کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1635549 1516943 2016 9 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Effect of processing route on grain refinement in pure copper processed by equal channel angular extrusion
ترجمه فارسی عنوان
اثر مسیر پردازش در پالایش دانه در مس خالص پردازش شده توسط اکستروژن زاویه کانال یکسانی
کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه مهندسی مواد فلزات و آلیاژها
چکیده انگلیسی

An experimental study of the microstructures in pure copper billets processed by 8 passes of equal channel angular extrusion (ECAE) via an extended range of processing routes with a 90° die is carried out. Each processing route is defined according to the inter-pass billet rotation angle (χ), which varies from 0° to 180°. According to the generation of high-angle boundaries and reduction of grain size by electron backscatter diffraction (EBSD) measurements, the grain refinement is found to be most efficient for route with χ=90° and least efficient with χ=180°, among the seven routes studied. This trend is supported by supplementary transmission electron microscopy (TEM) measurements. Comparison of the EBSD and TEM data reveals the importance of considering the non-equiaxity of grain structures in quantitative assessment of microstructural differences in ECAE-processed materials.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Transactions of Nonferrous Metals Society of China - Volume 26, Issue 7, July 2016, Pages 1736–1744
نویسندگان
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