کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
5456509 | 1514654 | 2017 | 5 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Oxide dispersion strengthened CoCrFeNiMn high-entropy alloy
دانلود مقاله + سفارش ترجمه
دانلود مقاله ISI انگلیسی
رایگان برای ایرانیان
کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی مواد
دانش مواد (عمومی)
پیش نمایش صفحه اول مقاله
چکیده انگلیسی
The CoCrFeNiMn high entropy alloy and its strengthened version by in-situ formed dispersion of yttria nano-oxides prepared via mechanical alloying were investigated. The grain refinement of the one phase FCC alloy by presence of oxides was determined by microstructural analyses to be 50%. The positive effect of oxide dispersion on the strength properties was found to be between 30% and 70% for room and elevated temperatures, respectively. The resulting creep strain rates for the strengthened alloy were significantly lower, i.e., three orders for 30Â MPa stress level, comparing the initial one, therefore, the pining mechanism was among others very effective.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Materials Science and Engineering: A - Volume 689, 24 March 2017, Pages 252-256
Journal: Materials Science and Engineering: A - Volume 689, 24 March 2017, Pages 252-256
نویسندگان
Hynek Hadraba, Zdenek Chlup, Antonin Dlouhy, Ferdinand Dobes, Pavla Roupcova, Monika Vilemova, Jiri Matejicek,