TY - JOUR
T1 - Variation of long-period stacking order structures in rapidly solidified Mg97Zn1Y2 alloy
AU - Matsuda, M.
AU - Ii, S.
AU - Kawamura, Y.
AU - Ikuhara, Y.
AU - Nishida, M.
N1 - Funding Information:
This study was supported by a Grant-in-Aid for Scientific Research on Priority Area (B), “Platform Science and Technology for Advanced Magnesium Alloys” from the Ministry of Education, Culture, Sports, Science and Technology of Japan, and by METI, Japan, as part of the Regional Research & Development Consortium Project for Development of High Strength Mg Alloys. The authors would like to express their sincere appreciation to Prof. R. Tomoshige of Sojo university for their support in the HRTEM experiments.
PY - 2005/2/25
Y1 - 2005/2/25
N2 - The long-period stacking order (LPSO) structures in rapidly solidified Mg97Zn1Y2 alloy have been studied by conventional and high-resolution transmission electron microscopes (HRTEMs). There are four kinds of stacking sequences in the LPSO structures, i.e., 18R of ABABABCACACABCBCBC, 14H of ACBCBABABABCBC, 10H of ABACBCBCAB and 24R of ABABABABCACACACABCBCBCBC. The 18R structure is dominantly observed in the present study. The rest three are occasionally observed in places. The 10H and 24R structures are recently discovered. The lattice constants of 18R(1 1̄ 1 1̄ 2)3), 14H(2̄ 1 2̄ 1 1̄ 1 1̄ 2 1̄ 2), 10H(1 3̄ 1 1̄ 3 1̄) and 24R(1 1̄ 1 1̄ 1 1̄ 2)3 structures are estimated to be a = 0.320 nm and c = 4.678 nm, a = 0.325 nm and c = 3.694 nm, a = 0.325 nm and c = 2.603 nm, a = 0.322 nm and c = 6.181 nm for the hexagonal structure, respectively.
AB - The long-period stacking order (LPSO) structures in rapidly solidified Mg97Zn1Y2 alloy have been studied by conventional and high-resolution transmission electron microscopes (HRTEMs). There are four kinds of stacking sequences in the LPSO structures, i.e., 18R of ABABABCACACABCBCBC, 14H of ACBCBABABABCBC, 10H of ABACBCBCAB and 24R of ABABABABCACACACABCBCBCBC. The 18R structure is dominantly observed in the present study. The rest three are occasionally observed in places. The 10H and 24R structures are recently discovered. The lattice constants of 18R(1 1̄ 1 1̄ 2)3), 14H(2̄ 1 2̄ 1 1̄ 1 1̄ 2 1̄ 2), 10H(1 3̄ 1 1̄ 3 1̄) and 24R(1 1̄ 1 1̄ 1 1̄ 2)3 structures are estimated to be a = 0.320 nm and c = 4.678 nm, a = 0.325 nm and c = 3.694 nm, a = 0.325 nm and c = 2.603 nm, a = 0.322 nm and c = 6.181 nm for the hexagonal structure, respectively.
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U2 - 10.1016/j.msea.2004.10.040
DO - 10.1016/j.msea.2004.10.040
M3 - Article
AN - SCOPUS:13444278547
VL - 393
SP - 269
EP - 274
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 - 1-2
ER -