Local Structural Analysis around Solute-Element in Annealed Mg99.2Zn0.2Y0. 6 Alloy using X-ray Fluorescence Holography

被引：2
作者：
Kimura, Koji [1 ]
Egusa, Daisuke [2 ]
Hagihara, Koji [1 ]
Happo, Nohisa [3 ]
Kawamura, Naomi [4 ]
Tajiri, Hiroo [4 ]
Hayashi, Kouichi [1 ,4 ]
Abe, Eiji [2 ]
机构：
[1] Nagoya Inst Technol, Dept Phys Sci & Engn, Nagoya 4668555, Japan
[2] Univ Tokyo, Dept Mat Sci & Engn, 7-3-1, Hongo, Bunkyo ku, Tokyo 1138656, Japan
[3] Hiroshima City Univ, Dept Comp & Network Engn, 3-4-1, Ozuka Higashi, Asaminami ku, Hiroshima 7313194, Japan
[4] Japan Synchrotron Radiat Res Inst JASRI, SPring 8,1-1-1 Kouto, Sayo, Hyogo 6795198, Japan
来源：
MATERIALS TRANSACTIONS | 2023年 / 64卷 / 04期
基金：
日本学术振兴会;
关键词：
X-ray fluorescence holography; Mg alloy; mille-feuille structure; synchrotron radiation; SINGLE-CRYSTAL; MECHANICAL-PROPERTIES; PERIOD; PHASE; ORDER; STRENGTH; ATOMS;
D O I：
10.2320/matertrans.MT-MD2022009
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
X-ray fluorescence holography was applied to dilute Mg99.2Zn0.2Y0.6 alloy annealed at 520 celcius for 5 h to obtain atomic images around Zn atom. In spite of the extremely low concentration of the solute-element, clear hologram patterns were obtained. The reconstructed atomic images revealed that the Zn atom in this annealed Mg99.2Zn0.2Y0.6 alloy mainly occupy the hcp Mg site. This finding is consistent with the transmission electron microscope image, where fcc-type stacking faults are hardly observed. These results are in contrast to the previous report that Zn and Y form short-range-ordered solute clusters at the fcc-type stacking fault in Mg-Zn-Y alloy. The effect of heat treatment on the atomic arrangement of solute-elements in this dilute alloy is discussed in relation to the previously reported mechanical properties.
引用
收藏
页码：750 / 755
页数：6
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