کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1562345 999585 2011 4 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Microhardness profile prediction of a graded steel by strain gradient plasticity theory
موضوعات مرتبط
مهندسی و علوم پایه سایر رشته های مهندسی مکانیک محاسباتی
پیش نمایش صفحه اول مقاله
Microhardness profile prediction of a graded steel by strain gradient plasticity theory
چکیده انگلیسی

In the present study, the Vickers microhardness profile of functionally graded steel austenitic steel produced by electroslag remelting process has been investigated. To produce functionally graded steels, two different slices from plain carbon steel and austenitic stainless steels were spot welded and used as electroslag remelting electrode. Functionally graded steel containing graded layers of austenite may be fabricated via diffusion of alloying elements during remelting stage. Vickers microhardness profile of the specimen has been obtained experimentally and modeled with mechanism-based strain gradient plasticity theory. In this regard, the density of the statistically stored dislocations and that of geometrically necessary dislocations was related to the Vickers microhardness profile of each layer. The experimental results are in good agreement with those obtained from the theory.

Research highlightsProducing FGSs by electroslag remelting. Strain gradient plasticity theory for hardness prediction. Profile of statistically stored and geometrically necessary dislocations.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Computational Materials Science - Volume 50, Issue 5, March 2011, Pages 1781–1784
نویسندگان
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