کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1479881 | 991431 | 2016 | 7 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Evolution of microstructure and hardness in an AZ80 magnesium alloy processed by high-pressure torsion
دانلود مقاله + سفارش ترجمه
دانلود مقاله ISI انگلیسی
رایگان برای ایرانیان
کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی مواد
سرامیک و کامپوزیت
پیش نمایش صفحه اول مقاله
چکیده انگلیسی
An AZ80 magnesium alloy with an initial grain size of ∼25 μm and a hardness of Hv ≈ 63 was processed by high-pressure torsion (HPT) at room temperature for up to 10 turns under an imposed pressure of 6.0 GPa. After processing, the specimens were examined by optical microscopy and transmission electron microscopy and measurements were taken of the Vickers microhardness along diameters of the HPT discs. The results show that the grains are refined to ∼200 nm after 5 and 10 turns of HPT and the hardness increases to Hv ≈ 120 at an equivalent strain of ∼30. There is a saturation condition and no further hardening at additional equivalent strains up to >200.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Materials Research and Technology - Volume 5, Issue 2, April–June 2016, Pages 152–158
Journal: Journal of Materials Research and Technology - Volume 5, Issue 2, April–June 2016, Pages 152–158
نویسندگان
Saad A. Alsubaie, Piotr Bazarnik, Malgorzata Lewandowska, Yi Huang, Terence G. Langdon,