کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1573802 | 1514691 | 2016 | 7 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
A physically based yield criterion II. Incorporation of Hall Petch effect and resistance due to thermally activated dislocation glide
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی مواد
دانش مواد (عمومی)
پیش نمایش صفحه اول مقاله
چکیده انگلیسی
The anelastic model developed in part I of this paper [1] is extended to incorporate the Hall-Petch effect and the thermally activated pre yield phenomena that were revealed in the stress cycling experiments The yield criterion developed in [1] is tested by application to Hall-Petch experiments and measurements of the yield stress as a function of strain rate and temperature. The results of the strain rate/temperature experiments support the conclusion that reversible dislocation glide occurs before yield and massive dislocation multiplication. The model is substantiated by analysis of parameters pertaining to the initial dislocation structure viz. the average initial dislocation segment length and density computed from experimental data by application of the model equations.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Materials Science and Engineering: A - Volume 652, 15 January 2016, Pages 7-13
Journal: Materials Science and Engineering: A - Volume 652, 15 January 2016, Pages 7-13
نویسندگان
Peter van Liempt, Cornelis Bos, Jilt Sietsma,