کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1498163 1510897 2015 4 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Thermally activated deformation processes in body-centered cubic Cr – How microstructure influences strain-rate sensitivity
ترجمه فارسی عنوان
فرایندهای تغییر شکل پذیر حرارتی در کروم مکعبی متمرکز بر بدن چگونه ریزساختار بر حساسیت نرخ کرنش اثر می گذارد
موضوعات مرتبط
مهندسی و علوم پایه مهندسی مواد سرامیک و کامپوزیت
چکیده انگلیسی

The microstructure dependent deformation behavior of chromium, especially in terms of strain-rate sensitivity (SRS), was studied by means of improved nanoindentation methods as a function of temperature. Cr was investigated in the single crystalline (sx) and ultrafine-grained (ufg) condition. With increasing temperature a decreasing SRS was determined for sx-Cr, while for ufg-Cr a significant increase upon overcoming the critical temperature Tc was measured. This is attributed to the increased importance of dislocation–grain boundary interactions, and a change in the dominating deformation behavior.

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ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Scripta Materialia - Volume 106, September 2015, Pages 42–45
نویسندگان
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