Scientific paper ID 2162 : 2021/3

Ivan Kolarov1, Plamen Tashev2

Ultrasonic examination of inaccuracies in layers in samples of aluminum alloys (plate with a thickness of 4 mm from alloy A5083 and plate with a thickness of 12 mm from alloy A6061) treated by friction stir is presented in this paper. A dual sensor with working frequency 5 MHz and an ultrasonic flaw detector has been used for testing. Defects in the layers registered in the process of control of the samples have been illustrated.

Reflected echoes with amplitude different from the amplitude of the main signal are searched for. Significant reflections from imperfections in the studied layers were registered. Additional research shows that they are due to imperfections along the layer. No reflection from the plastically deformed surface was registered.

The obtained results will find application in the evaluation of the processing modes by rubbing and mixing of samples of similar materials in order to select optimal ones and avoid incompleteness.

нецялостности обработка чрез триене и размесване ултразвуково изследване алуминиеви сплавиincompleteness friction stir welds ultrasonic testing aluminum alloysIvan Kolarov Plamen Tashev


[1] Bharat Raj Singh. A Hand Book on Friction Stir Welding. Researchgate. 2012.

[2] Hitachi review. Railway systems. Volume 63 Number 10 March 2015

[3] Kah P., and all. Investigation of weld defects in friction-stir welding and fusion welding of aluminium alloys. International Journal of Mechanical and Materials Engineering (2015) 10:26.

[4] KONDOFF C., V. DYKOVA, R. DIMITROVA, Y. HADJITODOROV, R. ZAEKOVAA. Layer Formation on 6061 Aluminum Alloy after FSP. International Journal “NDT Days”. Volume IV. ISSN: 2603-4018 eISSN: 2603-4646.

[5] Mihovski M. Kompleksno izpolzvane na bezrazrushitelnite metodi za izsledvane na strukturata i fizikomehanichnite svoystva na metalni materiali. Disertatsiya za prisazhdane na nauchnata stepen „doktor na tehnicheskite nauki”, Institut po mehanika i biomehanika – BAN, Sofiya, 1991.
( [5] Миховски М. Комплексно използване на безразрушителните методи за изследване на структурата и физикомеханичните свойства на метални материали. Дисертация за присъждане на научната степен „доктор на техническите науки”, Институт по механика и биомеханика – БАН, София, 1991. )




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