کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
815116 906299 2012 5 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Effect of Size and Aspect Ratio on the Mechanical Properties of ZrAlNiCuNb Metallic Glass
موضوعات مرتبط
مهندسی و علوم پایه سایر رشته های مهندسی مکانیک مواد
پیش نمایش صفحه اول مقاله
Effect of Size and Aspect Ratio on the Mechanical Properties of ZrAlNiCuNb Metallic Glass
چکیده انگلیسی

The effects of size and aspect ratio (height/diameter ratio) of the specimen on the mechanical properties of a Zr56Al10.9Ni4.6Cu27.8Nb0.7 metallic glass have been investigated by uniaxial compression tests and scanning electron microscope (SEM) observations. The results show that the metallic glass with smaller size and lower aspect ratio shows an enhanced plasticity due to larger amount of free volume formed during casting. The shear-band instability index (SBI) is introduced to explain the effects of the size and aspect ratio on the plasticity of the metallic glass. Stable propagation of shear bands can be achieved for the specimen with small size and low aspect ratio, resulting in a size and aspect ratio dependance of plasticity.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Rare Metal Materials and Engineering - Volume 41, Issue 5, May 2012, Pages 762-766