Nucleation mechanism of Mg17Al12-precipitates in binary Mg-7 wt.% Al alloy
Publikation: Beiträge in Zeitschriften › Zeitschriftenaufsätze › Forschung › begutachtet
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in: Journal of Alloys and Compounds, Jahrgang 557, 25.04.2013, S. 73-76.
Publikation: Beiträge in Zeitschriften › Zeitschriftenaufsätze › Forschung › begutachtet
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TY - JOUR
T1 - Nucleation mechanism of Mg17Al12-precipitates in binary Mg-7 wt.% Al alloy
AU - Lalpoor, M.
AU - Dzwonczyk, J. S.
AU - Hort, N.
AU - Offerman, S. E.
PY - 2013/4/25
Y1 - 2013/4/25
N2 - We show that the classical nucleation theory that describes the critical nucleus as a coherent pill-box fits the experimentally measured nucleation rate of Mg17Al12-precipitates in undeformed Mg-7 wt.% Al alloy much more accurately than the classical theory that describes the critical nucleus as an incoherent sphere. The nucleation of Mg17Al 12-precipitates takes place in the transient nucleation regime. Coarsening of the Mg17Al12-precipitates occurs just before the steady state nucleation rate is reached.
AB - We show that the classical nucleation theory that describes the critical nucleus as a coherent pill-box fits the experimentally measured nucleation rate of Mg17Al12-precipitates in undeformed Mg-7 wt.% Al alloy much more accurately than the classical theory that describes the critical nucleus as an incoherent sphere. The nucleation of Mg17Al 12-precipitates takes place in the transient nucleation regime. Coarsening of the Mg17Al12-precipitates occurs just before the steady state nucleation rate is reached.
KW - Magnesium-aluminum alloys
KW - Nucleation kinetics
KW - Precipitation
KW - Engineering
UR - http://www.scopus.com/inward/record.url?scp=84873028627&partnerID=8YFLogxK
U2 - 10.1016/j.jallcom.2012.12.116
DO - 10.1016/j.jallcom.2012.12.116
M3 - Journal articles
AN - SCOPUS:84873028627
VL - 557
SP - 73
EP - 76
JO - Journal of Alloys and Compounds
JF - Journal of Alloys and Compounds
SN - 0925-8388
ER -