کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
7969206 | 1514347 | 2018 | 5 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Investigation of structure, morphology and orientation of precipitates in MgâBi alloy
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موضوعات مرتبط
مهندسی و علوم پایه
مهندسی مواد
دانش مواد (عمومی)
پیش نمایش صفحه اول مقاله
چکیده انگلیسی
In Mgâ0.8â¯at.% Bi binary alloys,the structure, the morphology and the orientation of precipitates were characterized by high-resolution transmission electron microscopy (HRTEM) and high-angle annular dark detector field scanning transmission electron microscopy (HAADFâSTEM) techniques. The main precipitate is the α-Mg3Bi2 phase with hexagonal structure (P3¯m1). The morphology of α-Mg3Bi2 precipitate is classified into three types, rod-shaped, cuboid-shaped and polyhedral, which are related closely with orientation relationships (ORs) between α-Mg3Bi2 precipitate and αMg matrix. For the first two types of morphologies, precipitate and αMg matrix can maintain the following ORs: 112¯0Mg3Bi2//0001Mg and 11¯00Mg3Bi2//11¯00Mg. In contrast, another set of ORs between polyhedral α-Mg3Bi2 and αMg matrix can be determined as: 112¯0Mg3Bi2//112¯0Mg and 0003Mg3Bi2//11¯01Mg. The morphology of α-Mg3Bi2 precipitates is discussed particularly based on the interfacial misfit mechanism.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Materials Characterization - Volume 140, June 2018, Pages 129-133
Journal: Materials Characterization - Volume 140, June 2018, Pages 129-133
نویسندگان
Y.H. Sun, B.Z. Sun,