.6013 Aluminum Alloy And Organizations

6013 aluminum alloys containing different main alloying elements minor alloying elements were designed and prepared by ingot-metallurgy processing . The tesile mechanical and aging properties of the studied alloys were tested ; the microstructure of those alloys were observed and analyzed using optical microscope ; the influence of main alloying element Mg,Si , minor alloying elements Mn, Cu and homogenization process on the structure and property of studied alloys were studied . Mechanical properties , corrosion resistance and electric properties of 6013 alloy extruded shapes were studied . The results showed that :(1) the shaping abilities of hot rolling and hot extruding of 6013alloy are excellent .(2) when the additions of alloying elements : Mg, Si, Cu and Mn in 6013 alloys are 1. 97wt%, 0. 96wt%, 0.50wt%, and 0.36wt%,respectively , the yield strength 0.2, ultimate strength and ductility of alloys were better . After solid solution treatment , the rigidities of hot rolling plates of 6013 alloys reach peak value when aging temperature and time are 180 C and 4 hours , respectively .(3) solid solution with good solid solution ability were acquired by solid soluting treatment for 25 min at 540 C, 560 C and 580 C, respectively , after that water quenching was carried on . In the case of 580 C, thecoarseness of the precipitation at grain boundaries did not happen , equi-part 120 did not emerge at the intersection of three grains , these suggest that over sintering did not happen . Strengthening phase Mg2Si is precipitated in the structure of alloy .(4) In extruded shapes of 6013 alloys , the strength of alloy in with more Cu content is higher than that of alloy 2 with lower Cu content , because Cu content was increased , the number of the transitted phase increased .(5) In extruded shapes of 6013 alloys , corrosion resistance of alloy 2 is better than that of alloy 1ft . The corrosion resistance of both alloys are inferior to that of 6063 alloy , this is significantly related to the Cu content of alloys .(6) Resistivity of 6013 alloy is higher that of 6063 alloy , but conductivity is lower than that of 6063 alloy , this is due to the Cu content of 6013 alloy is higher than that of 6063 alloy . The conductivity decreased with Cu content of 6013 alloy increasing .(7) Dimension and external quality of the 6013 rolled tube : 130+0.5+7-0.5, the internal and external surface are smooth , on which there are no peeling, air bubble, delamination, dregs, cracks, extra lards, corrosion stains; the strength 6b, ultimate strength 60.2, ductility of 6013 rolled tubes was 317MPa, 292MPa, 14%, respectively.