Effect of the gap width in AZ31 magnesium alloy joints obtained by friction stir welding
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In: Journal of Materials Research and Technology, Vol. 15, 01.11.2021, p. 5297-5306.
Research output: Journal contributions › Journal articles › Research › peer-review
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TY - JOUR
T1 - Effect of the gap width in AZ31 magnesium alloy joints obtained by friction stir welding
AU - Chiuzuli, Fernanda Rocha
AU - Batistão, Bruna Fernanda
AU - Bergmann, Luciano Andrei
AU - Alcântara, Nelson Guedes de
AU - dos Santos, Jorge Fernandez
AU - Klusemann, Benjamin
AU - Gargarella, Piter
N1 - This study was financed in part by the support of the Coordenação de Aperfeiçoamento de Pessoal de Nível Superior – Brasil (CAPES) – Finance Code 001. The authors also thank the grant #2019/04613–3, São Paulo Research Foundation ( FAPESP ).
PY - 2021/11/1
Y1 - 2021/11/1
N2 - Thin AZ31 magnesium alloy sheets, i.e., 2 mm thick, are welded by Friction Stir Welding (FSW) in butt joint configuration using gap width up to 1.15 mm. All welds present good surface finishing and no internal defects, except for the weld produced using the maximum gap width. A reduction of the weld thickness within the Stir Zone is seen with the increase in gap width, leading to a maximum thickness reduction of 8.5%. Microstructure and Vickers hardness investigations reveal no influence of the gap width on these properties. Up to a gap width of 0.51 mm, a slight decrease in the Ultimate Tensile Strength (UTS) is observed with increasing gap width. For larger gap widths, the UTS, as well as the fracture strain, are constant. To keep the metallurgical integrity, a maximum gap width of 1 mm seems acceptable for joints of thin AZ31 magnesium alloy sheets produced by FSW.
AB - Thin AZ31 magnesium alloy sheets, i.e., 2 mm thick, are welded by Friction Stir Welding (FSW) in butt joint configuration using gap width up to 1.15 mm. All welds present good surface finishing and no internal defects, except for the weld produced using the maximum gap width. A reduction of the weld thickness within the Stir Zone is seen with the increase in gap width, leading to a maximum thickness reduction of 8.5%. Microstructure and Vickers hardness investigations reveal no influence of the gap width on these properties. Up to a gap width of 0.51 mm, a slight decrease in the Ultimate Tensile Strength (UTS) is observed with increasing gap width. For larger gap widths, the UTS, as well as the fracture strain, are constant. To keep the metallurgical integrity, a maximum gap width of 1 mm seems acceptable for joints of thin AZ31 magnesium alloy sheets produced by FSW.
KW - AZ31
KW - Butt joint configuration
KW - Friction stir welding
KW - Gap width
KW - Lightweight material
KW - Mg alloy
KW - Engineering
UR - http://www.scopus.com/inward/record.url?scp=85119073669&partnerID=8YFLogxK
U2 - 10.1016/j.jmrt.2021.10.115
DO - 10.1016/j.jmrt.2021.10.115
M3 - Journal articles
AN - SCOPUS:85119073669
VL - 15
SP - 5297
EP - 5306
JO - Journal of Materials Research and Technology
JF - Journal of Materials Research and Technology
SN - 2238-7854
ER -