Czasopismo
2008
|
Vol. 28, nr 1
|
19-22
Tytuł artykułu
Autorzy
Wybrane pełne teksty z tego czasopisma
Warianty tytułu
Języki publikacji
Abstrakty
Purpose: The aim of this research was presentation of the Continuous Cooling Transformations (CCT) diagrams and mechanical properties of two new bainite rail steels with working names RB370 and RB390. Design/methodology/approach: The CCT duiagrams was prepared by dilatometric method. The mechanical properities (Rp0,2, Rm, A, Z, KV, KU2, KIc and KIc-20) was searched according to European Standards. Findings: It was found, that on the whole cross-section of rails (S49 or UIC60) made of this new steels only bainite (mainly low bainite) will be formed. Practical implications: Very high mechanical properties of new grades encouraged to implement the first one (nickel-free with hardness of 370 HBW) on commercial scale. Rails (S49) made of it are successfully operating as part of main exit track from Arcelor Mittal Steel Plant of Poland in Dąbrowa Górnicza since 2004 year. Originality/value: Orginal value of the paper is to give an information, that it is possibility to procedure bainite rails S49 or UIC60 types of a very high mechanical properties, directly in rolling mill.
Rocznik
Tom
Strony
19-22
Opis fizyczny
Bibliogr. 15 poz., il., tab.
Twórcy
autor
- Faculty of Metals Engineering and Industrial Computer Science, AGH University of Science and Technology, Al. Mickiewicza 30, 30-059 Kraków, Poland, pacyna@uci.agh.edu.pl
Bibliografia
- [1] K. Sawley, M. Scholl, The development of bainitic steels for rails, 39th Mechanical Working and Steel Processing Conference USA, 1997, 19-22.
- [2] U. P. Singh, B. Roy, S. Jha, S. K. Bhattacharyya, Microstructure and mechanical properties of as rolled high strength bainitic rail steels, Materials Science and Technology 17 (2001) 33-38.
- [3] S. Cesarz, J. Pacyna, Correlation between pearlite morphology and fracture toughness of rail steels, Proceedings of the 7th International Scientific Conference „Achievements in Mechanical and Materials Engineering” AMME'1998, Gliwice-Zakopane, 1998, 63-68 (in Polish).
- [4] J. Kupczyk, A. K. Lis, B. Koczurkiewicz, Quantitative structural analysis of C-Mn-B steel cooled with different cooling rates, Proceedings of the 13th International Scientific Conference „Achievements in Mechanical and Materials Engineering” AMME'2005, Gliwice-Wisła, 2005, 383-386.
- [5] J. Pacyna, The firstth Polish bainitic rails, Polish Metallurgy in years 2002-2006, Committee of Metallurgy of the Polish Academy of Science, Cracow, 2006, 651-656 (in Polish).
- [6] M. Zhang, J. Qian and H. Gu, The structure stability of carbide-free bainite wheel steel, Journal of Materials Engineering and Performance 16 (2007) 635-639.
- [7] J. Pietrzyk, G. Michta, Bainitic transformation in steel contain Mn and Si, Proceedings of the 7th International Scientific Conference „Achievements in Mechanical and Materials Engineering” AMME'1998, Gliwice-Zakopane, 1998, 423-434 (in Polish).
- [8] J. Pacyna, S. Liszka, G. Henel, B. Szost, Investigation of welds the firsth polish bainitic steels, Proceedings of the 3rd Polish Science an Technology Conference, Polish Association of Engineers and Technicans of Transportation. Warsaw-Bochnia, March 2007 (in Polish).
- [9] W. Osuch, A. Kruk, G. Michta, J. Pietrzyk, Microstructure and properties of low-carbon bainitic steel, Proceedings of the 10th International Scientific Conference „Achievements in Mechanical and Materials Engineering” AMME'2001, Gliwice-Cracow-Zakopane, 2001, 405-416 (in Polish).
- [10] R. Jones, B. Chen, S. Pitt, Similitude: fatigue cracking in steels, Theoretical and Applied Fracture Mechanics 48 (2007) 161-168.
- [11] J. E. Garnham, F. J. Franklin, D. I. Fletcher, A. Kapoor, C. L. Davies, Predicting the life of steel rails, Proceeding of the Institution of Mechanical Engineers, Part F. Journal of Rail and Rapid Transit 221 (2007) 45-58.
- [12] M. R. Green, W. M. Rainforth, M. F. Frolish, J. H. Beynon, The effect of microstructure and composition on the rolling contact fatigue behaviour of cast bainitic steels, Wear 263 (2007) 756-765.
- [13] G. Zając, J. Pacyna, The effect of nickel on mechanical properties of structural steels model alloys, Proceedings of the 11th Scientific Conference „Contemporary Achievements in Mechanics, Manufacturing and Materials Science” CAM3S 2005, Gliwice-Zakopane, 2005 (CD-ROM).
- [14] J. Krawczyk, J. Pacyna, M. Stradomski, T. Śleboda, The cooling rate distribution in a cross-section of air-cooled UIC60 rail, XXIX School of Materials Engineering, Kraków-Wisła, 2001, 447-452 (in Polish).
- [15] J. Krawczyk, J. Pacyna, T. Śleboda, The cooling simulation of air-cooled UIC60 rail, XXIII Science and Technology Conference of Katowice Iron Works SITPH, Rogoźnik, 2003, 49-58 (in Polish).
Typ dokumentu
Bibliografia
Identyfikatory
Identyfikator YADDA
bwmeta1.element.baztech-article-BWAN-0003-0003