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Stacking faults and growth twins in long-period stacking ordered structures in a near-equilibrium Mg97Zn1Y2 alloy
Jin, Q. Q.; Shao, X. H.; Yang, L. X.; Zhou, Y. T.; Zhang, B.; Zheng, S. J.; Ma, X. L.
2020-07-01
Source PublicationMATERIALS CHARACTERIZATION
Volume165
AbstractWe investigated the structure, symmetry, and distribution of stacking faults and growth twins in 18R and 14H long-period stacking ordered (LPSO) structures in a near-equilibrium Mg97Zn1Y2 (at.%) alloy by transmission electron microscopy. The stacking faults and growth twins here result from the insertion of the n-Mg components in the LPSO structure, and some of them possess inversion centers or mirror symmetry. The stacking faults and growth twins in 18R LPSO depend on whether the sum of inserted Mg layers of all n-Mg components in defects is even number or odd number, respectively, while only stacking faults appear in 14H LPSO. The gliding of Shockley partial dislocation pairs induces the transformation of stacking faults and motion of twin boundary. Statistically, the periodical arrangement of stacking faults in 18R or 14H LPSO structures results in the formation of superstructures, such as 62L, 86L, 152L, and 235L.
DOI10.1016/j.matchar.2020.110395
WOS IDWOS:000541742100032
Citation statistics
Cited Times:1[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.imr.ac.cn/handle/321006/82732
Collection中国科学院金属研究所
Recommended Citation
GB/T 7714
Jin, Q. Q.,Shao, X. H.,Yang, L. X.,et al. Stacking faults and growth twins in long-period stacking ordered structures in a near-equilibrium Mg97Zn1Y2 alloy[J]. MATERIALS CHARACTERIZATION,2020,165.
APA Jin, Q. Q..,Shao, X. H..,Yang, L. X..,Zhou, Y. T..,Zhang, B..,...&Ma, X. L..(2020).Stacking faults and growth twins in long-period stacking ordered structures in a near-equilibrium Mg97Zn1Y2 alloy.MATERIALS CHARACTERIZATION,165.
MLA Jin, Q. Q.,et al."Stacking faults and growth twins in long-period stacking ordered structures in a near-equilibrium Mg97Zn1Y2 alloy".MATERIALS CHARACTERIZATION 165(2020).
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