Using Recycled Machining Chips and Reduced Graphene Oxide in Spot Welding of Galvanized Sheets to Improve Hardness and Corrosion Resistance
نویسندگان
1 Department of Mechanical Engineering, Ferdowsi University of Mashhad, Mashhad, Iran
2 Department of Mechanical Engineering, College of Engineering, University of Tehran, Tehran, Iran
3 Aseman Nano Part Company, Gonabad, Iran
4 Nano Part Aseman Co.
5 Nano Part Aseman Co.
doi
10.22034/ijissi.2024.2027196.1289چکیده
In recent years, spot welding has received increasing attention from metal sheet-related industries due to its efficiency, high speed, and low operational costs. This study aims to enhance the spot welding properties of galvanized sheets by incorporating carbon-based and metallic reinforcements, utilizing recycled steel powder and synthesized reduced graphene oxide (RGO). The welding zone characteristics were analyzed using Scanning Electron Microscopy (SEM), X-ray Diffraction (XRD), hardness, and corrosion tests. The results from the conducted tests confirm the beneficial effects of incorporating RGO and recycled steel powder. The findings from the hardness and corrosion tests further validate the positive influence of RGO and recycled steel shavings powder on the material's performance. The hardness and corrosion resistance values improved significantly, with the unreinforced sample showing 209 HV and 0.25 μm/year, compared to 261.8 HV and 0.1 μm/year for the optimally reinforced sample.
