Abstract
Keyhole gas tungsten arc (K-TIG) welding with water cooling system was used to weld high-strength low-alloy steel of mid-thickness (thickness ranging 6–13 mm). Q345 plates of 8-mm thickness were jointed in a single pass without filler metal. The weld properties, including mechanical properties and microstructure, were analyzed. The maximum tensile strength of the weld was similar with that of the base metal, while the elongation and impact property of the weldment were decreased compared with the base metal. The numerical simulation result revealed that water cooling method used in K-TIG welding is greatly helpful in reducing the volume of the welding pool due to the enhanced cooling effect. Additionally, improved holding power of the welding pool can be obtained due to the increased surface tension.
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References
Lathabai S, Jarvis BL, Barton KJ (2001) Comparison of keyhole and conventional gas tungsten arc welds in commercially pure titanium. Mater Sci Eng A 299:81–93. doi:10.1016/S0921-5093(00)01408-8
Lathabai S, Jarvis BL, Barton KJ (2008) Keyhole gas tungsten arc welding of commercially pure zirconium. Sci Technol Weld Join 13(6):573–581. doi:10.1179/136217108X329296
Feng YQ, Luo Z, Liu ZM, Li Y, Luo YC, Huang YX (2015) Keyhole gas tungsten arc welding of AISI 316L stainless steel. Mater Des 85:24–31. doi:10.1016/j.matdes.2015.07.011
Jarvis BL (2001) Keyhole gas tungsten arc welding: a new process variant. Dissertation, University of Wollongong
Rosenthal D (1941) Mathematical theory of heat distribution during welding and cutting. Weld J 20(5):220–234
Rosenthal R (1946) Theory of moving sources of heat and its applications to metal treatments. Trans ASME 68:849–866
Bai JY, Yang CL, Lin SB, Dong BL, Fan CL (2016) Mechanical properties of 2219-Al components produced by additive manufacturing with TIG. Int J Adv Manuf Technol 86(1–4):479–485. doi:10.1007/s00170-015-8168-x
Mostafapour A, Gholizadeh V (2014) Experimental investigation of the effect of vibration on mechanical properties of 304 stainless steel welded parts. Int J Adv Manuf Technol 70(5–8):1113–1124. doi:10.1007/s00170-013-5350-x
Jarvis BL, Ahmed NU (2000) Development of keyhole mode gas tungsten arc welding process. Sci Technol Weld Join 5(1):21–1718. doi:10.1179/136217100322910624
Li SL (2009) Physical chemistry. Beijing, China
Wei C, Zhang J, Yang S, Sun L, Tao W, Wu F, Xia W (2015) Improving formability of laser welded automotive dual phase steels with local cooling. Sci Technol Weld Join 20(2):145–154. doi:10.1179/1362171814Y.0000000263
Manikandan SGK, Sivakumar D, Rao KP, Kamaraj M (2014) Microstructural characterization of liquid nitrogen cooled alloy 718 fusion zone. J Mater Process Technol 214(12):3141–3149. doi:10.1016/j.jmatprotec.2014.07.022
Hamatani H, Miyazaki Y, Otani T, Ohkita S (2006) Minimization of heat-affected zone size in welded ultra-fine grained steel under cooling by liquid nitrogen during laser welding. Mater Sci Eng A 426(1–2):21–30. doi:10.1016/j.msea.2006.03.024
Zhang HJ, Liu HJ, Yu L (2012) Effect of water cooling on the performances of friction stir welding heat-affected zone. Journal of Mater Eng Performance 21(7):1182–1187. doi:10.1007/s11665-011-0060-8
Mofid MA, Abdollah-zadeh A, Malek GF (2012) The effect of water cooling during dissimilar friction stir welding of Al alloy to Mg alloy. Mater Des 36:161–167. doi:10.1016/j.matdes.2011.11.004
Nathana SR, Balasubramanian V, Malarvizhi S, Rao AG (2015) Effect of welding processes on mechanical and microstructural characteristics of high strength low alloy naval grade steel joints. Defence Technology 11:308–317. doi:10.1016/j.dt.2015.06.001
Hidetoshi F, Ling C, Nobuhiro T, Masakatsu M, Kazuhiro N, Kiyoshi N (2006) Friction stir welding of carbon steels. Mater Sci Eng A 429(1–2):429–507. doi:10.1016/j.msea.2006.04.118
Xiong Y, Hu XX (2012) The effect of microstructures on fatigue crack growth in Q345 steel welded joint. Fatigue Fract Eng Mater Struct 35:500–512. doi:10.1111/j.1460-2695.2011.01640.x
Lohse M, Füssel U, Schuster H, Friedel J, Schnick M (2013) Keyhole welding with CF-TIG (cathode focussed GTA). Weld World 57:735–741. doi:10.1007/s40194-013-0074-y
GB 2651 (2008) Tensile test methods on welded joints, general administration of quality supervision, inspection and quarantine of the People's Republic of China, China National Standardization Management Committee
GB 2650 (2008) Impact test methods on welded joints, general administration of quality supervision, inspection and quarantine of the People's Republic of China, China National Standardization Management Committee
Varghese VMJ, Suresh MR, Kumar DS (2013) Recent developments in modeling of heat transfer during TIG welding—a review. Int J Adv Manuf Technol 64(5–8):749–754. doi:10.1007/s00170-012-4048-9
Ranjbarnodeh E, Serajzadeh S, Kokabi AH, Hanke S, Fischer A (2011) Finite element modeling of the effect of heat input on residual stresses in dissimilar joints. Int J Adv Manuf Technol 55(5–8):649–656. doi:10.1007/s00170-010-3095-3
Zhao YB (2000) Practical manual pressure vessel materials: carbon and alloy steel. Beijing, China
Deng DA, Tong YG, Zhou ZY (2011) Numerical modeling of welding distortion in thin-walled mild steel pipe. Transactions of the China Welding Institution 32(2):81–84
Ma J, Kong F, Kovacevic R (2012) Finite-element thermal analysis of laser welding of galvanized high-strength steel in a zero-gap lap joint configuration and its experimental verification. Mater Des 36:348–358. doi:10.1016/j.matdes.2011.11.027
Kong F, Ma J, Kovacevic R (2011) Numerical and experimental study of thermally induced residual stress in the hybrid laser–GMA welding process. J Mater Process Technol 211(6):1102–1111. doi:10.1016/j.jmatprotec.2011.01.012
Qi XD, Song G (2010) Interfacial structure of the joints between magnesium alloy and mild steel with nickel as interlayer by hybrid laser-TIG welding. Mater Des 31(1):605–609. doi:10.1016/j.matdes.2009.06.043
Depover T, Wallaert E, Verbeken K (2016) Fractographic analysis of the role of hydrogen diffusion on the hydrogen embrittlement susceptibility of DP steel. Mater Sci Eng A 649:201–208. doi:10.1016/j.msea.2015.09.124
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Fan, W., Ao, S., Huang, Y. et al. Water cooling keyhole gas tungsten arc welding of HSLA steel. Int J Adv Manuf Technol 92, 2207–2216 (2017). https://doi.org/10.1007/s00170-017-0234-0
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DOI: https://doi.org/10.1007/s00170-017-0234-0