MATHEMATICAL MODELS OF YIELD STRESS OF CARBON AND ALLOYED STEELS IN THE RANGE OF PRERECRYSTALLIZATION TEMPERATURE OF DEFORMATION
https://doi.org/10.17073/0368-0797-2016-6-385-391
Abstract
It has been shown that due to the heat released in the process of cold plastic deformation the deformable metal is heated up to 250 – 350 °C or more. At these temperatures, related to the recrystallization category, at the result of the return and polygonization the deformable metal yield strength changes by 10 – 35 %. However, due to lack of models for determining the yield stress for the effects of temperature the determined change can be neglected, and it leads to large errors (up to 15 – 45 %) in the prediction of power parameters of cold plastic deformation units. The mathematical models of the yield strength of carbon and alloy steels in the temperature range before recrystallization were determined. The author has shown the evidence of performance and reliability of the proposed models that makes them effective for practical use in performing engineering calculations on units of cold plastic deformation.
About the Author
Ya. D. Vasilev
National Metallurgical Academy of Ukraine, Dnepropetrovsk, Ukraine
Ukraine
Ukraine
Dr. Eng. (Sci.), Professor of the Chair of “Metal Forming”
References
1. Belosevich V.K., Netesov N.P. Sovershenstvovanie protsessa kholodnoi prokatki [Advancement of cold rolling process]. Moscow: Metallurgiya, 1971, 272 p. (In Russ.).
2. Tselikov A.I., Tomlenov A.D., Zyuzin V.I., Tret’yakov A.V., Nikitin G.S. Teoriya prokatki. Spravochnik [Theory of rolling. Reference book]. Moscow: Metallurgiya, 1982, 335 p. (In Russ.).
3. Mazur V.L., Nogovitsin A.V. Teoriya i tekhnologiya tonkolistovoi prokatki (chislennyi analiz i tekhnicheskie prilozheniya) [Theory and technology of thin plate rolling (digital analysis and technical applications)]. Dnepropetrovsk: RVA “Dnіpro VAL”, 2010, 500 p. (In Russ.).
4. Roberts William L. Cold rolling of steel. New York; Basel: Marcel Dekker, Inc., 1978. (Russ.ed.: Roberts W.L. Kholodnaya prokatka stali. Moscow: Metallurgiya, 1982, 544 p.).
5. Vasilev Y.D. Inzhenernye modeli i algoritmy rascheta parametrov kholodnoi prokatki [Engineering models and algorithms for cold rolling parameters calculation]. Moscow: Metallurgiya, 1995, 368 p. (In Russ.).
6. Vasilev Y.D., Dementienko A.V., Gorbunkov S.G. Proizvodstvo zhesti metodom dvoinoi prokatki [Tin production by double rolling]. Moscow: Metallurgiya, 1994, 125 p. (In Russ.).
7. Gulyaev A.P. Metallovedenie: Uchebnik dlya vuzov [Metal science: Textbook for universities]. Moscow: Metallurgiya, 1986, 566 p. (In Russ.).
8. Marochnik stalei i splavov [Steels and alloys: grade guide]. Sorokin V.G. ed. Moscow: Mashinostroenie, 1989, 640 p. (In Russ.).
9. Maslenkov S.B., Maslenkova E.A. Stali i splavy dlya vysokikh temperatur. Spravochnik. V 2-kh kn. Kn. 1 [Steels and alloys for high temperatures. Reference book. In 2 vols. Vol. 1]. Moscow: Metallurgiya, 1991, 283 p. (In Russ.).
10. Vasilev Ya.D., Dementienko A.V. Continuous rolling of thin and extra thin strips. In.: Nepreryvnaya prokatka. Kollektivnaya monografiya [Continuous rolling. Collective monograph]. Dnepropetrovsk: RVA “Dnіpro-VAL”, 2002, pp. 137–293. (In Russ.).
11. Polukhin P.I., Gun G.Ya., Galkin A.M. Soprotivlenie plasticheskoi deformatsii. Spravochnik [Resistance to plastic deformation. Reference book]. Moscow: Metallurgiya, 1983, 352 p. (In Russ.).
12. Pimenov A.F., Soskovets O.N., Traino A.I., Traino V.L., Netesov N.P. Kholodnaya prokatka i otdelka zhesti [Cold rolling and finishing of tin]. Moscow: Metallurgiya, 1990, 208 p. (In Russ.).
13. Vasilev Ya.D. Basics of theory of longitudinal cold rolling. In.: Plasticheskaya deformatsiya metallov [Plastic deformation of metals]. Dnepropetrovsk: Aktsent PP, 2014, pp. 107–125. (In Russ.).
14. Tret’yakov A.V. Teoriya, raschet i issledovanie stanov kholodnoi prokatki [Theory, calculation and study of cold rolling mills]. Moscow: Metallurgiya, 1966, 255 p. (In Russ.).
15. Vasilev Y.D. Engineering method of calculation of strip temperature at cold rolling. Proizvodstvo prokata. 2012, no. 6. pp. 15–19. (In Russ.).
Review
For citations:
Vasilev Ya.D. MATHEMATICAL MODELS OF YIELD STRESS OF CARBON AND ALLOYED STEELS IN THE RANGE OF PRERECRYSTALLIZATION TEMPERATURE OF DEFORMATION. Izvestiya. Ferrous Metallurgy. 2016;59(6):385-391. (In Russ.) https://doi.org/10.17073/0368-0797-2016-6-385-391
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