Obrabotka Metallov 2019 Vol. 21 No. 4

OBRABOTKAMETALLOV Vol. 21 No. 4 2019 93 MATERIAL SCIENCE 4. Al-Moussawi M., Smith A.J. Defects in friction stir welding of steel. Metallography , Microstructure, and Analysis , 2018, vol. 7, no. 2, pp. 194–202. DOI: 10.1007/s13632-018-0438-1. 5. AbuShanab W.S., Moustafa E.B. Detection of friction stir welding defects of AA1060 aluminum alloy using specific damping capacity. Materials (Basel, Switzerland), 2018, vol. 11, no. 12, p. 2437. DOI: 10.3390/ma11122437. 6. Wahab M.A., Dewan M.W., Huggett D.J., Okeil A.M., Liao T.W., Nunes A.C. Challenges in the detection of weld-defects in friction-stir-welding (FSW). Advances in Materials and Processing Technologies , 2019, vol. 5, no. 2, pp. 258–278. DOI: 10.1080/2374068X.2019.1575713. 7. Das B., Pal S., Bag S. Defect detection in friction stir welding process using signal information and fractal theory. Procedia Engineering , 2016, vol. 144, pp. 172–178. DOI: 10.1016/j.proeng.2016.05.021. 8. Kumaravel D., Raja V.K.B., Potnuru C., Polina N. Reduction of defects in Al-6061 friction stir welding and verified by radiography. IOP Conference Series: Materials Science and Engineering , 2017, vol. 197, p. 12062. DOI: 10.1088/1757-899x/197/1/012062. 9. Said M.T.S.M., Hamid D.A., Ismail A., Zainal S.N.N., Awang M., Rojan M.A., Ikram I.M., Makhtar M.F. Experimental study on effect of welding parameters of friction stir welding (FSW) on aluminium AA5083 T-joint. Information Technology Journal , 2016, vol. 15, pp. 99–107. DOI: 10.3923/itj.2016.99.107. 10. Khodir S.A., Shibayanagi T. Friction stir welding of dissimilar AA2024 and AA7075 aluminum alloys. Mate- rials Science and Engineering: B , 2008, vol. 148, no. 1, pp. 82–87. DOI: 10.1016/j.mseb.2007.09.024. 11. Kalashnikov K.N., Tarasov S.Yu., Chumaevskii A.V., Fortuna S.V., Eliseev A.A., Ivanov A.N. Towards aging in a multipass friction stir–processed АА2024. International Journal of Advanced Manufacturing Technology , 2019, vol. 103, pp. 2121–2132. DOI: 10.1007/s00170-019-03631-3. 12. Chumaevsky A.V., Eliseev A.A., Filippov A.V., Rubtsov V.E., Tarasov S.Yu. Tensile strength on fric- tion stir processed AMg5 (5083) aluminum alloy. AIP Conference Proceedings , 2016, vol. 1783, pp. 5–9. DOI: 10.1063/1.4966320. 13. Kah P., Rajan R., Martikainen J., Suoranta R. Investigation of weld defects in friction-stir welding and fusion welding of aluminium alloys. International Journal of Mechanical and Materials Engineering , 2015, vol. 10, no. 1, p. 26. DOI: 10.1186/s40712-015-0053-8. 14. Gangwar K., Ramulu M. Friction stir welding of titanium alloys: a review. Materials and Design , 2018, vol. 141, pp. 230–255. DOI: 10.1016/j.matdes.2017.12.033. 15. Liu F.C., Hovanski Y., Miles M.P., Sorensen C.D., Nelson T.W. A review of friction stir welding of steels: tool, material flow, microstructure, and properties. Journal of Materials Science and Technology , 2018, vol. 34, no. 1, pp. 39–57. DOI: 10.1016/j.jmst.2017.10.024. 16. Patel V., Li W., Wang G., Wang F., Vairis A., Niu P. Friction stir welding of dissimilar aluminum alloy com- binations: state-of-the-art. Metals , 2019, vol. 9 (3), pp. 270. DOI: 10.3390/met9030270. 17. Sahlot P., Singh A.K., Badheka V.J., Arora A. Friction stir welding of copper: numerical modeling and vali- dation. Transactions of the Indian Institute of Metals , 2019, vol. 72 (5), pp. 1339–1347. DOI: 10.1007/s12666-019- 01629-9. 18. Hwang Y.M., Fan P.L., Lin C.H. Experimental study on friction stir welding of copper metals. Journal of Materials Processing Technology , 2010, vol. 210 (12), pp. 1667–1672. DOI: 10.1016/j.jmatprotec.2010.05.019. 19. Nagabharam P., Rao D.S., Kumar J.M., Gopikrishna N. Investigation of mechanical properties of friction stir welded pure copper plates. Materials Today: Proceedings , 2018, vol. 5, no. 1, pt. 1, pp. 1264–1270. DOI: 10.1016/j. matpr.2017.11.210. 20. Valeeva A.K., Valeev I.S. On the microhardness and microstructure of copper Cu99,99% at radial-shear roll- ing. Letters on Materials , 2013, vol. 3 (1), pp. 38–40. DOI: 10.22226/2410-3535-2013-1-38-40. Conflicts of Interest The authors declare no conflict of interest.  2019 The Authors. Published by Novosibirsk State Technical University. This is an open access article under the CC BY license (http://creativecommons.org/licenses/by/4.0/ ).