DOI: 10.5937/jaes0-41037
This is an open access article distributed under the CC BY 4.0
Volume 21 article 1099 pages: 577-586
Precipitation hardening aluminium alloy sheets AA2017-T4 are welded by FSW on a conventional FSW tool. A macrograph of the cross section of the butt-welded joint shows the classical zones for such welding, namely the nugget zone, the thermo-mechanically affected zone and the heat affected zone. Scanning Electron Microscopy displays a grain refining and a re-formation of the precipitates in the nugget zone. Micro-hardness measurements on the cross-section perpendicular to the welding direction give the standard W-profile of the hardness for such welding, with as expected, the relatively highest value at the joint center (nugget zone). To assess the mechanical performance of the FSW welded joint, the Disk Pressure Test (DPT) is used. It shows a failure pressure for the welded specimen that is 17% lower than the base material. The fracture surface micrographs clearly show a thickness reduction at break that is ~36% higher for the base material than the welding joint and a ductile fracture mode for both specimens.
1. Thomas, W.M., Nicholas, E.D., Needham, J.C., Murch, M.G., Temple-Smith, P., Dawes, C.J. (1991). Friction stir butt welding. International patent application No. PCT/GB92/02203, 1991.GB Patent No. 9125978.8
2. Gangwar,K., Ramulu,M. (2018). Friction stir welding of titanium alloys: A review. Materials & Design, vol. 141, 230-255, DOI: 10.1016/j.matdes.2017.12.033
3. Mishra, R.S., Ma, Z.Y. (2005). Friction stir welding and processing. Materials Science and Engineering, vol. 50, no. 1-2, 1-78, DOI: 10.1016/j.mser.2005.07.001
4. Kusharjanta, B., Soenoko, R., Purnowidodo, A., Irawan, Y.S. (2022). Analysis of tensile strength, crystallinity, crystallite size, and thermalstability of polypropylene joined by friction stir welding. Journal of Applied Engineering Science, vol. 20, no. 1, 85-90, DOI: 10.5937/jaes0-30899
5. Eslami, S., Tavares, P.J., Moreira, P.M.G.P. (2017). Friction stir welding tooling for polymers: review and prospects. International Journal of Advanced Manufacturing Technology, vol. 89, no. 5-8, 1677–1690. DOI: 10.1007/s00170-016-9205-0
6. Raj, A., Pratap Kumar, J., Melwin Rego, A., Sunit Rout, I. (2021). Optimization of friction stir welding parameters during joining of AA3103 and AA7075 aluminium alloys using Taguchi method, Materials Today: Proceedings, vol. 46, no. 17, 7733-7739, DOI: 10.1016/j.matpr.2021.02.246
7. Hassanifard, S., Ghiasvand, A., Hashemi, S.M., Varvani-Farahani, A. (2022). The effect of friction stir welding tool shape on tensile properties of welded Al 6061-T6 joints. Materials Today: Communications, vol. 31, no. 103457, DOI: 10.1016/j.mtcomm.2022.103457
8. Sharma, A., Khan, Z. A., Siddiqueeb, A.N. (2022). A short review of the effect of plunge depth on friction stir welding of aluminium pipes. Materials Today: Proceedings, vol. 64, no. 3, 1504-1506, DOI: 10.1016/j.matpr.2022.05.257
9. Muthumanickam, A., Gandham, P., Dhenuvakonda, S. (2019). Effect of Friction Stir Welding Parameters on Mechanical Properties and Microstructure of AA2195 Al–Li Alloy Welds. Transaction Indian Institute of Metals, vol. 72, no. 6, 1557-1561, DOI: 10.1007/s12666-019-01570-x
10. Wang, Z.B., He, Z.B., Fan, X.B., Zhou, L., Lin, Y.L., Yuan, S.J. (2017). High temperature deformation behavior of friction stir welded 2024-T4 aluminum alloy sheets. Journal of Materials and Processing Technology, vol. 247, 184-191, DOI: 10.1016/j.jmatprotec.2017.04.015
11. Tan, M., Wu, C., Su, H. (2023). Ultrasonic effects on microstructures and mechanical properties of friction stir weld joints of dissimilar AA2024/AZ31B alloys. Welding in the World, vol. 67, 373–384, DOI: 10.1007/s40194-022-01429-8
12. Sánchez Egea A.J., Rodríguez A., Celentano D., Calleja A., López de Lacalle L.N. (2019). Joining metrics enhancement when combining FSW and ball-burnishing in a 2050 aluminium alloy. Surface and Coatings Technology, vol. 367, 327-335, DOI: 10.1016/j.surfcoat.2019.04.010
13. Ahmed, M.M.Z., Ataya, S., El-Sayed Seleman, M.M., Ammar, H.R., Ahmed, E. (2017). Friction stir welding of similar and dissimilar AA7075 and AA5083. Journal of Materials Processing Technology, vol. 242, 77–91, DOI: 10.1016/j.jmatprotec.2016.11.024
14. Xu, W., Li, Z., Sun, X. (2017). Effect of Welding Speed on Mechanical Properties and the Strain-Hardening Behavior of Friction Stir Welded 7075 Aluminum Alloy Joints. Journal of Materials Engineering and Performance, vol. 26, no. 4, 1938-1946, DOI: 10.1007/s11665-017-2618-6
15. Nova Ajay Joseph, R., Jishadh Ahmed, K.A., Mohamed Rizwaan, M., Rajendran, C. (2021). Effect of artificial ageing on microstructural behaviour of friction stir welded AA2014 aluminium alloy joints. Materials Today: Proceedings, vol. 45, no. 2, 891-894, DOI: 10.1016/j.matpr.2020.02.937
16. Ramamoorthi, R., Yuvaraj, K.P., Gokul, C., Eashwar, S.J., Arunkumar, N., Abith Tamil Dheen, S. (2021). An investigation of the impact of axial force on friction stir-welded AA5086/AA6063 on microstructure and mechanical properties butt joints. Materials Today: Proceedings, vol. 37, no. 2, 3159-3163, DOI: 10.1016/j.matpr.2020.09.050
17. Mugada, K.K., Adepu, K. (2018). Influence of ridges shoulder with polygonal pins on material flow and friction stir weld characteristics of 6082 aluminum alloy. Journal of Manufacturing Processes, vol. 32, 625-634, DOI: 10.1016/j.jmapro.2018.03.034
18. Hou, W., Ding, Y., Huang, G. et al. Huda, N., Shah, LHA., Piao, Z., Shen, Y., Shen, Z., Gerlich, A. (2022).The role of pin eccentricity in friction stir welding of Al-Mg-Si alloy sheets: microstructural evolution and mechanical properties. The International Journal of Advanced Manufacturing Technology, vol. 121, 7661–7675, DOI: 10.1007/s00170-022-09793-x
19. Bozkurt, Y., Boumerzoug, Z. (2018). Tool material effect on the friction stir butt welding of AA2124-T4 Alloy Matrix MMC. Journal of Materials Research and Technology, vol. 7, no. 1, 29-38, DOI: 10.1016/j.jmrt.2017.04.001
20. Liu, F., Sun, Z., Tuo, Y., Ji, Y., Bai, Y.X. (2020).Effect of shoulder geometry and clamping on microstructure evolution and mechanical properties of ultra-thin friction stir-welded Al6061-T6 plates. The International Journal of Advanced Manufacturing Technology, vol. 106, 1465–1476, DOI: 10.1007/s00170-019-04795-8
21. Hasan, M.M., Ishak, M., Rejab, M. (2017). Effect of backing material and clamping system on the tensile strength of dissimilar AA7075-AA2024 friction stir welds. The International Journal of Advanced Manufacturing Technology, vol. 91, 3991–4007, DOI: 10.1007/s00170-017-0033-7
22. Lakshmi, A.A., Kumar, B.S., Kumar, M.N., Vasanth Naik, R. (2022). Hot forming behaviour of tailor welded aluminium (AA6061- AA8011) alloy sheets using friction stir welding. International Journal on Interactive Design and Manufacturing , DOI: 10.1007/s12008-022-00946-6
23. Kumar, P., Sharma, S. (2021). Influence of FSW Process Parameters on Formability and Mechanical Properties of Tailor Welded Blanks AA6082-T6 and AA5083-O Using RSM with GRA-PCA Approach. Transactions of the Indian Institute of Metals, vol. 74, no. 8, 1943-1968, DOI: 10.1007/s12666-021-02255-0
24. Ardon, K., Charles, Y., Gaspérini, M., Furtado, J., (2013). A Numerical and Experimental Study of the Disk Pressure Test, ASME 2013 Pressure Vessels and Piping Conference 2013, p. 1-8
25. Briottet, L., Moro, I., Lemoine, P. (2012). Quantifying the hydrogen embrittlement of pipeline steels for safety considerations. International Journal of Hydrogen Energy, vol. 37, no. 22, 17616-17623, DOI: 10.1016/j.ijhydene.2012.05.143
26. Sudhagar, S., Sakthivel, M., Mathew, P.J., Daniel, S. A. A. (2017). A multi criteria decision making approach for process improvement in friction stir welding of aluminum alloy. Measurement, vol. 108, 1-8, DOI: 10.1016/j.measurement.2017.05.023
27. Rajakumar, S., Balasubramanian, V. (2012). Establishing relationships between mechanical properties of aluminium alloys and optimised friction stir welding process parameters. Materials and Design, vol. 40, 17-35, DOI: 10.1016/j.matdes.2012.02.054
28. Scialpi, A., De Giorgi, M., De Filippis, L.A.C., Nobile, R., Panella, F.W. (2008). Mechanical analysis of ultra-thin friction stir welding joined sheets with dissimilar and similar materials. Materials & Design, vol. 29, no. 5, 928-936, DOI:10.1016/j.matdes.2007.04.006
29. Su, J.-Q., Nelson, T.W., Mishra, R., Mahoney, M. (2003). Microstructural investigation of friction stir welded 7050- T651 aluminum. Acta Materalia, vol. 51, no. 3, 713-729, DOI: 10.1016/S1359-6454(02)00449-4
30. Tao, W., Shuwei, D., Matsuda, K., Yong, Z. (2022). Dynamic recrystallization and dynamic precipitation in AA6061 aluminum alloy during friction stir welding. Transactions of the Indian Institute of Metals, vol. 75, no. 5, 1329-1339, DOI: 10.1007/s12666-021-02490-5
31. Chen, P., Zou, S., Chen, J., Qin, S., Yang, Q., Zhanga, Z., Jia, Z., Zhang, L., Jiang,T., Liu, Q. (2021). Effect of rotation speed on microstructure evolution and mechanical properties of nugget zone in 2195-T8 Al-Li alloy friction stir welding joints. Materials Characterization, vol. 176, no. 111079, DOI: 10.1016/j.matchar.2021.111079
32. Liu, H.J., Fujii, H., Maeda, M., Nogi, K. (2003). Tensile properties and fracture locations of friction-stir-welded joints of 2017-T351 aluminum alloy. Journal of Materials Processing Technology, vol. 142, no. 3, 692–696, DOI: 10.1016/S0924-0136(03)00806-9
33. Arnould–Laurent, R., Fidelle J.P. (1981). The disk pressure test – a powerful mechanical investigation method. 5th international conference on rupture 1981, p. 1-16.
34. Moreira, P.M.G.P., Santos, T., Tavares, S.M.O., Richter-Trummer V., Vilaça,P., de Castro, P.M.S.T. (2009). Mechanical and metallurgical characterization of friction stir welding joints of AA6061-T6 with AA6082-T6. Materials & Design, vol. 30, no. 1, 180-187, DOI: 10.1016/j.matdes.2008.04.042
35. Khan, N.Z., Siddiquee, A.N., Khan, Z.A., Mukhopadhyay A.K. (2017). Mechanical and microstructural behavior of friction stir welded similar and dissimilar sheets of AA2219 and AA7475 aluminium alloys. Journal of Alloys and Compounds, vol. 695, 2902-2908, DOI: 10.1016/j.jallcom.2016.11.389