A process for fabricating 5-mm-thick sheets from alloy 1565ch with recrystallized grains less than 10 μm in size is developed, which involves superplastic forming and provides elevated mechanical properties at room temperature. The parameters of superplasticity and the mechanical properties of alloy 1565ch are determined. Test forming of a dome-shape model part is performed.
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The work has been performed with financial support of the Ministry of Education and Science of the Russian Federation within the program for raising the competitiveness of NITU “MISiS” among the leading world scientific and educational centers in 2013 – 2020 and state assignments for higher educational institutions in 2014 – 2016 and within the Program for Fundamental Research of the National Research University “Higher School of Economics.”
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Translated from Metallovedenie i Termicheskaya Obrabotka Metallov, No. 9, pp. 30 – 35, September, 2016.
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Kishchik, M.S., Mikhailovskaya, A.V., Levchenko, V.S. et al. Formation of Fine-Grained Structure and Superplasticity in Commercial Aluminum Alloy 1565ch. Met Sci Heat Treat 58, 543–547 (2017). https://doi.org/10.1007/s11041-017-0051-y
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DOI: https://doi.org/10.1007/s11041-017-0051-y