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The analysis of the microstructure of steel S460NL1 in the conditions of thermo-mechanical treatment

Wybrane pełne teksty z tego czasopisma
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Warianty tytułu
Języki publikacji
EN
Abstrakty
EN
Purpose: The application of new technologies requires, however, modern rolling mills. Indeed, in manufacturing plants of older types, strict compliance with the developed rolling regimes is not always feasible. Improving the mechanical properties in such cases in only possible by means of cooling. Design/methodology/approach: The tests carried out in this work was performed using the dilatometer DIL 805 A/D with the internal adapter for the plastic deformation of specimen. Findings: Diagrams of austenite decomposition during continuous cooling of steel have been developed, which are essential for the modernization of the technology of cooling plates of steel S460NL1. Dilatometric tests have been complemented with the results of metallographic examinations. Practical implications: The results of the researches carried out have allowed to project new technology of thermo-mechanical treatment for this steel grade. These results was used for the physical simulation of normalizing rolling process. Originality/value: By controlling cooling conditions, structures differing in mechanical properties can be obtained for the same material. Accurate understanding of a structure forming when different cooling conditions are applied enables the control of the process that assures intended structures and mechanical properties to be achieved.
Rocznik
Strony
61--64
Opis fizyczny
Bibliogr. 15 poz., fot., rys., tab.
Twórcy
autor
autor
autor
  • Institute for the Modelling and Automation of Plastic Working Processes, Faculty of Process & Material Engineering and Applied Physics, Czestochowa University of Technology, Al. Armii Krajowej 19, 42-200 Czestochowa, Poland, jarekm@mim.pcz.czest.pl
Bibliografia
  • [1] S.P. Jefimenko, M.L. Bernshtein, Puti intensifikatsi technologyi uprotchnena prokata, Stal 4 (1986) 69-75.
  • [2] A.A. Baranov, A.A. Minaev, Problemy sovmeshtchena deformatsi y termitcheskoy obrabotki staly, Stal 11 (1986) 65-68.
  • [3] H. Dyja, J. Markowski, M. Knapiński, A. Kawałek, B. Koczurkiewicz, The physical modeling of the process of normalizing rolling of S355J2G3A steel plates. Sbornik trudov XIII mezhdunarodnoy nauchno-technicheskoy konferentsi „Mashinostroene y tekhnosfera XXI wieka”. Volume 4, September 11-16, 2006, Doneck, Ukraine, 241-244.
  • [4] A. Kawałek, J. Markowski, M. Knapiński, T. Frączek, H. Dyja, Analysis of deformability of steel 23MnB4 in condition of hot plastic working. Proceedings to the V International Conference „New Technologies in metallurgy and materials Science” 2, Metallurgy 39, WIPMiFS, Częstochowa 2004, 459-464.
  • [5] M.P. Phaniraj, B.B. Behera, A.K. Lahiri, Thermo-mechanical modeling of two phase rolling and microstructure evolution in the hot strip mill, Part I, Prediction of rolling loads and finish rolling temperature, Journal of Materials Processing Technology 170 (2005) 323-335.
  • [6] Y.T. Zhang, D.Z. Li, Y.Y. Li, Modelling of austenite decomposition in plain carbon steels during hot rolling, Journal of Materials Processing Technology 171 (2006) 175-179.
  • [7] B. Smoljan, Prediction of mechanical properties and microstructure distribution of quenched and tempered steel shaft, Journal of Materials Processing Technology 175/1 – 3 (2006) 393-397.
  • [8] G. Zając, J. Pacyna, The kinetics of phase transformations during tempering in structural steels with nickel, Journal of Materials Processing Technology 162-163 (2005) 442-446.
  • [9] X.P. Ren, Z.R. Wang, Study on model of metal structure refinement during hot deformation, Journal of Materials-Processing Technology 151 (2004) 115-118.
  • [10] S. Phadke, P. Pauskar, R. Shivpuri, Computational modeling of phase transformations and mechanical properties during the cooling of hot rolled rod, Journal of Materials Processing Technology 150 (2004) 107-115.
  • [11] S. Serajzadeh, Modelling of temperature history and phase transformations during cooling of steel, Journal of Materials Processing Technology 146 (2004) 311-317.
  • [12] Y.D. Huang, W.Y. Yang, Z.Q. Sun, Formation of ultrafine grained ferrite in low carbon steel by heavy deformation in ferrite or dual phase region, Journal of Materials Processing Technology 134 (2003) 19-25.
  • [13] J.Z. Zhao, C. Mesplont, C. De Cooman, Calculation of the phase transformation kinetics from a dilatation curve, Journal of Materials Processing Technology 129/1-3 (2002) 345-348.
  • [14] M. Pietrzyk, Through-process modelling of microstructure evolution in hot forming of steels, Journal of Materials Processing Technology 125-126 (2002) 53-62.
  • [15] S. Serajzadeh, H. Mirbagheri, A. Karimi Taheri, Modelling the temperature distribution and microstructural changes during hot rod rolling of a low carbon steel, Journal of Materials Processing Technology 125-126 (2002) 89-96.
Typ dokumentu
Bibliografia
Identyfikator YADDA
bwmeta1.element.baztech-article-BOS5-0021-0063
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