کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
8000678 | 1516274 | 2015 | 7 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Correlating r-value and through thickness texture in Al-Mg-Si alloy sheets
دانلود مقاله + سفارش ترجمه
دانلود مقاله ISI انگلیسی
رایگان برای ایرانیان
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی مواد
فلزات و آلیاژها
پیش نمایش صفحه اول مقاله
چکیده انگلیسی
The r-value or Lankford constant is commonly used to evaluate the plastic anisotropy of rolled sheet. Computational methods based on crystal plasticity models have been developed to calculate the r-value profile from crystallographic texture. In aluminium alloys mid-thickness textures, either measured or calculated, are usually used as input and they are assumed to represent the entire through thickness texture. This paper aims to verify the validity of this assumption using two commercially produced cold rolled and annealed alloys, EN AW-6016 and EN AW-6061, having the typical cube dominated texture. The r-value profiles were calculated with both the full constraints Taylor and the visco-plastic self-consistent models, using either the measured mid-thickness or through thickness texture as input. Comparison with the experimentally measured r-value profile shows that due to the presence of a subtle through thickness gradient of the Goss orientation, the use of the precise thickness averaged texture is required for an accurate estimation of the r-value profile in cold rolled and annealed 6xxx aluminium alloys.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Alloys and Compounds - Volume 619, 15 January 2015, Pages 585-591
Journal: Journal of Alloys and Compounds - Volume 619, 15 January 2015, Pages 585-591
نویسندگان
M. Ghosh, A. Miroux, L.A.I. Kestens,