کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1609727 1516264 2015 8 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Grain structure evolution during cryogenic rolling of alpha brass
ترجمه فارسی عنوان
تکامل ساختار دانه در زمان غلتیدن آهو برنج
موضوعات مرتبط
مهندسی و علوم پایه مهندسی مواد فلزات و آلیاژها
چکیده انگلیسی
High-resolution electron backscatter diffraction (EBSD) was used to study grain structure development during cryogenic rolling of Cu-29.5Zn brass. Microstructure evolution was found to be broadly similar to that occurring during rolling at room temperature. Specifically, favorably-oriented grains (Copper {1 1 2}〈1 1 1〉 and S {1 2 3}〈6 3 4〉) experienced profuse deformation twinning followed by extensive shear banding. This eventually produced an ultrafine structure with a mean grain size of ∼0.2 μm. On the other hand, grains with crystallographic orientations close to Brass {1 1 0}〈1 1 2〉 and Goss {1 1 0}〈1 0 0〉 were found to be stable against twinning/shear banding and thus showed no significant grain refinement. As a result, the final structure developed in heavily-rolled material was distinctly inhomogeneous consisting of mm-scale remnants of original grains with poorly developed substructure and ultra-fine grain domains.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Alloys and Compounds - Volume 629, 25 April 2015, Pages 140-147
نویسندگان
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