Microstructural Evolution of Long-Period Stacking Ordered Structures in Mg97Y2Zn1 Alloys Examined by In-Situ Small-Angle X-ray Scattering

被引：12

作者：

Okuda, Hiroshi ^{[1
]}

Horiuchi, Toshiki ^{[1
]}

Hifumi, Shoki ^{[1
]}

Yamasaki, Michiaki ^{[2
]}

Kawamura, Yoshihito ^{[2
]}

Kimura, Shigeru ^{[3
]}

机构：

[1] Kyoto Univ, Grad Sch Engn, Dept Mat Sci & Engn, Kyoto 6068501, Japan

[2] Kumamoto Univ, Dept Mat Sci & Engn, Kurokami, Kumamoto 8608555, Japan

[3] Japan Synchrotron Radiat Res Inst JASRI, Sayo 6795198, Japan

来源：

METALLURGICAL AND MATERIALS TRANSACTIONS A-PHYSICAL METALLURGY AND MATERIALS SCIENCE | 2014年 / 45A卷 / 11期

关键词：

Y-ZN ALLOYS; MG85Y9ZN6; ALLOYS; PHASE; STRENGTH; MICROSCOPY; SYSTEM; 18R;

D O I：

10.1007/s11661-014-2410-2

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Development and stability of synchronized long-period stacking ordered (LPSO) structures in Mg97Y2Zn1 alloy were examined by synchrotron-radiation small- and wide-angle scattering/diffraction measurements. The main LPSO structure in the as-cast polycrystalline ingot was 18R, and 14H structure grew at the cost of 18R during annealing. The in-plane peak position increased for longer annealing times in isothermal annealing and also at higher temperatures during in situ heating measurements, and it was interpreted by a composition of peaks corresponding to several sites. The experimental instability temperatures obtained by in situ measurements for in-plane ordering, 18R, and 14H structures agreed within experimental resolution.

引用

页码：4780 / 4785

页数：6

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