For Libraries For Publication Open Access Downloads About Us Contact Us
Paper Titles
Effect of CaO on Thermal Conductivities of Mg and Mg-Zn Alloys
p.437
Manufacturing Technology and Usable Properties of Magnesium Alloy after Plastic Deformation
p.443
Hot Forging of Cast Magnesium Alloy TX31 Using Semi-Closed Die and its Finite Element Simulation
p.449
On the Bonding Strength of Mg-Mg and Mg-Al Material Compounds
p.455
A New Model for Discontinuous and Continuous Precipitation in AZ91 Magnesium Alloy
p.461
Age-Hardening Behavior of Mg-Al-Zn Alloys Produced by Sand Mold Casting
p.467
Microstructure and Mechanical Property in Cast AZ91 Magnesium Alloy with Y Addition
p.472
Method for the Depletion of the Basal Texture in Rolled AZ31 Magnesium Sheets
p.478
Microstructure Evolution of Mg-10Gd-2Y-0.5Zn-0.3Zr Alloy during Isothermal Forging Process
p.485

A New Model for Discontinuous and Continuous Precipitation in AZ91 Magnesium Alloy

Article Preview

Abstract:

The Mg-Al-Zn alloy AZ91 is age hardenable, forming precipitates of –Mg17Al12 after suitable heat treatment. In this alloy both continuous and discontinuous precipitation canoccur. These modes are in competition and lead to very different microstructures. In this paper,a new model is developed to predict this competitive precipitation. The model is validated usingliterature data and then used to study the competition between precipitation modes and predictthe effect of cooling rate from solution treatment on the microstructure expected in AZ91.

You might also be interested in these eBooks
THERMEC 2013 View Preview

Info:

Periodical:

Materials Science Forum (Volumes 783-786)

Pages:

461-466

DOI:

https://doi.org/10.4028/www.scientific.net/MSF.783-786.461

Citation:

Cite this paper

Online since:

May 2014

Authors:

Joseph D. Robson*

Keywords:

Magnesium Alloy, Modeling, Precipitation

Export:

RIS, BibTeX

Price:

Permissions CCC:

Request Permissions

Permissions PLS:

Request Permissions

Сopyright:

© 2014 Trans Tech Publications Ltd. All Rights Reserved

Share:

Citation:

* - Corresponding Author

References

[1] S. Celotto, Acta Mater. 48 (2000) 1775-1787.

Google Scholar

[2] C. R. Hutchinson, J. F. Nie, S. Gorsse, Metall. Mater. Trans. A 36A (2005) 2093-2105.

Google Scholar

[3] K. N. Braszczynska-Malik, J. Alloys and Compounds 447 (2009) 870-876.

Google Scholar

[4] D. Duly, J. P. Simon, Y. Brechet, Acta Metall. Mater. 43 (1995) 101-106.

Google Scholar

[5] R. Kampmann, R. Wagner, Materials Science and Technology, vol. 5, VCH Weinheim, Germany, (1991).

Google Scholar

[6] J. D. Robson, M. J. Jones, P. B. Prangnell, Acta Materialia 51 (2003) 1453.

Google Scholar

[7] K. N. Tu, D. Turnbull, Acta Metall. 15 (1967) 1317-1323.

Google Scholar

[8] L. M. Klinger, Y. J. M. Brechet, G. R. Purdy, Acta Mater. 45 (1997) 5005-5013.

Google Scholar

[9] J. W. Christian, Theory of Transformations in Metals and Alloys, Part 1, Pergamon Press, Oxford, (1975).

Google Scholar

[10] F. J. Humphreys, M. Hatherly, Recrystallization and Related Annealing Phenomena, Pergamon Press, Oxford, U.K., (1996).

Google Scholar

[11] J. Robson, Acta Mater. Submitted.

Google Scholar

[12] D. Duly, Y. Brechet, Acta Metall. Mater. 42 (1994) 3035-3043.

Google Scholar

[13] M. Frebel, K. Behler, B. Predel, Z. Metallkde. 67 (1976) 228-234.

Google Scholar

© 2025 Trans Tech Publications Ltd. All rights are reserved, including those for text and data mining, AI training, and similar technologies. For open access content, terms of the Creative Commons licensing CC-BY are applied.
Scientific.Net is a registered trademark of Trans Tech Publications Ltd.