Single-pulse MIG welded Perform 700 steel joints with various welding parameters

Yıl 2023, Cilt: 7 Sayı: 4, 246 - 252, 20.12.2023

Fatih Özen

https://doi.org/10.26701/ems.1387954

Öz

In this work, Perform 700 steel sheets with 5-mm thickness were welded with single pulse MIG welding method with different welding currents and welding speeds. The welded specimens were subjected to tensile tests, hardness measurements and microstructural observations. According to the results, the heat input has an important role in tensile strength of the joint. The maximum tensile strength was obtained as 594.75 MPa at 140A welding current and 450 mm/min welding speed. The tensile specimens were always separated between fusion zone and heat affected zone. The heat affected zones have exhibited tempered martensitic structure. The tempering effect have increased the sizes of the martensitic structure; therefore, the hardness was considerably increased. However, the fusion zone, which was consisted of bainitic structure inside the ferrite matrix, was exhibited soft and ductile behavior. The boundary of soft fusion zone and hard heat affected zone formed the weakest point through the joint.

Anahtar Kelimeler

Welding, Joining, Mechanical Properties, Perform steel, S700MC, Single pulse, MIG weld

Kaynakça

• [1] Park, G.W., Park, M., Kim, B.J., Shin, S., Kim, H.C., Park, I.W., et al., (2022). Microstructure and mechanical properties of a gas-tungsten-arc-welded Fe-24Mn-3.5Cr-0.4C high manganese steel pipe using a Fe-22Mn-2.34Ni-0.38C welding wire. Materials Characterization. 194(11): 1–12. doi: 10.1016/j.matchar.2022.112469.
• [2] Onar, V., (2022). Mechanical and Microstructural Characterizations of Resistance Spot Welded Dissimilar TWIP/304L Stainless Steel. Transactions of the Indian Institute of Metals. 75: 1731–1739. doi: 10.1007/s12666-021-02446-9.
• [3] Kekik, M., Özen, F., Onar, V., Aslanlar, S., (2022). Investigation effect of resistance spot welding parameters on dissimilar DP1000HF/CP800 steel joints. Sadhana - Academy Proceedings in Engineering Sciences. 47(4): 1–17. doi: 10.1007/s12046-022-01977-1.
• [4] Bjorhovde, R., (2004). Development and use of high-performance steel. Journal of Constructional Steel Research. 60(3–5): 393–400. doi: 10.1016/S0143-974X(03)00118-4.
• [5] Özsaraç, U., Onar, V., Özen, F., Aslanlar, Y.S., Akkaş, N., (2019). Effect of current and welding time on tensile-peel strength of resistance spot welded TWIP 1000 and martensitic steels. Indian Journal of Chemical Technology. 26(4): 248–51.
• [6] Özsaraç, U., Onar, V., Özen, F., Aslanlar, Y.S., Akkaş, N., (2019). Effect of welding time on tensile-shear load in resistance spot welded TRIP 800 and microalloyed steels. Indian Journal of Chemical Technology. 26(4): 355–7.
• [7] Lun, N., Saha, D.C., Macwan, A., Pan, H., Wang, L., Goodwin, F., et al., (2017). Microstructure and mechanical properties of fiber laser welded medium manganese TRIP steel. Materials and Design. 131: 450–9. doi: 10.1016/j.matdes.2017.06.037.
• [8] Hong, S.-H., Eo, D.-R., Lee, S., Cho, J.-W., Kim, S.-J., (2023). Strong resistance to Zn-assisted liquid metal embrittlement of austenitic-TWIP/martensitic-HSLA multi-layered steel sheets additively manufactured by laser cladding. Acta Materialia. 258(March): 119224. doi: 10.1016/j.actamat.2023.119224.
• [9] Shreyas, P., Panda, B., Vishwanatha, A.D., (2021). Embrittlement of hot-dip galvanized steel: A review. AIP Conference Proceedings, vol. 2317. p. 1–15.
• [10] Phung, T.A., (2022). Experimental study on mechanical properties and microstructure of PERFORM 700 steel butt-welding joints using in high load-bearing structures. Journal of Science and Technique. 17(1): 53–63. doi: 10.56651/lqdtu.jst.v17.n01.301.
• [11] Petronis, E., Cerwenka, G., Emmelmann, C., (2017). Hybrid laser-arc welding of steel S700MC butt joints under different sheet thickness.
• [12] Silva, A., Szczucka-Lasota, B., Węgrzyn, T., Jurek, A., (2019). MAG welding of S700MC steel used in transport means with the operation of low arc welding method. Welding Technology Review. 91(3): 23–8. doi: 10.26628/wtr.v91i3.1043.
• [13] Szymczak, T., Makowska, K., Kowalewski, Z.L., (2020). Influence of the welding process on the mechanical characteristics and fracture of the s700mc high strength steel under various types of loading. Materials. 13(22): 1–17. doi: 10.3390/ma13225249.
• [14] Ferdinandov, N., Gospodinov, D., Ilieva, M., Radev, R., (2021). Influence of Weld Joint Preparation on the Mechanical Properties of High Strength Steel S700Mc Weldments. METAL 2021 - 30th Anniversary International Conference on Metallurgy and Materials, Conference Proceedings.: 441–6. doi: 10.37904/metal.2021.4149.
• [15] Moravec, J., Sobotka, J., Novakova, I., Bukovska, S., (2021). Assessment the partial welding influences on fatigue life of s700mc steel fillet welds. Metals. 11(2): 1–16. doi: 10.3390/met11020334.
• [16] Tomków, J., Świerczyńska, A., Landowski, M., Wolski, A., Rogalski, G., (2021). Bead-on-Plate Underwater Wet Welding on S700MC Steel. Advances in Science and Technology Research Journal. 15(3): 288–96. doi: 10.12913/22998624/140223.
• [17] Schmidová, E., Bozkurt, F., Culek, B., Kumar, S., Kuchariková, L., Uhríčik, M., (2019). Influence of Welding on Dynamic Fracture Toughness of Strenx 700MC Steel. Metals. 9(5): 494. doi: 10.3390/met9050494.
• [18] Kik, T., Górka, J., Kotarska, A., Poloczek, T., (2020). Numerical Verification of Tests on the Influence of the Imposed Thermal Cycles on the Structure and Properties of the S700MC Heat-Affected Zone. Metals. 10(7): 974. doi: 10.3390/met10070974.
• [19] Kik, T., Moravec, J., Švec, M., (2020). Experiments and Numerical Simulations of the Annealing Temperature Influence on the Residual Stresses Level in S700MC Steel Welded Elements. Materials. 13(22): 5289. doi: 10.3390/ma13225289.
• [20] Šebestová, H., Horník, P., Mrňa, L., Jambor, M., Horník, V., Pokorný, P., et al., (2020). Fatigue properties of laser and hybrid laser-TIG welds of thermo-mechanically rolled steels. Materials Science and Engineering: A. 772(December 2019): 138780. doi: 10.1016/j.msea.2019.138780.
• [21] ONAR, V., (2020). Robotik MAG Kaynak Metodunda XAR 500 Serisi Çeliklerin Mikrosertliğine Farklı Kaynak Akımlarının ve Hızlarının Etkisi. Düzce Üniversitesi Bilim ve Teknoloji Dergisi. 8(1): 1193–203. doi: 10.29130/dubited.646727.
• [22] Fayazi Khanigi, A., Farnia, A., Ardestani, M., Torkamany, M.J., (2020). Microstructure and mechanical properties of low power pulsed Nd:YAG laser welded S700MC steel. Sadhana - Academy Proceedings in Engineering Sciences. 45(1): 1–13. doi: 10.1007/s12046-020-1279-6.