Specific Features of Crystalline Texture Formation During Magnesium Rich Aluminum Alloys As-Cast Structure Workover
Abstract
The purpose of this studyinvestigation of texture evolution during magnesium rich aluminum alloys as-cast structure workover in reversing mill.
Methodology. As part of the studytwo cast workpieces from magnesium rich aluminum alloys 5182 and 1565 ch were rolled in a commercial reversing mill for as-cast structure workover. Аs-cast structure formation was modeled at different Zener parameters. Samples microstructure was analyzed using Carl Zeiss Axiovert - 40 MAT optical microscope. Texture was investigated by reflection method, using X-ray diffraction meter DRON-7 in Cokα-radiation. Results. The study identified similarities and differences specific to both alloys. The major common feature of both alloys is second-phase particles based mechanism of recrystallized grains nucleation. However, significant difference consists in second phase particles-based nucleation being specific to 1565ch.Under some thermomechanical treatment modes second-phase particles based nucleation will be prevailing mechanism in 1565ch. Besides, 5182 fully recrystallizes after as-cast structure workover completion, while in 1565 ch only small metal volume recrystallizes.
Conclusion. Such factor calls for two different approaches to texture formation management for each studied alloys. In case of 5182 alloy as-cast structure shall be worked over with low Zener-Hollomon parameters with attempt to achieve max sharp cube texture. Vice versa, 1565 ch as-cast structure workover shall be performed with high ZenerHollomon parameters to eliminate pronounced texture components after recrystallization.
Supporting agencies: This work was supported by the Russian science Foundation. Project number 18-79-10099-П, https://rscf.ru/project/21-79-03041.
About the Authors
E. V. Aryshenskii
Samara National Research University
Russian Federation
Russian Federation
Evgenii V. Aryshenskii, Cand. of Sci. (Engineering), Associate Professor of the Department Process Metallurgy and Aviation Material Science Department Assistant Professor
34 Mosskovskoe shosse, Samara 443086
Researcher ID: AAQ-6059-2021
S. V. Konovalov
Samara National Research University
Russian Federation
Russian Federation
Sergey V. Konovalov, Dr. of Sci. (Engineering), Head of the Process Department Metallurgy and Aviation Material Science Department Professor
34 Mosskovskoe shosse, Samara 443086
Researcher ID: G-3789-2013
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Review
For citations:
Aryshenskii E.V., Konovalov S.V. Specific Features of Crystalline Texture Formation During Magnesium Rich Aluminum Alloys As-Cast Structure Workover. Proceedings of the Southwest State University. Series: Engineering and Technology. 2021;11(3):28-45. (In Russ.)
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