کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1638306 | 1516995 | 2012 | 6 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Crystallization microstructure of Mg65Cu25Y10 bulk amorphous alloy
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موضوعات مرتبط
مهندسی و علوم پایه
مهندسی مواد
فلزات و آلیاژها
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چکیده انگلیسی
Mg65Cu25Y10 bulk amorphous alloy specimens prepared by conventional copper mould method were heated at 200 °C for different time and the phase contents as well as microstructure were studied. The XRD results show that the crystallization of Mg65Cu25Y10 bulk amorphous alloy specimen becomes complete as the treating time increases and Mg2Cu, Mg24Y5 and HCP-Mg crystalline phases are found. Snowflake-like morphology is found in different specimens through SEM observation. The EDS patterns show that the composition of the snowflake-like structure is close to that of the as-cast alloy. Laminated structures are observed from the TEM images of the snowflake-like structure. From the electron diffraction patterns, it is seen that the snowflake-like structure is the combination of Mg24Y5 and amorphous matrix. The FCC-Mg phase in the matrix transforms into HCP-Mg during the heat-treating process.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Transactions of Nonferrous Metals Society of China - Volume 22, Issue 4, April 2012, Pages 831-836
Journal: Transactions of Nonferrous Metals Society of China - Volume 22, Issue 4, April 2012, Pages 831-836
نویسندگان
Kang HUANG, Gang CHEN, Yu-tao ZHAO, Guo-lu WANG, Yang SHAO,