کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
7210333 | 1469206 | 2017 | 6 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Critical Conditions of Dynamic Recrystallization for B4Cp/6061Al Composite
دانلود مقاله + سفارش ترجمه
دانلود مقاله ISI انگلیسی
رایگان برای ایرانیان
کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
سایر رشته های مهندسی
مکانیک مواد
پیش نمایش صفحه اول مقاله
چکیده انگلیسی
Flow behavior and dynamic recrystallization (DRX) critical conditions of 25vol% B4Cp/6061Al composite were investigated by isothermal compression tests at temperatures ranging from 350 to 500 °C with strain rates of 0.001 to 1 sâ1. The stress-strain curves show that DRX is the main softening mechanism of the composite, and an Arrhenius-type equation is developed using peak stress. Based on the strain hardening rate curves (θ-Ï), the critical strain (Éc) and critical stress (Ïc) are identified to express the initiation of DRX. The results indicate that there is a liner relationship between Ïc and Ïp:Ïc=0.8374Ïpâ0.33708. The Zener-Hollomon parameter was also introduced to describe the effect of deformation conditions on critical conditions: Éc=2.39Ã10â4Z0.11022. In addition, the steady-state strains (Éss) were determined by the θ-É curves, and then the DRX diagram was established.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Rare Metal Materials and Engineering - Volume 46, Issue 7, July 2017, Pages 1815-1820
Journal: Rare Metal Materials and Engineering - Volume 46, Issue 7, July 2017, Pages 1815-1820
نویسندگان
Liu Shengpu, Li Defu, Guo Shengli,