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Study of growth advantage of twinned dendrites in aluminum alloys during Bridgman solidification

Published online by Cambridge University Press:  16 October 2018

Luyan Yang Open the ORCID record for Luyan Yang [Opens in a new window] ,
Shuangming Li ,
Yang Li ,
Kai Fan  and
Hong Zhong
Luyan Yang
Affiliation:
State Key Laboratory of Solidification Processing, Northwestern Polytechnical University, Xi’an 710072, China
Shuangming Li*
Affiliation:
State Key Laboratory of Solidification Processing, Northwestern Polytechnical University, Xi’an 710072, China
Yang Li
Affiliation:
State Key Laboratory of Solidification Processing, Northwestern Polytechnical University, Xi’an 710072, China
Kai Fan
Affiliation:
State Key Laboratory of Solidification Processing, Northwestern Polytechnical University, Xi’an 710072, China
Hong Zhong
Affiliation:
State Key Laboratory of Solidification Processing, Northwestern Polytechnical University, Xi’an 710072, China
*
a)Address all correspondence to this author. e-mail: lsm@nwpu.edu.cn
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Abstract

The growth advantage of twinned dendrites over regular columnar ones was systematically investigated during Bridgman solidification. An experimental approach was designed and the results indicated that the strong twin growth advantage lost its efficiency in the coexisting microstructure containing both twinned and regular dendrites at a low growth rate of 10 μm/s. The twin growth advantage derives from three essential components: the lateral twin propagation perpendicular to twin plane (Rx), the propagation parallel to twin plane (Ry), and the dendrite tip growth (Rz). The lateral extension component Rx played a vital role and would be limited at a low rate. Meanwhile, the tip undercooling of the twinned dendrite was estimated based on its plate-like growth morphology. Furthermore, the competitive growth between twinned dendrites was investigated in different feathery grains. When the included angle between twin planes was relatively large, the lateral twin propagation would keep down the in-plane twin propagation.

Keywords

directional solidificationcrystal growthalloy
Type
Article
Information
Journal of Materials Research , Volume 34 , Issue 2 , 28 January 2019 , pp. 240 - 250
Copyright
Copyright © Materials Research Society 2018 

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References

REFERENCES

Haxhimali, T., Karma, A., Gonzales, F., and Rappaz, M.: Orientation selection in dendritic evolution. Nat. Mater. 5, 660 (2006).CrossRefGoogle ScholarPubMed
Salgado-Ordorica, M.A. and Rappaz, M.: Twinned dendrite growth in binary aluminum alloys. Acta Mater. 56, 5708 (2008).CrossRefGoogle Scholar
Kurtuldu, G., Jarry, P., and Rappaz, M.: Influence of Cr on the nucleation of primary Al and formation of twinned dendrites in Al–Zn–Cr alloys: Can icosahedral solid clusters play a role? Acta Mater. 61, 7098 (2013).CrossRefGoogle Scholar
Yang, L., Li, S., Chang, X., Zhong, H., and Fu, H.: Twinned dendrite growth during Bridgman solidification. Acta Mater. 97, 269 (2015).CrossRefGoogle Scholar
Srivastava, A.K. and Ranganathan, S.: Microstructural characterization of rapidly solidified Al–Fe–Si, Al–V–Si, and Al–Fe–V–Si alloys. J. Mater. Res. 16, 2103 (2001).CrossRefGoogle Scholar
Li, X., Li, Q., Ren, Z., Fautrelle, Y., Lu, X., Gagnoud, A., Zhang, Y., Esling, C., Wang, H., and Dai, Y.: Investigation on the formation mechanism of irregular dendrite during directional solidification of Al–Cu alloys under a high magnetic field. J. Alloys Compd. 581, 769 (2013).CrossRefGoogle Scholar
Turchin, A.N., Zuijderwijk, M., Pool, J., Eskin, D.G., and Katgerman, L.: Feathery grain growth during solidification under forced flow conditions. Acta Mater. 55, 3795 (2007).CrossRefGoogle Scholar
Henry, S., Jarry, P., and Rappaz, M.: 〈110〉 dendrite growth in aluminum feathery grains. Metall. Mater. Trans. A 29A, 2807 (1998).CrossRefGoogle Scholar
Salgado Ordorica, M.A.: Characterization and Modeling of Twinned Dendrite Growth (Ecole Polytechnique Fédérale de Lausanne, Switzerland, 2009).Google Scholar
Yang, L., Li, S., Guo, J., Fan, K., Li, Y., Zhong, H., and Fu, H.: Growth stability of twinned dendrites in directionally solidified Al–4.5 wt% Cu alloy. Mater. Lett. 214, 205 (2017).CrossRefGoogle Scholar
Henry, S., Gruen, G.U., and Rappaz, M.: Influence of convection on feathery grain formation in aluminum alloys. Metall. Mater. Trans. A 35A, 2495 (2004).CrossRefGoogle Scholar
Eady, J.A. and Hogan, L.M.: Some crystallographic observations of growth-twinned dendrites in aluminum. J. Cryst. Growth 23, 129 (1974).CrossRefGoogle Scholar
Wood, H.J., Hunt, J.D., and Evans, P.V.: Modelling the growth of feather crystals. Acta Mater. 45, 569 (1997).CrossRefGoogle Scholar
Salgado-Ordorica, M.A., Burdet, P., Cantoni, M., and Rappaz, M.: Study of the twinned dendrite tip shape II: Experimental assessment. Acta Mater. 59, 5085 (2011).CrossRefGoogle Scholar
Salgado-Ordorica, M.A., Desbiolles, J.L., and Rappaz, M.: Study of the twinned dendrite tip shape I: Phase-field modeling. Acta Mater. 59, 5074 (2011).CrossRefGoogle Scholar
Walton, D. and Chalmers, B.: The origin of the preferred orientation in the columnar zone of ingots. Trans. Metall. Soc. AIME 215, 447 (1959).Google Scholar
Gandin, C-A. and Rappaz, M.: A coupled finite element-cellular automaton model for the prediction of dendritic grain structures in solidification processes. Acta Metall. Mater. 42, 2233 (1994).CrossRefGoogle Scholar
Rappaz, M. and Gandin, C-A.: Probabilistic modelling of microstructure formation in solidification processes. Acta Metall. Mater. 41, 345 (1993).CrossRefGoogle Scholar
Zhou, Y., Volek, A., and Green, N.: Mechanism of competitive grain growth in directional solidification of a nickel-base superalloy. Acta Mater. 56, 2631 (2008).CrossRefGoogle Scholar
Li, J., Wang, Z., Wang, Y., and Wang, J.: Phase-field study of competitive dendritic growth of converging grains during directional solidification. Acta Mater. 60, 1478 (2012).CrossRefGoogle Scholar
Han, K., Hirth, J., and Embury, J.: Modeling the formation of twins and stacking faults in the Ag–Cu system. Acta Mater. 49, 1537 (2001).CrossRefGoogle Scholar
Hirth, J. and Pond, R.: Compatibility and accommodation in displacive phase transformations. Prog. Mater. Sci. 56, 586 (2011).CrossRefGoogle Scholar
Kurz, W., Giovanola, B., and Trivedi, R.: Theory of microstructural development during rapid solidification. Acta Metall. 34, 823 (1986).CrossRefGoogle Scholar
Kurz, W. and Fisher, D.J.: Fundamentals of Solidification, 4th revised ed. (Trans Tech Publication, Switzerland, 1998).Google Scholar
Salgado-Ordorica, M.A., Valloton, J., and Rappaz, M.: Study of twinned dendrite growth stability. Scr. Mater. 61, 367 (2009).CrossRefGoogle Scholar
Aziz, M.: Model for solute redistribution during rapid solidification. J. Appl. Phys. 53, 1158 (1982).CrossRefGoogle Scholar
Meng, X.B., Lu, Q., Zhang, X.L., Li, J.G., Chen, Z.Q., Wang, Y.H., Zhou, Y.Z., Jin, T., Sun, X.F., and Hu, Z.Q.: Mechanism of competitive growth during directional solidification of a nickel-base superalloy in a three-dimensional reference frame. Acta Mater. 60, 3965 (2012).CrossRefGoogle Scholar
Gill, S. and Kurz, W.: Rapidly solidified Al–Cu alloys—II. Calculation of the microstructure selection map. Acta Metall. Mater. 43, 139 (1995).Google Scholar