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CHU Ya-jie, LI Xiao-quan, WU Shen-qing, CHENG Hai-xia. Effect of Hot-Press on Tensile Properties of Welded Joints of Magnesium Alloy[J]. Materials and Mechanical Engineering, 2012, 36(2): 24-27.
Citation: CHU Ya-jie, LI Xiao-quan, WU Shen-qing, CHENG Hai-xia. Effect of Hot-Press on Tensile Properties of Welded Joints of Magnesium Alloy[J]. Materials and Mechanical Engineering, 2012, 36(2): 24-27.
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Effect of Hot-Press on Tensile Properties of Welded Joints of Magnesium Alloy

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  • Received Date: December 09, 2011
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  • The effects of hot-press on tensile properties and fracture morphology of AZ31B magnesium alloy welded joint welded by argon tungsten-arc welding were studied by tensile test, optical microscopy and scanning electron microscopy. The results show that the tensile strength and elongation of welded joint after hot-press were 200 MPa and 10%, respectively, and increased by 18% and 67% comparing with that of welded joint before hot-press. The tensile fracture of welded joint was mainly cleavage and more footmark platforms, accompanied by small amount of dimples. The fracture of hot-pressed joint showed the characteristics of quasi-cleavage fracture with plastic deformation flow lines, and the grains boundaries showed the phenomenon of sliding coordination.
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    • References (13)
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