Home HOME Kovove Materialy-Metallic Materials 2017 Metallic Materials Vol. 55 (2017), no. 3, pp.191-194

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Metallic Materials Vol. 55 (2017), no. 3, pp.191-194

Title: Mechanical properties of friction stir welded 2024 aluminum alloy and precipitated phases in stir zone
Author: Y. B. ZHANG, C. Y. DU, J. N. LI
Abstract: 2024 aluminum alloy sheets in T4 temper were welded successfully by friction stir welding (FSW) technique. When the welding travel speed was 300 mm min–1, tensile strength reached a maximum value (294 MPa). The precipitated phase is mainly metastable U (AlCuMg) of reinforced phases in thermo-mechanically affected zone (TMAZ). Lots of the AlCu3 black particles precipitated on the grain boundary of TMAZ. However, a large number of Cu2Mg black granular precipitates were observed in the WN region.
Keywords: friction stir welding, welding, metals and alloys
Published online: 06-Jun-2017
Year: 2017, Volume: 55, Issue: 3 Page From: 191, Page To: 194
doi:10.4149/km_2017_3_191


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