Analysis of Impact Strength and Hardness on Dissimilar Metal Welding (DMW) between Carbon Steel and Stainless Steel Using Stainless Steel Electrodes
Analisa Kekuatan Impak dan Kekerasan pada Dissimilar Metal Welding (DMW) antara Baja Karbon dan Stainless Steel Menggunakan Elektroda Stainless Steel
DOI:
https://doi.org/10.21070/ups.10907Keywords:
Dissimilar Metal Welding (DMW), Impact Strength, Hardness, Carbon Steel, Stainless SteelAbstract
Dissimilar metal welding important method manufacturing industry joining materials different mechanical and chemical properties order achieve optimal joint performance. Combination carbon steel and stainless steel widely used because it integrates high strength and low cost carbon steel excellent corrosion resistance stainless steel. This study aims analyze effect variations welding current and welding sequence mechanical properties dissimilar metal joints between carbon steel and stainless steel using stainless steel electrodes. Welding process carried using Shielded Metal Arc Welding (SMAW) method nine specimens variations current and welding sequence. Tests conducted included impact strength and Vickers hardness tests weld metal and heat affected zone (HAZ) regions. Results show variations welding parameters significantly affect mechanical properties welded joints. Highest impact strength value 0.138 J/mm² obtained welding current 100A, while lowest value 0.056 J/mm² occurred at 120A due undercut defects. Highest hardness value was found HAZ region. Overall, welding current 100A produced more optimal joint properties.
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