Nucleation kinetics of the γ-phase in a binary Mg-Al alloy
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Nucleation kinetics of the γ-phase in a binary Mg-Al alloy. / Lalpoor, Mehdi; Dzwonczyk, J. S.; Hort, N. et al.
Magnesium Technology 2013 - Held During the TMS 2013 Annual Meeting and Exhibition. Hrsg. / Norbert Hort; Suveen Mathaudhu; Neale Neelameggham; Martyn Alderman. The Minerals, Metals & Materials Society, 2013. S. 259-262 (Magnesium Technology).Publikation: Beiträge in Sammelwerken › Aufsätze in Konferenzbänden › Forschung › begutachtet
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TY - CHAP
T1 - Nucleation kinetics of the γ-phase in a binary Mg-Al alloy
AU - Lalpoor, Mehdi
AU - Dzwonczyk, J. S.
AU - Hort, N.
AU - Offerman, S. E.
N1 - Conference code: 142
PY - 2013
Y1 - 2013
N2 - The binary magnesium-aluminum system has been studied extensively the last decades. Surprisingly, the kinetics of nucleation of the γ-precipitates (Mg17Al12) in the α-matrix have not been determined experimentally in detail. The main goal of this research is to investigate the precipitation kinetics of the γ-phase in a Mg-Al alloy during annealing, and to understand the relation between the precipitate volume fraction and the mechanical properties of the material. Comprehensive microstructural analysis was undertaken to reveal the number density, volume fraction, and morphological changes of the γ-precipitates after solution heat treatment (homogenization) and during subsequent annealing below the solvus temperature. As a result, the incubation time and steady state nucleation rate of γ-precipitates in the α-matrix were determined by fitting the experimental data to the classical nucleation theory.
AB - The binary magnesium-aluminum system has been studied extensively the last decades. Surprisingly, the kinetics of nucleation of the γ-precipitates (Mg17Al12) in the α-matrix have not been determined experimentally in detail. The main goal of this research is to investigate the precipitation kinetics of the γ-phase in a Mg-Al alloy during annealing, and to understand the relation between the precipitate volume fraction and the mechanical properties of the material. Comprehensive microstructural analysis was undertaken to reveal the number density, volume fraction, and morphological changes of the γ-precipitates after solution heat treatment (homogenization) and during subsequent annealing below the solvus temperature. As a result, the incubation time and steady state nucleation rate of γ-precipitates in the α-matrix were determined by fitting the experimental data to the classical nucleation theory.
KW - Mg-Al alloys
KW - Nucleation kinetics
KW - Precipitation
KW - Engineering
UR - http://www.scopus.com/inward/record.url?scp=84876039580&partnerID=8YFLogxK
U2 - 10.1007/978-3-319-48150-0_43
DO - 10.1007/978-3-319-48150-0_43
M3 - Article in conference proceedings
AN - SCOPUS:84876039580
SN - 978-1-118-60552-3
SN - 978-3-319-48149-4
T3 - Magnesium Technology
SP - 259
EP - 262
BT - Magnesium Technology 2013 - Held During the TMS 2013 Annual Meeting and Exhibition
A2 - Hort, Norbert
A2 - Mathaudhu, Suveen
A2 - Neelameggham, Neale
A2 - Alderman, Martyn
PB - The Minerals, Metals & Materials Society
T2 - 142nd Annual Meeting and Exhibition of the Magnesium Technology 2013 - TMS 2013
Y2 - 3 March 2013 through 7 March 2013
ER -