A conceptual approach to controlling the technological features of thin aluminum sheet production using kinematic asymmetry

Most severe plastic deformation (SPD) methods have little prospect for wide industrial application, unlike asymmetric rolling, which under certain conditions may be accompanied by an SPD effect. This process is suitable for producing long products of the required shape with the desired surface quality. Moreover, asymmetric rolling has proven effective as a means of increasing technological ductility, thereby reducing the number of defects in aluminum rolled products. To confirm this effect, studies were carried out on the asymmetric deformation of D16, AMg6, and AD33 aluminum alloys. Symmetric and asymmetric rolling were performed using a unique scientific installation, namely the laboratory-scale industrial 400 asymmetric rolling mill at the Zhilyaev Laboratory of Mechanics of Gradient Nanomaterials, Nosov Magnitogorsk State Technical University. It is shown that all the alloys studied exhibit an improved combination of mechanical and technological properties when the asymmetry factor is increased from 1 to 5. In particular, the achieved level of technological ductility during asymmetric rolling makes it possible to recommend adjustments to the standard processing route for these alloys by reducing the number of rolling–annealing cycles. In addition, this can reduce material consumption factors and consequently increase productivity. A simultaneous improvement in both strength and ductility was observed when switching from symmetric to asymmetric rolling. The property level can also be controlled by increasing or decreasing the set roll speed ratio. Using D16 alloy as an example, it was shown that strength increases by 13 % at V₁/V₂ = 4 and by 11 % at V₁/V₂ = 5 compared with the standard processing route. Elongation increases markedly: by a factor of 2 relative to the initial state, by a factor of 34 at V₁/V₂ = 4, and by a factor of 41 at V₁/V₂ = 5 compared with the values obtained using the standard route.

1. Nikitin V.I., Nikitin K.V., Timoshkin I.Yu., Biktimirov R.M. Synthesis of aluminum alloys from aluminum-based dispersed waste. Izvestiya. Non-Ferrous Metallurgy. 2020;(5):53—62. (In Russ.). https://doi.org/10.17073/0021-3438-2020-5-53-62

2. Timoshkin I.Yu., Nikitin K.V., Nikitin V.I. Main problems and directions in high quality aluminum castings alloys production made by recycling metal scraps. Liteishchik Rossii. 2010;(8):24—26. (In Russ.).

3. Nannan Shi, Xinyao Peng, Haitao Gao, Zhengyu Wang, Huijie Cui, Chunhua (Charlie) Kong, Hailiang Yu. Investigation on reduced aging time and enhanced tensile properties of Al—Mg—Si sheets by asymmetric cryorolling. JOM: The Journal of the Minerals, Metals & Materials Society. 2025;77:1161—1170. https://doi.org/10.1007/s11837-024-06940-5

4. Utyashev F.Z., Botkin A.V., Volkova E.P., Valiev R.Z. Rational methods of plastic deformation providing formation of ultrafine-grained structure in large-sized products. Reviews on Advanced Materials and Technologies. 2024;6(1):12—23. https://doi.org/10.17586/2687-0568-2024-6-1-12-23

5. Lu C., Yu H.L., Tieu A.K., Li H.J., Godbole A., Zhang S.H. Special rolling techniques for improvement of mechanical properties of ultrafine-grained metal sheets: A review. Advanced Engineering Materials. 2016;18(5):754—769. https://doi.org/10.1002/adem.201500369

6. Kumar Y., Singh H., Tandon P., Basheed G.A., Barik A., Vishwakarma P.N. Enhanced polishing characteristics of Al-6061 via composite magnetic abrasives (EIP—Al2O3) assisted hybrid CMMRF process. Wear. 2024;556— 557:205528. https://doi.org/10.1016/j.wear.2024.205528

7. McPhillimy M., Yakushina E., Blackwell P. Tailoring titanium sheet metal using laser metal deposition to improve room temperature single-point incremental forming. Materials. 2022;15(17):5985. https://doi.org/10.3390/ma15175985

8. Xie Z., Li Z., Tang D., Wang Z., Cui H., Kong C., Yu H. Effects of cryorolling, room temperature rolling, and aging treatment on the mechanical, electrical, and wear properties of a Cu—6Ni—6Sn alloy. Metallurgical and Materials Transactions A. 2024;55:3155—3163. https://doi.org/10.1007/s11661-024-07466-w

9. Zhao S.T., Zhang R.P., Yu Q., Ell J., Ritchie R.O., Minor A.M. Cryoforged nanotwinned titanium with ultrahigh strength and ductility. Science. 2021;373(6561): 1363—1368. https://doi.org/10.1126/science.abe7252

10. Gao C., Wang Y.C., Chen X.W., Li Z., Cai H.N., Langdon T.G. Achieving an excellent combination of strength and plasticity in a low carbon steel through dynamic plastic deformation and subsequent annealing. Materials Science Engineering: A. 2022;842:143051. https://doi.org/10.1016/j.msea.2022.143051

11. Ban Y., Zhou M., Zhang Y., Jia Y., Pang Y., Li Y., Tang S., Li X., Volinsky A.A., Marchenko E.S. Abnormally high work hardening ability and excellent comprehensive properties of copper alloys due to multiple twins and precipitates. Materials & Design. 2023;228:111819. https://doi.org/10.1016/j.matdes.2023.111819

12. Wang Z.J., Ma M., Qiu Z.X., Zhang J.X., Liu W.C. Microstructure, texture and mechanical properties of AA 1060 aluminum alloy processed by cryogenic accumulative roll bonding. Materials Characterization. 2018;139:269—278. https://doi.org/10.1016/j.matchar.2018.03.016

13. Raab G., Utyashev F., Asfandiyarov R., Raab A., Aksenov D., Kodirov I., Janeček M., Krajňák T. Physical and technical foundations of the use of alternating free bending for producing long-length semi-products from metals and alloys with improved mechanical properties. Metals. 2020;10(7):879. https://doi.org/10.3390/met10070879

14. Hajizadeh K., Farhad H., Kurzydlowski K.J. Effect of ECAP processing routes on the microstructural characteristics of commercial purity titanium. Applied Physics A. 2023;129:583. https://doi.org/10.1007/s00339-023-06868-8

15. Wongvaranon K., Rojananan S., Thipprakmas S. Characterization of microstructural evolution and mechanical properties of Cu—Ni—Cr alloys deformed by ECAP. Proceedings of the Institution of Mechanical Engineers. Part E: Journal of Process Mechanical Engineering. 2024. https://doi.org/10.1177/09544089241296616

16. Tolcha M.A., Gebrehiwot M., Lemu G.H. Enhancing mechanical properties of cast ingot Al6061 alloy using ECAP process. Journal of Materials Engineering and Performance. 2024;33:13553—13566. https://doi.org/10.1007/s11665-024-09978-3

17. Sergeev S.N., Safarov I.M., Korznikov A.V., Galeyev R.M., Gladkovsky S.V., Borodin E.M. The influence of multiaxis isothermal forging on structure and properties of low carbon steel 12GBA. Letters on Materials. 2012;2(3): 117—120. (In Russ.). https://doi.org/10.22226/2410-3535-2012-3-117-120

18. Klassman E.Yu., Galieva E.V., Valitov V.A., Lutfullin R.Ya. Multiple isothermal forging of alloys based on nickel and titanium. Fundamental’nye problemy sovremennogo materialovedenia (Basic Problems of Material Science (BPMS)). 2022;19(4):532—538. (In Russ.). https://doi.org/10.25712/ASTU.1811-1416.2022.04.012

19. Al-Zubaydi A.S., Gao N., Džugan J., Podaný P., Chen Y., Reed P.A. Fracture behaviour assessment of the additively manufactured and HPT-processed Al—Si—Cu alloy. Materials Science and Technology. 2024;41(8):592—613. https://doi.org/10.1177/02670836241262477

20. Lee D.H., Choi I.C., Seok M.Y., He J., Lu Z., Suh J.Y., Kawasaki M., Langdon T.G. Nanomechanical behavior and structural stability of a nanocrystalline CoCrFeNiMn high-entropy alloy processed by high-pressure torsion. Journal of Materials Research. 2015;30:2804—2815. https://doi.org/10.1557/jmr.2015.239

21. Son K.T., Cho C.H., Kim M.G., Lee J.W. Two-stage dynamic recrystallization and texture evolution in Al—7Mg alloy during hot torsion. International Journal of Minerals, Metallurgy and Materials. 2024;31: 1900—1911. https://doi.org/10.1007/s12613-024-2877-9

22. Amegadzie M.Y., Bishop D.P. Effect of asymmetric rolling on the microstructure and mechanical properties of wrought 6061 aluminum. Materials Today. 2020;25:101283. https://doi.org/10.1016/j.mtcomm.2020.101283

23. Zhao Q., Hu X., Liu X. Analysis of mechanical parameters in multi-pass asymmetrical rolling of strip by slab method. Materials. 2023;16(18):6286. https://doi.org/10.3390/ma16186286

24. Kozhevnikov A.V., Smirnov A.S., Platonov Yu.V., Kozhevnikova I.A., Zhilenko S.V. Simulation modeling of asymmetric sheet rolling stability. Ferrous Metallurgy: Bulletin of Scientific, Technical and Economic Information. 2022;78(10):865—871. (In Russ.). https://doi.org/10.32339/0135-5910-2022-10-865-871

25. Pesin A.M., Pustovoitov D.O., Sverchkov A.I., Kornilov G.P. Experimental testing of the technology of asymmetric cold rolling of a strip of high-carbon steel grades to exclude intermediate annealing operations. Chernye Metally. 2022;1091(11):28—35. (In Russ.). https://doi.org/10.17580/chm.2022.11.03

26. Pesin A., Raab G., Sverchkov A., Pustovoytov D., Kornilov G., Bochkarev A., Pesin I., Nosov L. Development of asymmetric cold rolling technology of highstrength steel grades in order to exclude intermediate annealing operations. Materials Research Proceedings. 2023;32:355—361. https://doi.org/10.21741/9781644902615-40

27. Degtyarev A.V., Maltseva T.V., Glinskikh P.I., Yakovlev S.I. Technological features of production of clad sheets from hard aluminum alloys at Kamensk Uralsky Metallurgical Works (KUMZ). Tekhnologiya Legkikh Splavov. 2024;(2):40—46. (In Russ.). https://doi.org/10.24412/0321-4664-2024-2-40-46

28. Kozhemyakina A., Pesin A., Pustovoytov D., Nosov L., Baryshnikova A., Lokotunina N., Grachev D. Experimental study of the effect of increasing technological plasticity during asymmetric rolling of aluminum alloys. Materials Research Proceedings. 2023;32:309—316. https://doi.org/10.21741/9781644902615-36

29. Pesin A.M., Pustovoitov D.O., Pesin I.A., Kozhemiakina A.E., Nosov L.V., Sverchkov A.I. Developing asymmetric rolling process schedules for metal narrow strips, showing higher strength and ductility. Theory and Technology of Metallurgical Production. 2022;41(2):32—40. (In Russ.).

30. Biryukova O.D., Pesin A.M., Pustovoitov D.O. Experience in obtaining laminated aluminum composites by asymmetric accumulative roll bonding. Letters on Materials. 2022;12(4):373—378. https://doi.org/10.22226/2410-3535-2022-4-373-378