کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
830054 1470350 2013 5 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Studies on strength and ductility of Cu–Zn alloys by stress relaxation
موضوعات مرتبط
مهندسی و علوم پایه سایر رشته های مهندسی مهندسی (عمومی)
پیش نمایش صفحه اول مقاله
Studies on strength and ductility of Cu–Zn alloys by stress relaxation
چکیده انگلیسی

Stress–relaxation experiments were applied to cold-rolled Cu–10 wt.%Zn, Cu–20 wt.%Zn and Cu–30 wt.%Zn alloys samples with different stacking fault energy (SFE). Relevant mechanical properties were tested by conducting tensile experiments. With a decrease of SFE, strength increased greatly without sacrificing ductility. Meanwhile, we found that a decrease in SFE leads to both a decrease in the variation of physical activation volume and the value of strain rate sensitivity but increases in exhaustion rate of mobile dislocations in copper alloys. This indicates that the deformation process is dominated by dislocation activities. The result provides an explanation for the mechanical behavior of some nanostructured materials which have high strength and not disappointingly low ductility.


► Stress relaxation experiment is employed to explain different properties.
► Both strength and ductility increase with SFE decreasing and the changes of m, etc.
► Comparison is listed to show the difference with the published work.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Materials & Design - Volume 47, May 2013, Pages 295–299
نویسندگان
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