Optimization of Cold-Rolling-Stabilization Process for High Mg-Containing Al Alloy
The mechanical properties and corrosion properties of 5E61 alloy cold-rolled sheet were studied under different stabilization annealing processes. The microstructure after alloy stabilization annealing was observed by optical microscopy (OM), scanning electron microscopy (SEM) and transmission electron microscopy (TEM), and the cold-rolled sheet stabilization process window was obtained. The results show that the 5E61 alloy has good corrosion resistance under different stabilization annealing processes; High strength and good corrosion resistance can be achieved in a short time in a higher stabilizing annealing temperature range; while after treatment in the lower stabilized annealing temperature range, the results show that the corrosion resistance is good under long-term annealing conditions and high mechanical properties are obtained, thereby the optimization of the stabilization process was carried out.
KeywordsStabilizing temperature Mechanical properties Corrosion resistance TEM 5E61
The authors are pleased to acknowledge the financial support received from the following projects (in no particular order). The National Key Research and Development Program of China (2016YFB0300804 and 2016YFB0300801), and the National Natural Science Fund for Innovative Research Groups (Grant No. 51621003). The Construction Project for National Engineering Laboratory for Industrial Big-data Application Technology(312000522303). National Natural Science Foundation of China (No. 51671005 and 51701006), Beijing Natural Science Foundation (2162006) and Program on Jiangsu Key Laboratory for Clad Materials (BM2014006).
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