Investigation of Microstructure and Corrosion Resistance of Dissimilar Welded Joint between 304 Stainless Steel and Pure Copper.
سال انتشار: 1396
نوع سند: مقاله کنفرانسی
زبان: انگلیسی
مشاهده: 486
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شناسه ملی سند علمی:
IMES11_299
تاریخ نمایه سازی: 7 اسفند 1396
چکیده مقاله:
Nowadays, welding of dissimilar metals has become significant. In this process, a number of parameters including but not limited to type of electrode, amount of current, preheating temperature, and welding rate, that are essential to be taken into account. For welding of dissimilar metals, various methods are exploited including shielded metal arc welding (SMAW) and gas tungsten arc welding (GTAW). The stimulus for studying welding of 304L stainless steel to pure copper originates from difficulties in joining copper parts of water-circulating molds to their steel part. In this study, the welding is performed on plates of steel and copper using SMAW, GTAW and GTAW-SMAW methods with EL – CuMn2, EniCrMo-6 and ER70S-4 electrodes. In order to investigate the microstructure and corrosion resistance behavior of welds, the samples were characterized using microstructural study and polarization test. Among all four welding methods, only two methods, one of which is GTAW-SMAW, resulted in successful joint between 304L stainless steel and copper. Both obtained joints possess suitable microstructure and corrosion resistance.
کلیدواژه ها:
نویسندگان
Ehsan Entezari
M.S of Sahand University of Technology, Tabriz, Iran.
Ebrahim Z.Karimi
Assistant Professor, Department of Metallurgy and Ceramics Engineering, Islamic Azad University, Mashhad Branch, Mashhad, Iran.
Hamid Mousalou
PhD Student of Sahand University of Technology, Tabriz, Iran.