کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1600985 1005182 2010 5 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Ordering transitions in quenched Au7Cu5Al4 alloy and effect of order on martensitic transformation
موضوعات مرتبط
مهندسی و علوم پایه مهندسی مواد فلزات و آلیاژها
پیش نمایش صفحه اول مقاله
Ordering transitions in quenched Au7Cu5Al4 alloy and effect of order on martensitic transformation
چکیده انگلیسی

A metastable phase of DO3 ordering was observed between 171.6 °C and 281.3 °C in quenched Au7Cu5Al4 alloy followed by heating at 2 °C/min. With further increasing of temperature, B2 → A2 order–disorder transition happened above 495.3 °C and finished at 616.5 °C. The evolution of metastable DO3 ordering at 200 °C was also studied. Martensitic transformations of corresponding ordering structures were investigated by DSC. It is found that both the DO3 and B2 ordering suppressed the martensitic transformation start (MS) temperature dramatically, contrary to the L21 ordering which favors martensitic transformation. The effect of order on martensitic transformation in quenched Au7Cu5Al4 alloy was also discussed.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Intermetallics - Volume 18, Issue 5, May 2010, Pages 846–850
نویسندگان
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