Название |
The research of the cold rolling modes for plates of aluminum alloy sparingly doped with scandium |
Информация об авторе |
Siberian Federal University, Krasnoyarsk, Russia:
V. N. Baranov, Assistant Professor, Director of the School of Non-Ferrous Metals & Materials Science1, e-mail: vnbar79@mail.ru I. L. Konstantinov, Assistant Professor, Department of Metal Forming, e-mail: ilcon@mail.ru S. B. Sidelnikov, Professor, Head of the Department of Metal Forming
RUSAL Bratsk Aluminium Smelter JSC, Bratsk, Russia:
E. Yu. Zenkin, Managing Director, e-mail: EvgeniyZenkin@rusal.com |
Реферат |
The study of the cold rolling modes of the plates of aluminum alloy sparingly doped with scandium was performed. As a blank for rolling, a 60 mm thick semifinished rolled stock, obtained at one of the Russian metallurgical enterprises by hot rolling of a 1580 alloy ingot was used. At the first stage of the work, an experimental studies of cold rolling of the plates with different degrees of deformation in the laboratory conditions on a rolling mill DUO 330 with a body of roll of 520 mm long has been implemented to determine the critical value of overall reduction, causing the destruction of samples, which have showed that this value during cold rolling of the hotrolled semifinished material corresponds to 21–22%. At this degree of deformation, the alloy has high strength properties with a sufficiently high plasticity. Further increase in the deformation degree does not lead to a significant growth of strength properties, but can favor to the formation of cracks along the edge of the rolled stock. The hot-rolled semifinished material deformability has been tested in the range of the cold deformation degrees from 10 to 30% using the reduction modes obtained in laboratory conditions at the second stage of the work in order to test the technology of rolling the plates on an industrial mill with a body of roll of 2800 mm long and a billet width of 2000 mm. By the results of mechanical properties testing of the plates rolled with different deformation degrees, it is shown that cold rolling of a hot-rolled billet with deformation degree of 21–22% provides the following mechanical properties of the plates: t = 420 MPa; σ0.2 = 380 MPa; δ = 8%, and further increase of the cold deformation degree leads to an insignificant growth of strength properties (about 10 MPa).
This work was carried out under the project 03.G25. 31. 0265 “Development of sparingly alloyed high-strength Al-Sc alloys for use in motor transport and navifation” within the framework of the Program of implementation of complex projects on creation of high-tech production, approved by the Decree No. 218 of the Government of the Russian Federation of April 9, 2010.
The article is published as a platform for discussion. |
Библиографический список |
1. Gorbunov Yu. A. The use of aluminum alloy products for production and repair of surface and water transport vehicles in Russian Federation. Tekhnologiya Legkikh Splavov. 2015. No. 1. pp. 87–92. 2. Filatov Yu. A. Al – Mg – Sc systems for welded and brazed constructions. Tsvetnye Metally. 20 14. No. 1. pp. 80–86. 3. Bronz A. V., Efremov V. I., Plotnikov A. D., Chernyavskiy A. G. Alloy 1570C – material for hermetic structures of the perspective reusable products of RSC Energia. Kosmicheskaya Tekhnika i Tekhnologii. 2014. No. 4 (7). pp. 62–67. 4. Filatov Yu. A., Plotnikov A. D. Structure and properties of deformed semifinished products from aluminum alloy 01570C of the Al – Mg – Sc system for the RSC Energia product. Tekhnologiya Legkikh Splavov. 2011. No. 2. pp. 15–26. 5. Belov N. A. Phase composition of industrial and perspective aluminum alloys. Moscow : Izdatelskiy Dom MISiS, 2010. 511 p. 6. Shi C., Zhang L., Wu G., Zhang X., Chen A., Tao J. Effects of Sc Addition on the Microstructure and Mechanical Properties of Cast Al – 3Li – 1.5Cu – 0.15Zr Alloy. Materials Science and Engineering: A. 2017. Vol. 680. pp. 232–238. 7. Pereira P. H.e R., Wang Y. C., Huang Y., Langdon T. G. Influence of Grain Size on the Flow Properties of an Al – Mg – Sc Alloy over Seven Orders of Magnitude of Strain Rate. Materials Science and Engineering: A. 2017. Vol. 685. pp. 367–376. 8. Mondol S., Alamb T., Banerjee R., Kumar S., Chattopadhyay K. Development of a High Temperature High Strength Al Alloy by Addition of Small Amounts of Sc and Mg to 2219 Alloy. Materials Science and Engineering: A. 2017. Vol. 687. pp. 221–231. 9. Malopheyev S., Kulitskiy V., Kaibyshev R. Deformation Structures and Strengthening Mechanisms in an Al – Mg – Sc – Zr Alloy. Journal of Alloys and Compounds. 2017. Vol. 698. pp. 957–966. 10. Li M., Pan Q., Shi Yu., Sun X., Xiang H. High Strain Rate Superplasticity in an Al – Mg – Sc – Zr Alloy Processed via Simple Rolling. Materials Science & Engineering: A. 2017. Vol. 687. pp. 298–305. 11. Buranova Yu., Kulitskiy V., Peterlechner M., Mogucheva A., Kaibyshev R., Divinski S. V., Wilde G. Al3(Sc,Zr)-based Precipitates in Al – Mg Alloy: Effect of Severe Deformation. Acta Materialia. 2017. Vol. 124. pp. 210–224. 12. Zhemchuzhnikova D., Kaibyshev R. Effect of Grain Size on Cryogenic Mechanical Properties of an Al – Mg – Sc Alloy. Advanced Materials Research. 2014. Vol. 922. pp. 862–867. 13. Marquis E. A., Seidman D. N. Nanoscale Structural Evolution of Al3Sc Precipitates in Al(Sc) Alloys. Acta Materialia. 2001. Vol. 49, Iss. 11. pp. 1909–1919. 14. Fuller C. B., Seidman D. N. Temporal evolution of the nanostructure of Al(Sc,Zr) alloys: Part II: coarsening of Al(ScZr) precipitates. Acta Materialia. 2005. Vol. 53, Iss. 20. P. 5415–5428. 15. Ryset J., Ryum N. Scandium in Aluminum Alloys. International Materials Reviews. 2005. Vol. 50, Iss. 1. P. 19–44. 16. Elagin V. I., Zakharov V. V., Rostova T. D. Recrystallization of aluminum alloys with scandium, in Problems of the metallurgy of light and special-property alloys. Мoscow : VILS, 1991. pp. 114–129. 17. Yashin V. V., Aryshenskiy V. Yu., Latushkin I. A., Tepterev M. S. Substantiation of a Manufacturing Technology of Flat Rolled Products From Al – Mg – Sc Based Alloys for the Aerospce Industry. Tsvetnye Metally. 2018. №7. pp. 75–82. DOI: 10.17580/tsm.2018.07.12. 18. Dovzhenko I. N., Dovzhenko N. N. , Sidelnikov S. B., Konstantinov I. L. 3D Modelling of the Large-Capacity Ingots of an Al – Mg System Aluminium Alloy Doped with Scandium Rolling Process. Non-ferrous Metalls. 2017. No. 2. pp. 60–64. DOI: 10.17580/nfm.2017.02.11. 19. Baranov V. N., Sidelnikov S. B., Frolov V. F., Zenkin E. Yu., Оrelkina T. A., Konstantinov I. L., Voroshilov D. S., Yakivyuk O. V., Belokonova I. N. Investigation of Mechanical Properties of Cold-Rolled, Annealed and Welded Semi-Finished Products From the Test Alloys of Al – Mg System, Economically Alloyed with Scandium. IOP Conference Series: Materials Science and Engineering. 2018. Vol. 411. 012015. DOI: 10.1088/1757-899X/411/1/012015. 20. Baranov V., Sidelnikov S., Zenkin E., Frolov V., Voroshilov D., Yakivyuk O., Konstantinov I., Sokolov R., Belokonova I. Study of Strength Properties of Semi-Finished Products from Economically Alloyed High-Strength Aluminium-Scandium Alloys for Application in Automobile Transport and Shipbuilding. Open Engineering. 2018. Vol. 8, Iss. 1. pp. 69–76. 21. Baranov V., Sidelnikov S., Zenkin E., Yakivyuk O. Physical Modeling Technological Regimes of Production Deformed Semi-Finished Products from Experimental Aluminium Alloys Alloyed by Scandium. Materials Science Forum. 2018. Vol. 918. pp. 54–62. 22. Mann V. Kh., Sidelnikov S. B., Konstantinov I. L., Baranov V. N., Dovzhenko I. N., Voroshilov D. S., Lopatina E. S., Yakivyuk O. V., Belokonova I. N. Modeling and Investigation of the Process of Hot Rolling of Large-Sized Ingots From Aluminum Alloy of the Al – Mg System, Economically Alloyed by Scandium. Materials Science Forum. 2019. Vol. 943. pp. 58–65. 23. Tselikov A. I., Nikitin G. S., Rokotyan S. E. Theory of Longitudinal Rolling : a tutorial. Мoscow : Metallurgiya, 1980. 320 p. |