کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1448104 988664 2009 11 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Microstructure dependence of a Cu–38Zn alloy on processing conditions of constrained groove pressing
موضوعات مرتبط
مهندسی و علوم پایه مهندسی مواد سرامیک و کامپوزیت
پیش نمایش صفحه اول مقاله
Microstructure dependence of a Cu–38Zn alloy on processing conditions of constrained groove pressing
چکیده انگلیسی

Grain reduction and the rate of grain refinement as a function of the processing conditions of constrained groove pressing (CGP) for a Cu–38Zn alloy is investigated. It is found that during the early stage of CGP more effective grain refinement can be achieved using the pressing die with narrower groove widths. Similarly, during this stage the cross-orientation pressing procedure results in finer grains than the single-orientation pressing procedure even though both pressings have the same plastic strain. However, the grain sizes from different pressing conditions merge at large plastic strains. These phenomena have been interpreted based on the complexity of the deformation field and the change of the dislocation generation rate over multiple pressing cycles. The result of this study demonstrates that the rate of grain refinement is affected by the complexity of the deformation field.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Acta Materialia - Volume 57, Issue 18, October 2009, Pages 5543–5553
نویسندگان
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