کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1601237 | 1005189 | 2010 | 7 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Plastic deformation properties of the complex metallic alloy phase μ-Al-Mn
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کلمات کلیدی
A. Aluminides, miscellaneous - A. آلومینیدها، متفرقهB. Yield stress - B. تنش تولیدB. Mechanical properties at high temperatures - B. خواص مکانیکی در دماهای بالاD. Defects: dislocation geometry and arrangement - D. نقص: هندسه جابجایی و ترتیبF. Electron microscopy, transmission - F. میکروسکوپ الکترونی، انتقال
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی مواد
فلزات و آلیاژها
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: Plastic deformation properties of the complex metallic alloy phase μ-Al-Mn Plastic deformation properties of the complex metallic alloy phase μ-Al-Mn](/preview/png/1601237.png)
چکیده انگلیسی
The macroscopic plastic deformation behaviour of high-quality single crystalline samples of the hexagonal complex metallic alloy μ-Al-Mn was investigated. We have performed uniaxial deformation experiments at a constant strain rate of 10â5 sâ1 at temperatures between 700 and 875 °C and with a compression direction parallel to the c-axis of the crystal structure. The stress-strain curves show a pronounced yield-drop effect followed by a steady-state flow-stress regime. Stress-relaxation tests and temperature changes were performed in order to determine the thermodynamic activation parameters of the deformation process. First microstructural investigations of deformed samples were carried out by means of transmission electron microscopy. In the geometry applied, deformation takes place by two systems of dislocations, both moving by pure climb, which interact by an exchange of vacancies.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Intermetallics - Volume 18, Issue 9, September 2010, Pages 1737-1743
Journal: Intermetallics - Volume 18, Issue 9, September 2010, Pages 1737-1743
نویسندگان
Stefan Roitsch, Marc Heggen, Michael Feuerbacher,