influence of heat treatment on properties of three-metal explosion joint: Almg-Al-Steel. Metabk, 50, 159-162.
[6] Findik, F., Yilmaz, R. & Somyurek, T. (2011) The effects of heat treatment on the microstructure and microhardness of explosive welding. Scientific Research and Essays, 6, 4141-4151.
[7] Akbari Mousavi, S.A.A. & farhadi sartangi, P. (2008) Effect of post-weld heat treatment on the interface microstructure of explosively welded titanium-stainless steel composite. Materials Science and Engineering A, 494, 329-336.
[8] Banker, J. (2002) Aluminum-steel electric transition joints, effects of temperature and time upon mechanical properties. Draft of Paper for presentation TMS 131st Annual Meeting.
[9] Acarer, M. (2012) Electrical, corrosion and mechanical properties of aluminum-copper joints produced by explosive welding. Journal of Materials Engineering and Performance, 21, 2375-2379.
[10] Kahramana, N. & G¨ulenc, B. (2005) Joining of titanium/stainless steel by explosive welding and effect on interface. Journal of Materials Processing Technology, 169, 127–133.
[11] Khanzadeh, M.R., Khalaj, G.R., Pouraliakbar, H., Jandaghi, M.R., Soltani Dehnavi, A. & Bakhtiari, H. (2018) Multilayer Cu/Al/Cu Explosive Welded Joints: Characterizing Heat Treatment Effect on the Interface Microstructure and Mechanical Properties, Journal of Manufacturing Processes, 35, 657-663.
[12] Esquivel, E. & Murr, L.E. (2004) Observations of common micro structural issues associated with dynamic deformation phenomena: twins, micro bands, grain size effects, shear bands, and dynamic recrystallization. Journal of Materials Science, 39, 1153-1168.
[13] Meyers, M.A., Xu, Y.B. & Xue, Q. (2003) Micro structural evolution in adiabatic shear localization in stainless steel. Acta Materialia, 51, 1307–1325.
[14] Murr, L.E., Ferreyra, E, Pap, E., Rivas, J.M., Kennedy, C., Ayapu, A, Garcia, E.I., Sanchez, J.C., Huang, W. & Niou, C. S. (1996) Novel deformation processes and microstructures involving ballistic penetrator formation and hypervelocity impact and penetration phenomena. Materials Characterization, 37, 245-276.
[15] Stansbury, E.E. & Buchanan, R.A. (2000) Fundamentals of electrochemical corrosion. ASM International, New York.
[16] Jaramillo, D., Szecket, A. & Inal, O.T. (1987) On the transition from a wave less to wavy interface in explosive welding”, Materials Science and Engineering, 91, 217-222.