Abstract
Friction stir welding is a solid state joining process, which has been considered the most important development in the welding technology, in the last decade, especially in the joining of light alloys such as aluminium alloys. The increasing applications of these materials in industry give rise to significant development of this process in world scale. The material analysed in this work is the non-heat treatable aluminium alloy AA5083-H111, strain hardened with significant applications, e.g., shipbuilding and automotive industries. Metallurgical features are investigated, such as, the diffusion of initial precipitates and changes of grain size in the heat-affected zone and thermal-mechanically affected zone, resulting from the thermal-mechanical cycle of the friction stir welding process. The results allow to understand the mechanisms that determine the metallurgical changes in the weld bead. The metallographic analysis is compared with hardness tests developed in all zones of the welded joint, enabling conclusions about the mechanical resistance efficiency. The localization and form of corrosion initiation is also evaluated, as well as the influence of the chemical composition of the solid solution matrix of aluminium and secondary phases in the susceptibility to corrosion of parent material and weld bead.
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References
Anderson T.: The advancement of aluminum within the welding fabrication industry and its many product design applications, Alcotec Wire Corporation, USA, 2004.
Facing the future challenges of mobility and competitiveness of Europe, External Advisory Group KA3 Land Transport and Marine Technologies, February 2001.
Svetsaren Esab, The ESAB welding and cutting Journal, Vol. 58 No 1, 2003.
Anderson T.: New developments within the aluminium shipbuilding industry, Alcotec Wire Corporation, Svetsaren no 1, 2003.
Kallee S.W.: Friction stir welding — How to weld aluminium without melting it, TWI, London, May 2001.
Larsson H., Karlsson L., Svenson L.: Friction stir welding of AA 5083 and AA 6082 aluminium, Svetsaren, February 2000.
Kallee S.W., Nicholas E.D., Thomas W.M.: Friction stir welding: invention, innovations and industrialisation, Rührreibschweißen (FSW) — Ein modernes Fügeverfahren (Friction welding — A modern joining process), Berlin-Brandenburg, 20 March 2002.
Vilaça P.: Fundamentos do Processo de Soldadura por Fricção Linear — Análise Experimental e Modelação Analítica, PhD Thesis, Instituto Superior Técnico, Universidade Técnica de Lisboa, Setembro 2003.
Thomas W.M., Nicholas E.D., Smith S.D.: Friction stir welding — Tool developments, Aluminum Joining Symposium, 2001 TMS Annual Meeting, 11–15 February 2001, New Orleans, Louisiana, USA.
Jens Klaestrup Kristensen et al.: Properties of friction stir welded joints in the aluminium alloys 2024, 5083, 6082/6060 and 7075, 5th International Congress TWI, Metz, 14–16 September 2004.
Mercado U.A., Ghidini T., Dalle Donne C., Braun R.: Fatigue and corrosion properties of friction stir welded dissimilar aluminium alloys; Fifth International Friction Stir Welding Symposium, 14–16 September 2004, Metz, France.
Leonard A.J.: Corrosion resistance of friction stirwelds in aluminium alloys 2014A-T651 and 7075-T651, TWI Ltd.
Catarino A., Pépe N., Vilaça P., Quintino L.: Comportamento dos cordões de soldadura por fricção linear na liga de alumínio AA5083 usada na construção naval; Jornadas do Mar, Escola Naval, 2004.
ASTM G67 — Standard test method for determining the susceptibility to intergranular corrosion of 5XXX series aluminium alloys by mass loss after exposure to nitric acid (NAMLT Test), 1999.
ASTM G66 — Standard Test method for visual assessment of exfoliation corrosion susceptibility of 5XXX series aluminium alloys (ASSET Test), 1999.
Polmear I.J.: Light alloys-metallurgy of the light metals, pp. 32, Edward Arnold, 1981.
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Vilaça, P., Pépe, N. & Quintino, L. Metallurgical and Corrosion Features of Friction Stir Welding of AA5083-H111. Weld World 50, 55–64 (2006). https://doi.org/10.1007/BF03263445
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DOI: https://doi.org/10.1007/BF03263445