【摘 要】
：
In this study,3-mm-thick hot-extruded plates of Al-12.7Si-0.7Mg alloy were used to fabricate the joints welded by gas metal arc welding.Effects of the post-weld
【机 构】
：
Key Laboratory of Anisotropy and Texture of Materials of Ministry of Education,Northeastern Universi
【出 处】
：
Acta Metallurgica Sinica(English Letters)
论文部分内容阅读
In this study,3-mm-thick hot-extruded plates of Al-12.7Si-0.7Mg alloy were used to fabricate the joints welded by gas metal arc welding.Effects of the post-weld heat treatment include solid solution treatment,water quenching,and artificial aging treatment on the microstructure,and mechanical properties of the weld joints have been investigated.Results showed that the welded joints after solid solution and artificial aging exhibited the increases in yield strength of166 MPa and ultimate tensile strength of 148 MPa,respectively.Based on the microstructural observations,the associated mechanisms were discussed.
In this study, 3-mm-thick hot-extruded plates of Al-12.7Si-0.7Mg alloy were used to fabricate the joints welded by gas metal arc welding. Effects of the post-weld heat treatment include solid solution treatment, water quenching , and artificial aging treatment on the microstructure, and mechanical properties of the weld joints have been investigated. Results showed that the welded joints after solid solution and artificial aging drawings the increases in yield strength of 166 MPa and ultimate tensile strength of 148 MPa, respectively. Based on the microstructural observations, the associated mechanisms were discussed.
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