کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1580345 | 1001241 | 2010 | 6 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Shape memory behavior of a Ni3Ta alloy pre-deformed in compression
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موضوعات مرتبط
مهندسی و علوم پایه
مهندسی مواد
دانش مواد (عمومی)
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چکیده انگلیسی
Shape memory behavior of a Ni3Ta shape memory alloy pre-deformed in compression up to 1% was studied by dilatometry. Dilatation characteristics were measured for non-deformed as well as pre-deformed polycrystalline and single crystal alloys from the room temperature to 950 °C. Shape recovery processes in the polycrystalline sample occur at room temperature where the martensite exists and then continue during the phase transformation from M â A. However, the major part of the compression pre-deformation is relaxed at high temperatures in the austenite region. This shape recovery process is associated with the elongation of the sample. Only small changes in length were found for the single crystal sample after pre-deformation and a single thermal cycle. Compression deformation increases the TWSME in the polycrystalline alloy and decreases the TWSME in the single crystal alloy.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Materials Science and Engineering: A - Volume 527, Issue 12, 15 May 2010, Pages 2900-2905
Journal: Materials Science and Engineering: A - Volume 527, Issue 12, 15 May 2010, Pages 2900-2905
نویسندگان
A. Rudajevová, J. PospÃÅ¡il,