Warianty tytułu
Języki publikacji
Abstrakty
A solidification model for ductile iron, including Weibull formula for nodule count has been presented. From this model, the following can be determined: cooling curves, kinetics of austenite and eutectic nucleation, austenite and eutectic growth velocity, volume fraction, distribution of Si and P both in austenite and eutectic grain with distribution in casting section. In the developed model of nodular graphite iron casting solidification, the correctness of the mathematical model has been experimentally verified in the range of the most significant factors, which include temperature field, the value of maximum undercooling, and the graphite nodule count interrelated with the casting cross-section. Literature offers practically no data on so confronted process model and simulation program.
Czasopismo
Rocznik
Tom
Strony
95-102
Opis fizyczny
Bibliogr. 19 poz., tab., wykr.
Twórcy
autor
autor
autor
- Faculty of Foundry Engineering, AGH University of Science and Technology, Reymonta 23, 30-059 Krakow, Poland, kaptur@agh.edu.pl
Bibliografia
- [1] D. M. Stefanescu, A. Catalina, X. Guo, L. Chuzhoy, M. A. Pershing and G. L. Biltgen, Prediction of room temperature mcrostructure and mechanical properties in iron castings, Modeling of Casting, Welding and Advanced Solidification Process, The Minerals, Metals & Materials Society (1998) 455-462.
- [2] S. M. Yoo, A. Ludwig and P. R. Sahm, Numerical simulation of nodular cast Iron in permanent moulds, Solidification Processing, Renmor House, Univ. of Sheffield (1997) 494-497.
- [3] Chang S., Shangguan D. and Stefanescu D., Modeling of the liquid/solid and the eutectoid phase transformation in spheroidal graphite cast iron, Metal. Trans. A, vol. 23A (1992) 1333-1346.
- [4] T. Skaland, O. Grong and T. Grong, A model for the graphite formation in ductile cast iron, Metal. Trans. A, vol. 24A (1993) 2347-2353.
- [5] G. Lesoult, M. Castro and J. Lacaze, Solidification of spheroidal graphite cast iron, Acta Mater., vol. 46, 3, (1998) 983-995, 997-1010.
- [6] M. I. Onsoien, O. Grong, O. Gundersen and T. Skaland , A process model for the micro-structure evolution in ductile cast iron: part I, Metall. Mat. Trans. A, vol. 30A, (1999)1053-1068.
- [7] E. Fraś, W. Kapturkiewicz, A. A. Burbelko, H. F. Lopez, Modeling of graphitization kinetics in nodular cast iron casting. Modeling of Casting, Welding and Advanced Solidification Processes IX.Ed. P. Sahm, P. N.Hansen, J. G. Conley, Aachen, Shaker 2000, s. 885-892.
- [8] D. M. Stefanescu and D. K. Bandyopadhyay, On the solidification kinetics of spheroidal graphite cast iron, Proc. 3rd Int. Symp. on "Metallurgy of cast iron", Tokyo, Japan, (1989), 15-26.
- [9] D. K. Banerjee, D. M. Stefanescu, Structural transitions and solidification kinetics of SG cast iron during directional solidification experiments. AFS Transactions vol. 99 (1991) 747-759.
- [10] G. L. Rivera, R. Boeri, J. Sikora, Revealing the solidification structure of nodular iron, Cast Metals vol. 8 (1995) 1-5.
- [11] D. J. Celentano, P. M. Dardati, L. A. Godoy, R. E. Boeri, Computational simulation of microstructure evolution during solidification of ductile cast iron, Int. J. Cast Metals Res. vol. 21, 6 (2008) 416-426.
- [12] Kolmogorov A. N. , K statističeskoj teorii kristallizacii metallov, Izvestiya Akademii Nauk SSSR, vol. 3(1937), 355-359 (in Russian).
- [13] W. Oldfield, A quantitative approach to casting solidification. Freezing of Cast Iron, Trans. of ASM, 59 (1966), 945-961.
- [14] E. Fraś, K. Wiencek, M. Górny, H. Lopez, Nucleation and grains density - A theoretical model and experimental verification. Archives of Metallurgy vol. 46 (2001) 317-333.
- [15] D. M. Stefanescu, Science and Engineering of Casting Solidification. Springer Verlag, second ed. (2008).
- [16] Döpp R., The Metallurgy of Cast Iron. Georgi Publishing Co, S. Saphorin, (1975) p. 655.
- [17] Neumann F., The influence of additional elements on the physics chemical behavior of carbon in carbon saturated molten iron, Recent Research in Cast Iron, Gordon and Breach, New York (1968) p. 659.
- [18] E. Fraś, K. Wiencek, M. Górny, H. F. Lopez, Nodule count in ductile iron: theoretical model based on Weibull statisctic, Int. J. Cast Metals Research vol. 18, No. 3 (2005) 156-162.
- [19] K. Wiencek, J. Ryś, The estimation of Fe_3 C particle density in steel by simple counting measurements made in plan sections Mat. Eng. vol. 3 (1998) 396-399.
Typ dokumentu
Bibliografia
Identyfikatory
Identyfikator YADDA
bwmeta1.element.baztech-article-BPZ1-0072-0018