Please use this identifier to cite or link to this item: http://hdl.handle.net/11452/31228
Title: Effect of welding parameters on microstructure and mechanical properties of aluminum alloy AA6082-T6 friction stir spot welds
Authors: Uludağ Üniversitesi/Mühendislik Mimarlık Fakültesi/Makine Mühendisliği Bölümü.
0000-0002-7286-3433
Aydın, Hakan
Tuncel, Oğuz
Umur, Yeliz
Tutar, Mumin
Bayram, Ali
J-2753-2016
GXG-5601-2022
AAK-4598-2021
16312009400
56400829400
57191961457
54406234300
7004197848
Keywords: Engineering
Materials science
AA6082 aluminum alloy
Friction stir spot welding
Microhardness
Microstructure
Tensile shear load
Welding parameters
Fatigue behavior
Joints
Al
Speed
Steel
Sheets
Aluminum
Ductile fracture
Fracture mechanics
Friction
Friction stir welding
Hardness
Heat affected zone
Microhardness
Microstructure
Speed
Spot welding
Stainless steel
Tensile testing
Tribology
Welding
Welding
Welds
Friction stir spot weld
Friction stir spot welding
Lightweight materials
Micro-structural observations
Microstructure and mechanical properties
Tensile shear load
Weld microstructures
Welding parameters
Aluminum alloys
Issue Date: Jun-2017
Publisher: Natl Inst Science Communication-Niscair
Citation: Aydın, H. vd. (2017). ''Effect of welding parameters on microstructure and mechanical properties of aluminum alloy AA6082-T6 friction stir spot welds''. Indian Journal of Engineering and Materials Sciences, 24(3), 215-227.
Abstract: Friction stir spot welding is an alternative joining technique for lightweight materials such as aluminum alloys. In this study, the influence of welding parameters, namely rotational speed, plunge depth, dwell time and travel speed, on weld microstructure and weld strength of friction stir spot welded AA6082-T6 aluminum alloy have been investigated. The joined samples were investigated by the methods of microstructural observations, microhardness tests, tensile shear tests and fractography. The hardness values of weld zone decreased significantly after FSSW process. Among the weld zones, HAZ showed the lowest hardness values. Higher rotational speed and lower travel speed led to the lower hardness values in the weld zone. The plunge depth and dwell time did not significantly affect the hardness values in the weld zone, except the SZ near TMAZ. Larger plunge depth and higher dwell time promoted higher hardness values in the SZ near TMAZ. The tensile test results showed that tensile shear load increased with increasing plunge depth and dwell time and with decreasing tool rotational speed and travel speed. The most effective welding parameter was found as dwell time. Higher rotational speed, higher plunge depth, higher dwell time and lower travel speed resulted in relatively ductile fracture.
URI: 0975-1017
http://hdl.handle.net/11452/31228
ISSN: 0971-4588
Appears in Collections:Scopus
Web of Science

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