کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1583564 1514893 2007 10 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Thermal stability of ECAP processed pure copper
موضوعات مرتبط
مهندسی و علوم پایه مهندسی مواد دانش مواد (عمومی)
پیش نمایش صفحه اول مقاله
Thermal stability of ECAP processed pure copper
چکیده انگلیسی
Microstructure and texture evolution of pure copper (99.95%) after equal-channel angular pressing (ECAP) with route Bc up to 12 passes and subsequent heat treatment were investigated. After deformation the samples were annealed at different temperatures. The deformed and annealed states were characterized by X-ray pole figures, electron back scatter diffraction (EBSD), TEM and microhardness tests. It was shown that the observed texture and microstructure changes during subsequent annealing have to be associated with discontinuous recrystallization. The study revealed a very low thermal stability of this ECAP processed pure copper. The observed decrease of the apparent activation energy for recrystallization is most likely due to improved nucleation conditions of ECAP deformed material.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Materials Science and Engineering: A - Volumes 460–461, 15 July 2007, Pages 204-213
نویسندگان
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