کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1585377 1514915 2006 9 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Micromechanical modeling of tungsten-based bulk metallic glass matrix composites
موضوعات مرتبط
مهندسی و علوم پایه مهندسی مواد دانش مواد (عمومی)
پیش نمایش صفحه اول مقاله
Micromechanical modeling of tungsten-based bulk metallic glass matrix composites
چکیده انگلیسی

Micromechanics models are developed for tungsten (W)-based bulk metallic glass (BMG) matrix composites employing the Voronoi tessellation technique and the finite element (FE) method. The simulation results indicate that the computed elastic moduli are close to those measured in the experiments. The predicted stress–strain curves agree well with their experimentally obtained counterparts in the early stage of the plastic deformation. An increase in the W volume fraction leads to a decrease in the yield stress and an increase in the Young's modulus of the composite. In addition, contours of equivalent plastic strain for increasing applied strains provide an explanation why shear bands were observed in the glassy phase, along the W/BMG interface, and in the W phase of failed W/BMG composite specimens.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Materials Science and Engineering: A - Volume 429, Issues 1–2, 15 August 2006, Pages 115–123
نویسندگان
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