کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1575225 | 1514741 | 2014 | 8 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Effect of minor addition of vanadium on mechanical properties and microstructures of as-extruded near eutectic Al-Si-Mg alloy
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی مواد
دانش مواد (عمومی)
پیش نمایش صفحه اول مقاله

چکیده انگلیسی
Mechanical properties of near eutectic Al-12.5Â wt%Si-0.6Â wt%Mg alloys with and without addition of V were tested. Results show that addition of 0.1Â wt% V only has a minor influence on the tensile properties of near eutectic Al-Si-Mg alloy in as-cast and as-homogenized conditions. However, it can significantly improve the tensile properties in as-extruded condition. The YS is enhanced nearly 50% and the elongation can reach 14%. Three factors that may contribute to the enhancement of YS were analyzed by EBSD, XRD and TEM investigation, i.e. ÎÏgb (the strengthening from (sub-) grain boundaries), M (Taylor factor) and Ïtot (critical resolved shear stress). Results show that the higher Ïtot in the alloy with V addition is the main contributor to the higher YS. According to the TEM observation and EDX analysis, the fine precipitates contributed to the higher Ïtot in 4# alloy are quaternary AlFeVSi phases.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Materials Science and Engineering: A - Volume 602, 25 April 2014, Pages 41-48
Journal: Materials Science and Engineering: A - Volume 602, 25 April 2014, Pages 41-48
نویسندگان
Yuna Wu, Hengcheng Liao, Kexin Zhou,