Phase-Field Simulation of Dendrite Growth of Magnesium Alloy under Non-Isothermal Solidification

Long Zhi Zhao; Xin Yan Jiang; Ming Juan Zhao; Jian Zhang

doi:10.4028/www.scientific.net/AMR.848.231

Paper Titles

An H-Phosphonate Strategy for the Synthesis of Aciclovir 5′-triphosphate
p.215

A Novel Synthesis of 3-Bromo-1,2-Propanediol from 3-Oxetanol
p.219

Synthesis of Nucleoside 5′-H-Phosphonothioates via Nucleoside 5′-Phosphinate Intermediates
p.223

Study on In Situ Purification Technology for Improving Water Quality of Reservoir Water
p.227

Phase-Field Simulation of Dendrite Growth of Magnesium Alloy under Non-Isothermal Solidification
p.231

The Resource Utilization of Color Steel Plate Waste Residue
p.236

Resource Potential Classification Evaluation of E₂S₄² Shale Oil in Damintun Depression
p.240

The Movable Resource Volume Evaluation of Qingshankou Formation Shale Oil in Northern Songliao Basin
p.246

Analysis of Coalbed Methane (CBM) Enrichment and Main Controlling Factors in Southern Junggar Basin
p.251

HomeAdvanced Materials ResearchAdvanced Materials Research Vol. 848Phase-Field Simulation of Dendrite Growth of...

Phase-Field Simulation of Dendrite Growth of Magnesium Alloy under Non-Isothermal Solidification

Abstract:

The phase-field model was built by coupling with the concentration field and temperature field,The dendrite growth process of Magnesium alloy was simulated under the different anisotropic strength and different undercooling.The results show that with the enlarge of anisotropic strength, dendritic morphology change from seaweed-like to snow-like, trunk grows along the optimal direction,and the secondary dendrite arm grow along the most optimize direction as well; With undercooling increasing, the more coarse primary dendrite arm, the more developed secondary dendrite arm, dendrites around the thermal diffusion layer becomes thinner,and dendrite tip’s thermal diffusion layer is thinner than the dendrite roots,but segregation phenomenon decreases slowly. When Δ=1.0, the grain will directly generate cellular dendrite and it does’t appear segregation phenomenon

You might also be interested in these eBooks

Advanced Research on Energy, Chemistry and Materials Application

View Preview

Info:

Periodical:

Advanced Materials Research (Volume 848)

Pages:

231-235

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.848.231

Citation:

Cite this paper

Online since:

November 2013

Authors:

Long Zhi Zhao*, Xin Yan Jiang, Ming Juan Zhao, Jian Zhang

Keywords:

Anisotropy, Dendrite Growth, Phase-Field, Undercooling

Export:

RIS, BibTeX

Price:

Permissions CCC:

Request Permissions

Permissions PLS:

Request Permissions

Сopyright:

Citation:

* - Corresponding Author

References

[1] Y.Q. Long, P. Liu, Y. Lin et al. Simulation of Recrystallization Grain Growth during Re-aging Process in the Cu-N-Si Alloy Based on Phase Field Model, J. Vol. 62 (2008) No. 17, p.3039.

DOI: 10.1016/j.matlet.2008.01.118

Google Scholar

[2] D.N. Bhate, A. Kumar, A.F. Bawer. A diffuse interface model for electromigraction and stress voiding, J. Vol. 87 (2000) No. 4, p.1712.

Google Scholar

[3] Y.M. Yu, Y.L. Lv, Z.Z. Zhang et al. Progress in numerical simulation of solidification microstructure using phase-field method, J. Vol. 49 (2000) No. 9, p.507.

Google Scholar

[4] X.F. Yuan, Y.T. Ding, T.B. Guo et al. Phase-field method of dendritic growth under convection, J. Vol. 20 (2010) No. 4, p.681.

Google Scholar

[5] R. Kobayashi. Modeling and Numerical Simulations of Dendritic Crystal Growth, J. Vol. 63 (1993) No. 10, p.410.

Google Scholar

[6] H.K. Lin, C.C. Chen, C.W. Lan. Adaptive three-dimensional phase-field modeling of dendritic crystal growth with high anisotropy, J. Vol. 318 (2011), p.51.

DOI: 10.1016/j.jcrysgro.2010.11.013

Google Scholar

[7] A. Badillo, C. Beckermann. Phase-filed simulation of the columnar-to-equiaxed transition in alloy solidification, J. Vol. 54 (2006), p. (2015).

DOI: 10.1016/j.actamat.2005.12.025

Google Scholar

[8] M.Y. Wang, T. Jing, B.C. Liu. Phase-field simulation of dendrite morphologies and selected of primary α-Mg phase during the solidification of Mg-rich Mg-Al-based alloys, J. Vol. 61 (2009), p.777.

DOI: 10.1016/j.scriptamat.2009.06.028

Google Scholar