کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1449256 988697 2007 8 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Formation of 14H long period stacking ordered structure and profuse stacking faults in Mg–Zn–Gd alloys during isothermal aging at high temperature
موضوعات مرتبط
مهندسی و علوم پایه مهندسی مواد سرامیک و کامپوزیت
پیش نمایش صفحه اول مقاله
Formation of 14H long period stacking ordered structure and profuse stacking faults in Mg–Zn–Gd alloys during isothermal aging at high temperature
چکیده انگلیسی

This paper proposes a time–temperature-transformation diagram of an Mg–Zn–Gd alloy. An Mg97Zn1Gd2 (at.%) alloy shows different precipitation sequences at low, medium and high temperatures. Low-temperature aging at <523 K brings about coherent β′-phase precipitation to a α-Mg solid solution, resulting in increase in strength of the alloys. However, aging at medium and high temperatures >623 K led to strengthening of the Mg–Zn–Gd alloy, owing to the formation of profuse stacking faults and 14H long period stacking ordered structure from the supersaturated α-Mg matrix, respectively.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Acta Materialia - Volume 55, Issue 20, December 2007, Pages 6798–6805
نویسندگان
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