TY - JOUR
T1 - Amorphous and quasi-crystalline phases in rapidly solidified MgAlZn alloys
AU - Niikura, Akio
AU - Sai, Ampo
AU - Nishiyama, Nobuyuki
AU - Inoue, Akihisa
AU - Masumoto, Tsuyoshi
PY - 1994/5/15
Y1 - 1994/5/15
N2 - The formation of amorphous and icosahedral phases and approximants has been identified in rapidly solidified MgAlZn alloys. The icosahedral phase is located at the composition range between those of the amorphous phase and approximants. Mg40Al40Zn20 is a cubic 1 1 approximant in the equilibrium state and a cubic 5 3 rational approximant in the rapidly solidified state. Rapidly solidified Mg50Al30Zn20 and Mg50Al20Zn30 have a disordered icosahedral structure with a high density of random phason strain. The valence concentration e/a plays an important role in the selections of rapidly solidified structure between the amorphous and the icosahedral phases and of phason strains between isotropic and anisotropic.
AB - The formation of amorphous and icosahedral phases and approximants has been identified in rapidly solidified MgAlZn alloys. The icosahedral phase is located at the composition range between those of the amorphous phase and approximants. Mg40Al40Zn20 is a cubic 1 1 approximant in the equilibrium state and a cubic 5 3 rational approximant in the rapidly solidified state. Rapidly solidified Mg50Al30Zn20 and Mg50Al20Zn30 have a disordered icosahedral structure with a high density of random phason strain. The valence concentration e/a plays an important role in the selections of rapidly solidified structure between the amorphous and the icosahedral phases and of phason strains between isotropic and anisotropic.
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U2 - 10.1016/0921-5093(94)90870-2
DO - 10.1016/0921-5093(94)90870-2
M3 - Article
AN - SCOPUS:0028427233
VL - 181-182
SP - 1387
EP - 1391
JO - Materials Science & Engineering A: Structural Materials: Properties, Microstructure and Processing
JF - Materials Science & Engineering A: Structural Materials: Properties, Microstructure and Processing
SN - 0921-5093
IS - C
ER -