Abstract
A thermodynamic database of Mg-Al-Ca-Sr, a basic quaternary for a number of commercial magnesium alloys such as AXJ530 (Mg-4.5Al-3.0Ca-0.14Sr, weight percent hereafter, unless noted otherwise) was developed. Calculated isopleth from Mg-5Al-3Ca to Mg-5Al-3Sr agrees with experimental data reported in the literature. Moreover, using this database and a simple kinetic model proposed by Scheil, the calculated solidification paths of several alloys are likewise in accord with experimental data. Thus, the availability of this database enables one to exploit new alloy compositions for promising properties which can be rapidly validated with few experiments.
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References
R. Ninomiya, T. Oj iro, and K. Kubota, “Improved heat resistance of Mg-Al alloys by the Ca addition” Acta Metall Mater, 43(2)(1995), 669–674.
B.R. Powell et al., “Development of creep-resistant magnesium alloys for powertrain applications: Part 1 of 2”. Society of Automotive Engineers, [Special Publication] SP(2001), SP-1622(Light Metal Applications for the Automotive Industry: Aluminum and Magnesium), 29–36.
A.A. Luo, B.R. Powell, M.P. Balogh, “Creep and micro structure of magnesium-aluminum-calcium based alloys” Metall Mater Trans A 33(2002), 567–574.
Y. Nakaura, A. Watanabe, K. Ohori, “Effects of Ca,Sr additions on properties of Mg-Al based alloys” Mater Trans, 47(4)(2006), 1031–1039.
Y. Zhong et al., “Computational thermodynamics and experimental investigation of Mg-Al-Ca-Sr alloys” in Magnesium Technology 2002 (Editors: Kaplan H.I.), TMS, 2002, 69–73.
Y.A. Chang et al., “Phase diagram calculation: past, present and future” Prog Mater Sci, 49(2004), 313–345.
H. Cao et al., “Experiment coupled with modeling to establish the Mg-rich phase equilibria of Mg-Al-Ca” Acta Mater, 2007, accepted.
H. Cao et al., “Experimental investigation and thermodynamic modeling of the Mg-Al-rich region of the Mg-Al-Sr system” Int J Mat Res (formerly Z Metallkd), 97(4)(2006), 422–428.
A. Suzuki et al, “Solidification paths and eutectic intermetallic phases in Mg-Al-Ca ternary alloys” Acta Mater, 53(2005), 2823–2834.
Schmid-Fetzer R. private communication, Clausthal University of Technology, Clausthal-Zellerfeld, Germany, 2006.
H. Cao et al., “A computational/directional solidification method to establish saddle points on the Mg-Al-Ca liquidus” Scripta Mater, 2007, in press
M.A. Parvez et al., “Experimental study of the ternary magnesium-aluminum-strontium system” J Alloys Comp, 402(2007), 170–185.
Y.M. Muggianu, M. Gambino, J.P Bros, “Enthalpies of formation of liquid alloys bismuth-gallium-tin at 723.deg.K. Choice of an analytical representation of integral and partial excess functions of mixing” J Chimie Physique, 72(1)(1975), 83–88.
Y. Zhong et al., “Thermodynamics modeling of the Mg-Sr and Ca-Mg-Sr systems” J Alloys and Comp, 421(2006), 172–178.
Pandat 7.0-Phase diagram calculation software for multicomponent systems, Computherm LLC, 437 S. Yellowstone Dr., Suite217, Madison, WI, 53719, USA, 2007.
A. Suzuki et al., “Effect of Sr additions on the microstructure and strength of a Mg-Al-Ca ternary alloy” Metall Mater Trans A, 38(2007), 420–427.
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Cao, H., Zhu, J., Zhang, C., Chang, Y.A. (2016). Thermodynamic Database of Mg-Al-Ca-Sr: A Resource for Alloy Development and Improvement. In: Mathaudhu, S.N., Luo, A.A., Neelameggham, N.R., Nyberg, E.A., Sillekens, W.H. (eds) Essential Readings in Magnesium Technology. Springer, Cham. https://doi.org/10.1007/978-3-319-48099-2_69
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DOI: https://doi.org/10.1007/978-3-319-48099-2_69
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