کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1574317 | 1514709 | 2015 | 7 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Effect of temperature on microstructural stabilization and mechanical properties in the dynamic testing of nanocrystalline pure Ti
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی مواد
دانش مواد (عمومی)
پیش نمایش صفحه اول مقاله
چکیده انگلیسی
Commercial purity (CP) Ti was processed by a two-step procedure of ECAP and drawing to give a nanocrystalline (NC) grain size of ~90Â nm. Samples were tested in compression at a strain rate of 10Â sâ1 over the temperature range of 298â673Â K. The results show the high stored energy and high interface energy promote the process of static recrystallization (SRX) when the NC Ti is heated above 573Â K. Migration dynamic recrystallization (m-DRX) operates during compressive deformation at temperatures of 298â573Â K giving a homogeneous microstructure. The compressive yield strength and peak stress at 298Â K were measured as 1230 and 1330Â MPa, respectively. When the test temperature is increased from 298 to 673Â K, the yield strength and peak stress decrease and the work hardening rate and dynamic softening rate are also reduced.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Materials Science and Engineering: A - Volume 634, 14 May 2015, Pages 64-70
Journal: Materials Science and Engineering: A - Volume 634, 14 May 2015, Pages 64-70
نویسندگان
Shixiong Zhang, Ying Chun Wang, Alexander P. Zhilyaev, Dmitry V. Gunderov, Shukui Li, Georgy I. Raab, Elena Korznikova, Terence G. Langdon,