مقاله جوشکاری با عنوان :Metallurgy and mechanical performance of AZ31 magnesium alloy friction spot weldsLeonardo Contri Campanellia,∗, Uceu Fuad Hasan Suhuddinb, Armando Ítalo Sette Antoniallia,Jorge Fernandez dos Santosb, Nelson Guedes de Alcântaraa, Claudemiro Bolfarini چکیده مقاله:Microstructural features were studied along the cross-section of AZ31 magnesium alloy friction spotwelded joints made using different combinations of welding parameters. Static lap shear testing was performedto evaluate the mechanical properties of the welded joints, and the resulting fracture mechanismsand crack propagation paths were fully examined. Failure load is optimized when the welding procedureis performed with the combination of parameters that maximizes the material mixing, the size of fullymetallurgical bonding and simultaneously minimizes the vertical displacement of hook region. The weldsdemonstrate three failure modes during lap shear testing: through the weld and non-circumferentialpull-out modes, in which crack propagation crosses the recrystallized zone, and circumferential pull-outmode, around this zone.
مقاله جوشکاری با عنوان :Metallurgy and mechanical performance of AZ31 magnesium alloy friction spot weldsLeonardo Contri Campanellia,∗, Uceu Fuad Hasan Suhuddinb, Armando Ítalo Sette Antoniallia,Jorge Fernandez dos Santosb, Nelson Guedes de Alcântaraa, Claudemiro Bolfarini چکیده مقاله:Microstructural features were studied along the cross-section of AZ31 magnesium alloy friction spotwelded joints made using different combinations of welding parameters. Static lap shear testing was performedto evaluate the mechanical properties of the welded joints, and the resulting fracture mechanismsand crack propagation paths were fully examined. Failure load is optimized when the welding procedureis performed with the combination of parameters that maximizes the material mixing, the size of fullymetallurgical bonding and simultaneously minimizes the vertical displacement of hook region. The weldsdemonstrate three failure modes during lap shear testing: through the weld and non-circumferentialpull-out modes, in which crack propagation crosses the recrystallized zone, and circumferential pull-outmode, around this zone.