کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1579342 1514827 2010 5 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Deformation-induced grain refinement in body-centered cubic Co–Fe alloys upon room temperature compression
موضوعات مرتبط
مهندسی و علوم پایه مهندسی مواد دانش مواد (عمومی)
پیش نمایش صفحه اول مقاله
Deformation-induced grain refinement in body-centered cubic Co–Fe alloys upon room temperature compression
چکیده انگلیسی

Pronounced grain refinement to ultrafine or nanoscale size in initially coarse-grained Co–25Fe and Co–35Fe alloys has been achieved upon conventional compression at room temperature. Both Co–Fe alloys exhibit a large plasticity of more than 140% without fracture at room temperature, which is related to a multiscale-grained microstructure resulting from deformation-induced grain refinement. The grains refine with increasing deformation during compression. The microstructure features indicate that the possible mechanism for the strain-induced grain refinement under conventional compression is a consequence of the propagation and coalescence of dislocation cell structures with strain accumulation.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Materials Science and Engineering: A - Volume 527, Issues 21–22, 20 August 2010, Pages 5796–5800
نویسندگان
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