Using high-speed train A6N01S-T5 aluminum alloy welded joints mechanical properties and microstructure analysis.pdf
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Research by the China-made high-speed train A6N01S-T5 aluminum alloy melting polar GMAW (MIG) welding joint of the mechanical properties and the use of optical microscopy study of the microstructure of welded joints. The results show that: the hardness of welded joints in order to weld center line as the axis of symmetry was similar to symmetrical distribution of welded joints of the weakest link is located about 10mm from the center seam,Welded joints of heat-affected zone in the region there is a softening. Center Welds for the typical dendritic cast; fusion line near the side of the heat along the grain direction was crystal column. Organization of materials for the typical recrystallization, and then squeeze the direction of crystal grains along the stretch, the Heat are still visible after the processing of the flow of fiber. Domestic A6N01S-T5 aluminum alloy wire ER5356 wearing the strength of welded joints to reach European standards.
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All languages:English Chinese (Simplified) Chinese (Traditional)
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