Abstract
In this study, the weldability of mild steel coated with different Zn-based materials to prevent corrosion with resistance spot welding process was investigated. For this purpose, the surfaces of mid steel were coated with pure Zn, Galfan (Zn5Al) and ZA12 (Zn11Al1Cu) alloys. Hot dipping technique was used for coating. Mild steels with dimension of 1.5X15X40 mm were immersed in the melted Zn and alloys, and the surfaces were coated by waiting for 2 minutes. Steel and coated steel pairs were joined by resistance spot welding process. The welding interface microstructures were examined under light optical microscopy (LOM). Weld interface strengths were measured by axial shear tests. The tests were performed at the room temperature and with a tensile speed of 5mmmin-1. Microstructure investigations showed a good bonding occurred between the coating and the steel and between the welded materials. Mechanical tests have shown that coating the steel reduces the weld strength and the decrease in strength continues with the increase of alloying elements in the coating.
Keywords
References
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Abstract
References
- Babua N.K, Brauserb, S., Rethmeier M., & Cross C.E. (2012). Characterization of microstructure and deformation behaviour of resistance spot welded AZ31 magnesium alloy, Materials Science and Engineering A, 549, 149– 156.
- Baytemir, M. (2011). Ostenitik AISI 310-ferritik AISI 430 paslanmaz çeliklerin elektrik direnç nokta kaynağı ile birleştirilmesi ve mekanik özelliklerinin incelenmesi [Yüksek Lisans Tezi, Sakarya Üniversitesi].
- Bemani M., Pouranvari, M. (2020). Microstructure and mechanical properties of dissimilar nickel-based superalloys resistance spot welds, Materials Science & Engineering A, 773, 138825
- Han, L. Thornton, M. Shergold, M. (2010). A comparison of the mechanical behavior of self-piercing riveted and resistance spot welded aluminum sheets for the automotive industry. Materials and Design, 31, 1457–1467.
- Hayat, F. (2005). Çift-fazlı çeliklerin nokta direnç kaynağında MHO ile kaynak süresinin mekanik özelliklere etkisi [Yüksek Lisans Tezi, Zonguldak Karaelmas Üniversitesi].
- Kahraman, N. (2007). The influence of welding parameters on the joint strength of resistance spot-welded titanium sheets. Materils and Design, 28, 420–427.
- Qiu, R. Iwamoto, C. Satonaka, S. (2009). Interfacial microstructure and strength of steel/ aluminum alloy joints welded by resistance spot welding with cover plate. Journal of Materials Processing Technology, 209 4186–4193.
- Shirmohammadi, D., Movahedi, M., Pouranvari, M. (2017). Resistance spot welding of martensitic stainless steel: Effect of initial basemetal microstructure on weld microstructure and mechanical performance, Materials Science & Engineering A, 703, 154–161
- Yener, S. (1999). Otomotiv sanayinde kullanılan direnç nokta kaynak elektrodu ömrünün deneysel analizi. [Yüksek Lisans Tezi, İTÜ Fen Bilimleri Enstitüsü].
Details
| Primary Language | English |
|---|---|
| Subjects | Engineering |
| Journal Section | Articles |
| Authors | |
| Publication Date | December 31, 2021 |
| Published in Issue | Year 2021Volume: 16 |
