Abstract
The 30Cr2Ni4MoV steel is used to fabricate rotors for the nuclear industry. It required a high grade of the grain size. For the regular grain growth during solidification process under different thermal conditions, a study was performed to simulate the grain structure in different zones in heavy ingot. Based on the café module in procast software, a numerical simulation was conducted. The simulation results show that if the parameters a2 and a3 are set to 8.9 × 10−6 and 4.5 × 10−6, respectively, then the simulation results are fit to the experimental results. The numerical simulations provides data on the grain morphology and the ratio of the columnar and equaixed areas. The numerical results are useful as the grain structure in heavy ingots can be revealed.
Foundation Item: Item Sponsored by Foundation for University Key Teacher abroad visiting program of Anhui Province Education Ministry (gxfxZD2016248) and Natural Science Foundation of Anhui Province Colleges (KJ2016A702)
Access this chapter
Tax calculation will be finalised at checkout
Purchases are for personal use only
References
Wang JQ, Fu PX, Liu HW, Li DZ, Li YY (2012) Shrinkage porosity criteria and optimized design of a 100-ton 30Cr2Ni4MoV forging ingot. Mater Des 35:446–456
Chen F, Cui ZS, Chen SJ (2011) Recrystallization of 30Cr2Ni4MoV ultra-super-critical rotor steel during hot deformation. Part I: dynamic recrystallization. Mater Sci Eng A 15:5073–5080
Wang YP, Han CJ, Wang C, Li SK (2011) A modified Johnson–Cook model for 30Cr2Ni4MoV rotor steel over a wide range of temperature and strain rate. J Mater Sci 9:2922–2927
Chen F, Cui ZS, Chen SJ (2012) Recrystallization of 30Cr2Ni4MoV ultra-super-critical rotor steel during hot deformation. Part Ш: metadynamic recrystallization. Mater Sci Eng A 540:46–54
Cui ZS, Li CD, Chen F, Sui DS (2013) Modeling and simulation of austenite grain evolution for heavy forging steel 30Cr2Ni4Mo V undergoing hot deformation. Paper presented at the 11th International Conference on Numerical Methods in Industrial Forming Processes 2013, pp 166–174
Wang YB, Chu WY, Qiao LJ (2000) Stress Corrosion Cracking and Blue Brittleness of Rotor Steels in High Temperature Aqueous Solutions. J Mater Sci Technol 6:631–633
Combeau H, Založnik M, Hans S, Richy E (2009) Prediction of macrosegregation in steel ingots: influence of the motion and the morphology of equiaxed grains. Metall Mater Trans B 40:289–304
Wu M, Ludwig A (2009) Modeling equiaxed solidification with melt convection and grain sedimentation—II. Model verification. Acta Mater 57:5632–5644
Zaloznik M, Combeau H (2012) The influence of the morphology evolution of free-floating equiaxed grains on the macrosegregation in a 3.3-ton steel ingot. Paper presented at the 141th TMS Annual Meeting, Orlando, Florida, 11–15 March 2012, 452–460
Wu M, Ludwig A (2009) Modeling equiaxed solidification with melt convection and grain sedimentation—I: model description. Acta Mater 57:5621–5631
Li DZ, Chen XQ, Fu PX, Ma XP, Liu HW, Chen Y, Cao YF, Luan YK, Li YY (2014) Evidence of Stranski–Krastanov growth at the initial stage of atmospheric water condensation. Nature Communication 5:1–8
Li W (2014) Modeling of species transport and macrosegregation in heavy steel ingots. Metall Mater Trans B 45:464–471
Gäumann M, Trivedi R, Kurz W (1997) Nucleation ahead of the advancing interface in directional solidification. Mater Sci Eng A 226–228:763–769
Lesoult G (2005) Macrosegregation in steel strands and ingots: characterisation, formation and consequences. Mater Sci Eng A 413–414:19–29
Gu JP, Beckermann C (1999) Simulation of convection and macrosegregation in a large steel ingot. Metall Mater Trans A 30:1357–1366
Pardeshi R, Dutta P, Singh AK (2009) Modeling of convection and macrosegregation through appropriate consideration of multiphase/multiscale phenomena during alloy solidification. Ind Eng Chem Res 48:8789–8804
Wu M, Fjeld A, Ludwig A (2010) Modelling mixed columnar-equiaxed solidification with melt convection and grain sedimentation–Part I: model description. Comput Mater Sci 50:32–42
Rappaz M (1989) Modelling of microstructure formation in solidification processes. Int Mater Rev 34:93–24
Zhao J, Zhang J, Zhai Q (2014) Numerical simulation of flow and heat transfer during ingot solidification process. Shanghai Metal 1:55–58
Li W, Shi W (2011) Numerical simulation of macrosegregation during steel ingot solidification using continuum model. J Shanghai JiaoTong Univ (Science) 2:145–148
Author information
Authors and Affiliations
Corresponding author
Editor information
Editors and Affiliations
Rights and permissions
Copyright information
© 2018 The Minerals, Metals & Materials Society
About this paper
Cite this paper
Chen, Z., Zhang, J. (2018). Numerical Simulation on Solidification Structure of 30Cr2Ni4MoV Steel Under Different Temperature Gradient Using Procast Software. In: Nastac, L., Pericleous, K., Sabau, A., Zhang, L., Thomas, B. (eds) CFD Modeling and Simulation in Materials Processing 2018. TMS 2018. The Minerals, Metals & Materials Series. Springer, Cham. https://doi.org/10.1007/978-3-319-72059-3_1
Download citation
DOI: https://doi.org/10.1007/978-3-319-72059-3_1
Published:
Publisher Name: Springer, Cham
Print ISBN: 978-3-319-72058-6
Online ISBN: 978-3-319-72059-3
eBook Packages: Chemistry and Materials ScienceChemistry and Material Science (R0)