Comparative Study on the Weld Formation and Pore Distribution Characteristics, Microstructure, and Mechanical Properties of High-Strength Al-Mg-Si-Cu Aluminum Alloy Cold Metal Transfer Mix Synchro-Pulse Welded Joints
Source abstract
Abstract
The cold metal transfer mix synchro-pulse (CMT + SP) processes consist of the low-frequency pulse (LFP), high-frequency pulse (HFP), and CMT stages. Compared to the pulse stage (fP = 70 Hz) of the traditional CMT plus pulse (CMT + P) process, the high pulsed frequency (fH = 80 Hz) of the HPF stages increased by 14.0%, increasing the arc force and the impact of droplets on the surface of the molten pool, enlarging the molten pool, and promoting the escape of bubbles. For the same heat input, using the CMT + SP produced a full penetration weld seam and decreased the number density and porosity of micropores to 0.6 pieces/mm2 and 0.1%, respectively. Due to the lack of unfused zone and low porosity, the average tensile strength, yield strength and elongation of the CMT + SP welded joints increased to 240, 173 MPa and 4.0%, respectively.
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Research context
OpenAlex topics: Advanced Welding Techniques Analysis · Aluminum Alloy Microstructure Properties · Welding Techniques and Residual Stresses
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
References (43)
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1. S.K. Panigrahi and R. Jayaganthan, A Study on the Mechanical Properties of Cryorolled Al-Mg-Si Alloy, Mater. Sci. Eng. A, 2008, 480(1–2), p 299–305. https://doi.org/10.1016/j.msea.2007.07.02410.1016/j.msea.2007.07.024 ↗
2. F.L. Zeng, Z.L. Wei, J.F. Li, C.X. Li, X. Tan, Z. Zhang, and Z.Q. Zheng, Corrosion Mechanism Associated with Mg2Si and Si Particles in Al-Mg-Si Alloys, Trans. Nonferrous Met. Soc. China, 2011, 21(12), p 2559–2567. https://doi.org/10.1016/S1003-6326(11)61092-310.1016/S1003-6326(11)61092-3 ↗
3. Q.J. Zheng, H.X. Jiang, J. He, J.L. Zhang, and J.Z. Zhao, Effect of Micro-Alloying La on Precipitation Behavior, Mechanical Properties and Electrical Conductivity of Al-Mg-Si Alloys, Sci. China Technol. Sci., 2021, 64(9), p 2012–2022. https://doi.org/10.1007/s11431-021-1863-510.1007/s11431-021-1863-5 ↗
4. F. Lu, J.K. Sunde, C.D. Marioara, R. Holmestad, and B. Homiedal, An Improved Modelling Framework for Strength and Work Hardening of Precipitate Strengthened Al-Mg-Si Alloys, Mater. Sci. Eng. A, 2022, 832, p 142500. https://doi.org/10.1016/j.msea.2021.14250010.1016/j.msea.2021.142500 ↗
5. H. Granum, O.R. Myhr, T. Borvik, and O.S. Hopperstad, Effect of Pre-Stretching on the Mechanical Behaviour of three Artificially Aged 6xxx series Aluminium Alloys, Mater. Today Commun., 2021, 27, p 102408. https://doi.org/10.1016/j.mtcomm.2021.10240810.1016/j.mtcomm.2021.102408 ↗
6. M.W. Zandbergen, A. Cerezo, and G.D.W. Smith, Study of Precipitation in Al-Mg-Si Alloys by Atom Probe Tomography II. Influence of Cu Additions, Acta Mater., 2015, 101, p 149–158. https://doi.org/10.1016/j.actamat.2015.08.01810.1016/j.actamat.2015.08.018 ↗
7. L.D. Ding, Z.H. Jia, Z.Q. Zhang, R.E. Sanders, and G. Yang, The Natural Aging and Precipitation Hardening Behaviour of Al-Mg-Si-Cu Alloys with Different Mg/Si Ratios and Cu Additions, Mater. Sci. Eng. A, 2015, 627, p 119–126. https://doi.org/10.1016/j.msea.2014.12.08610.1016/j.msea.2014.12.086 ↗
8. Y. Han, K. Ma, L. Li, W. Chen, and H. Nagaumi, Study on Microstructure and Mechanical Properties of Al-Mg-Si-Cu Alloy with High Manganese Content, Mater. Des., 2012, 39, p 418–424. https://doi.org/10.1016/j.matdes.2012.01.03410.1016/j.matdes.2012.01.034 ↗
9. X. He, Q.L. Pan, H. Li, Z.Q. Huang, S.H. Liu, K. Li, and X.Y. Li, Effect of Artificial Aging, Delayed Aging, and Pre-Aging on Microstructure and Properties of 6082 Aluminum Alloy, Metals, 2019, 9(2), p 173. https://doi.org/10.3390/met902017310.3390/met9020173 ↗
10. L. Chen, S.W. Yuan, D.M. Kong, G.Q. Zhao, Y.Y. He, and G.S. Zhang, Influence of Aging Treatment on the Microstructure, Mechanical Properties and Anisotropy of Hot Extruded Al-Mg-Si Plate, Mater. Des., 2019, 182, p 107999. https://doi.org/10.1016/j.matdes.2019.10799910.1016/j.matdes.2019.107999 ↗
11. W.K. Zhang, H. He, C.C. Xu, W.Y. Yu, and L.X. Li, Precipitates Dissolution, Phase Transformation, and Re-Precipitation-Induced Hardness Variation in 6082-T6 Alloy During MIG Welding and Subsequent Baking, JOM, 2019, 71(8), p 2711–2720. https://doi.org/10.1007/s11837-019-03375-110.1007/s11837-019-03375-1 ↗
12. A. Hadadzadeh, M.M. Ghaznavi, and A.H. Kokabi, The Effect of Gas Tungsten arc Welding and Pulsed-Gas Tungsten arc Welding Processes’ Parameters on the Heat Affected Zone-Softening Behavior of Strain-Hardened Al-6.7 Mg Alloy, Mater. Des., 2014, 55, p 335–342. https://doi.org/10.1016/j.matdes.2013.09.06110.1016/j.matdes.2013.09.061 ↗
13. A. Kumar and S. Sundarrajan, Effect of Welding Parameters on Mechanical Properties and Optimization of Pulsed TIG Welding of Al-Mg-Si Alloy, Int. J. Adv. Manuf. Technol., 2009, 42(1), p 118–125. https://doi.org/10.1007/s00170-008-1572-810.1007/s00170-008-1572-8 ↗
14. R. Braun, C.D. Donne, and G. Staniekt, Laser Beam Welding and Friction Stir Welding of 6013-T6 Aluminium Alloy Sheet, Mater. Sci. Eng. Technol., 2000, 31(12), p 1017–1026. https://doi.org/10.1002/1521-4052(200012)31:12%3c1017::AID-MAWE1017%3e3.0.CO;2-P10.1002/1521-4052(200012)31:12<1017::AID-MAWE1017>3.0.CO;2-P ↗
15. A. Schierl, The CMT Process a Revolution in Welding Technology, Weld. World Lond., 2005, 49(I), p 38.
16. K. Furukawa, New CMT arc Welding Process–Welding of Steel to Aluminium Dissimilar Metals and Welding of Super-Thin Aluminium Sheets, Weld. Int., 2006, 20(6), p 440–445. https://doi.org/10.1533/wint.2006.359810.1533/wint.2006.3598 ↗
17. C.G. Pickin and K. Young, Evaluation of Cold Metal Transfer (CMT) Process for Welding Aluminium Alloy, Sci. Technol. Weld. Join., 2006, 11(5), p 583–585. https://doi.org/10.1179/174329306X12088610.1179/174329306X120886 ↗
18. J. Pang, S.S. Hu, J.Q. Shen, P. Wang, and Y. Liang, Arc Characteristics and Metal Transfer Behavior of CMT+ P Welding Process, J. Mater. Process. Technol., 2016, 238, p 212–217. https://doi.org/10.1016/j.jmatprotec.2016.07.03310.1016/j.jmatprotec.2016.07.033 ↗
19. B.Q. Cong, R.J. Ouyang, B.J. Qi, and J.L. Ding, Influence of Cold Metal Transfer Process and its Heat Input on Weld Bead Geometry and Porosity of Aluminum-Copper Alloy Welds, Rare Met. Mater. Eng., 2016, 45(3), p 606–611. https://doi.org/10.1016/S1875-5372(16)30080-710.1016/S1875-5372(16)30080-7 ↗
20. P.C. Huan, X.N. Wang, J. Zhang, Z.R. Hu, and H.S. Di, Effect of Wire Composition on Microstructure and Properties of 6063 Aluminium Alloy Hybrid Synchronous Pulse CMT Welded Joints, Mater. Sci. Eng. A, 2020, 790, p 139713. https://doi.org/10.1016/j.msea.2020.13971310.1016/j.msea.2020.139713 ↗
21. C. Zhang, M. Gao, D.Z. Wang, J. Yin, and X.Y. Zeng, Relationship Between Pool Characteristic and Weld Porosity in Laser arc Hybrid Welding of AA6082 Aluminum Alloy, J. Mater. Process. Technol., 2017, 240, p 217–222. https://doi.org/10.1016/j.jmatprotec.2016.10.00110.1016/j.jmatprotec.2016.10.001 ↗
22. C. Zhang, Y.F. Li, M. Gao, and X.Y. Zeng, Wire arc Additive Manufacturing of Al-6Mg Alloy Using Variable Polarity Cold Metal Transfer arc as Power Source, Mater. Sci. Eng., A, 2018, 711, p 415–423. https://doi.org/10.1016/j.msea.2017.11.08410.1016/j.msea.2017.11.084 ↗
23. M.X. Yang, Y. Zhou, and B.J. Qi, Study on Surface Depression of Ti-6Al-4V with Ultra High Frequency Pulsed GTAW, Metall. Mater. Trans. B Process. Metall. Mater. Process. Sci., 2015, 46(4), p 1935–1941. https://doi.org/10.1007/s11663-015-0381-310.1007/s11663-015-0381-3 ↗
24. S.L. Rokhlin and A.C. Guu, A Study of arc Force, Pool Depression, and Weld Penetration during Gas Tungsten arc Welding, Weld. J. (USA), 1993, 72(8), p 381. https://doi.org/10.1016/0956-716X(93)90525-W10.1016/0956-716X(93)90525-W ↗
25. M.X. Yang, L. Li, B.J. Qi, and H. Zheng, Arc Force and Shapes with High-Frequency Pulsed-arc Welding, Sci. Technol. Weld. Join., 2017, 22(7), p 580–586. https://doi.org/10.1080/13621718.2016.127762510.1080/13621718.2016.1277625 ↗
26. F. Fetzer, M. Sommer, R. Weber, J.P. Weberpals, and T. Graf, Reduction of Pores by Means of Laser Beam Oscillation during Remote Welding of AlMgSi, Opt. Lasers Eng., 2018, 108, p 68–77. https://doi.org/10.1016/j.optlaseng.2018.04.01210.1016/j.optlaseng.2018.04.012 ↗
27. L. Zhao, T. Sugino, G. Arakane, and S. Tsukamoto, Influence of Welding Parameters on Distribution of Wire Feeding Elements in CO2 Laser GMA Hybrid Welding, Sci. Technol. Weld. Join., 2009, 14(5), p 457–467. https://doi.org/10.1179/136217109X43425210.1179/136217109X434252 ↗
28. Y.P. Wang, B.Q. Cong, B.J. Qi, X. Chen, Y.H. Yin, and S.B. Lin, Influence of Low-Pulsed Frequency on arc Profile and Weld Formation Characteristics in Double-Pulsed VPTIG Welding of Aluminium Alloys, J. Manuf. Process., 2020, 58, p 1211–1220. https://doi.org/10.1016/j.jmapro.2020.09.02510.1016/j.jmapro.2020.09.025 ↗
29. K.Y. Wu, N. Ding, T. Yin, M. Zeng, and Z.Y. Liang, Effects of Single and Double Pulses on Microstructure and Mechanical Properties of Weld Joints During High-Power Double-Wire GMAW, J. Manuf. Process., 2018, 35, p 728–734. https://doi.org/10.1016/j.jmapro.2018.08.02510.1016/j.jmapro.2018.08.025 ↗
30. Z.P. Que and C.L. Mendis, Heterogeneous Nucleation and Phase Transformation of Fe-rich Intermetallic Compounds in Al-Mg-Si Alloys, J. Alloys Compd., 2020, 836, p 155515. https://doi.org/10.1016/j.jallcom.2020.15551510.1016/j.jallcom.2020.155515 ↗
31. S.X. Ji, W.C. Yang, F. Gao, D. Watson, and Z.Y. Fan, Effect of Iron on the Microstructure and Mechanical Property of Al-Mg-Si-Mn and Al-Mg-Si Diecast Alloys[J], Mater. Sci. Eng. A, 2013, 564, p 130–139. https://doi.org/10.1016/j.msea.2012.11.09510.1016/j.msea.2012.11.095 ↗
32. X. Wang, S. Esmaeili, and D.J. Lloyd, The Sequence of Precipitation in the Al-Mg-Si-Cu Alloy AA6111, Metall. Mater. Trans. A, 2006, 37(9), p 2691–2699. https://doi.org/10.1007/BF0258610310.1007/BF02586103 ↗
33. S.H. Yan, B.B. Xing, H.Y. Zhou, Y. Xiao, Q.H. Qin, and H. Chen, Effect of Filling Materials on the Microstructure and Properties of Hybrid Laser Welded Al-Mg-Si Alloys Joints, Mater. Charact., 2018, 144, p 205–218. https://doi.org/10.1016/j.matchar.2018.07.01810.1016/j.matchar.2018.07.018 ↗
34. X.X. Zhang, B. Liu, X.R. Zhou, J.J. Wang, T. Hashimoto, C. Lou, Z.H. Sun, Z.H. Tang, and F. Lu, Laser Welding Introduced Segregation and its Influence on the Corrosion Behaviour of Al-Cu-Li Alloy, Corros. Sci., 2018, 135, p 177–191. https://doi.org/10.1016/j.corsci.2018.02.04410.1016/j.corsci.2018.02.044 ↗
35. N.S. Bailey, K.M. Hong, and Y.C. Shin, Comparative Assessment of Dendrite Growth and Microstructure Predictions during Laser Welding of Al 6061 via 2D and 3D Phase Field Models, Comput. Mater. Sci., 2020, 172, p 109291. https://doi.org/10.1016/j.commatsci.2019.10929110.1016/j.commatsci.2019.109291 ↗
36. Y.Y. Weng, Z.H. Jia, L.P. Ding, Y.F. Pan, Y.Y. Liu, and Q. Liu, Effect of Ag and Cu Additions on Natural Aging and Precipitation Hardening Behavior in Al-Mg-Si Alloys, J. Alloys Compd., 2017, 695, p 2444–2452. https://doi.org/10.1016/j.jallcom.2016.11.14010.1016/j.jallcom.2016.11.140 ↗
37. F.Z. Liu, J. Qin, Z. Li, C.B. Yu, X. Zhu, H. Nagaumi, and B. Zhang, Precipitation of Dispersoids in A-Mg-Si Alloys with Cu Addition, J. Mater. Res. Technol., 2021, 14, p 3134–3139. https://doi.org/10.1016/j.jmrt.2021.08.12310.1016/j.jmrt.2021.08.123 ↗
38. H. Liu, S. Yang, and C. Xie et al., Microstructure Characterization and Mechanism of Fatigue Crack Initiation Near Pores for 6005A CMT Welded Joint[J], Mater. Sci. Eng. A, 2017, 707, p 22–29.10.1016/j.msea.2017.09.029 ↗
39. D. Su, J. Zhang, and B. Wang, The Microstructure and Weldability in Welded Joints for AA 5356 Aluminum Alloy After Adding Modified Trace Amounts of Sc and Zr, J. Manuf. Process., 2020, 57, p 488–498. https://doi.org/10.1016/j.jmapro.2020.07.01710.1016/j.jmapro.2020.07.017 ↗
40. S.B. Zhong, S. Han, J.Q. Chen, J.K. Ren, Z.X. Zhou, F. Wen, L. Qi, and R.G. Guan, Microstructure and Properties of 7075 Aluminum Alloy Welding Joint Using Different Filler Metals, Mater. Today Commun., 2022, 31, p 103260. https://doi.org/10.1016/j.mtcomm.2022.10326010.1016/j.mtcomm.2022.103260 ↗
41. S.K. Wu, C. Wang, Z.X. Li, P. Wen, S. Zhang, Z.D. Mao, and X.H. Han, Effect of Nb Micro-Alloying on Microstructure and Properties of A7204-T4 Aluminum Alloy Joints with Fiber Laser-VPTIG Hybrid Welding, Weld. World, 2020, 64(9), p 1459–1469. https://doi.org/10.1007/s40194-020-00923-110.1007/s40194-020-00923-1 ↗
42. R. Braun, Laser Beam Welding of Al-Mg-Si-Cu Alloy 6013 Sheet Using Silicon Rich Aluminium Filler Powders, Mater. Sci. Technol., 2005, 21(1), p 133–140. https://doi.org/10.1179/174328405X1622510.1179/174328405X16225 ↗
43. K.E. Knipling, D.C. Dunand, and D.N. Seidman, Criteria for Developing Castable, Creep-Resistant Aluminum-Based Alloys–A Review, Int. J. Mater. Res., 2006, 97(3), p 246–265. https://doi.org/10.3139/ijmr-2006-004210.3139/ijmr-2006-0042 ↗