کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1580996 1514849 2009 5 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Microstructures and mechanical properties of commercial purity iron processed by asymmetric rolling
موضوعات مرتبط
مهندسی و علوم پایه مهندسی مواد دانش مواد (عمومی)
پیش نمایش صفحه اول مقاله
Microstructures and mechanical properties of commercial purity iron processed by asymmetric rolling
چکیده انگلیسی

For the purpose of grain refinement, commercial purity iron processed by asymmetric rolling (ASR) has been studied by optical microscopy, electron backscatter diffraction (EBSD) and transmission electron microscopy (TEM). Equiaxed ultra fined grains with a grain size of about 0.9 μm and a large fraction of high angle grain boundaries were obtained. The formation of the equiaxed grains is suggested to result from the additional shear strain which is observed by the shape change of a Cu band inserted into the rolled materials. The rolled iron exhibits high yield strength with a low work hardening ability and high microhardness, which are attributed to the high dislocation density and the large fraction of the high angle boundaries.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Materials Science and Engineering: A - Volume 509, Issues 1–2, 25 May 2009, Pages 76–80
نویسندگان
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