کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
10621127 | 988775 | 2005 | 12 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Strain hardening behavior of aluminum alloyed Hadfield steel single crystals
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی مواد
سرامیک و کامپوزیت
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: Strain hardening behavior of aluminum alloyed Hadfield steel single crystals Strain hardening behavior of aluminum alloyed Hadfield steel single crystals](/preview/png/10621127.png)
چکیده انگلیسی
Very high strain hardening coefficients (=G/23) are observed for aluminum-alloyed face-centered cubic Hadfield steel single crystals under tensile loading. Alloying with aluminum suppressed deformation twinning in two of the three crystallographic orientations studied, and transmission electron microscopy results revealed the existence of dense dislocation walls (sheets) along crystallographic directions that form barriers to slip deformation. A visco-plastic self-consistent algorithm was modified to account for the interaction between the active slip systems and the high density dislocation walls, producing close prediction of the experimental strain hardening response. The model predicted the added hardening in single crystals deformed along [1¯11], [0 0 1] compared to the [1¯23] orientation, the increase in volume fraction of the dislocation walls with increased deformation and the role of twinning in the [1 2 3] orientation.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Acta Materialia - Volume 53, Issue 6, April 2005, Pages 1831-1842
Journal: Acta Materialia - Volume 53, Issue 6, April 2005, Pages 1831-1842
نویسندگان
D. Canadinc, H. Sehitoglu, H.J. Maier, Y.I. Chumlyakov,