کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1579353 | 1514827 | 2010 | 6 صفحه PDF | دانلود رایگان |
The structure, thermal stability and tensile properties of (Cu0.5Zr0.5)100−xAlx (x = 5, 6, 8) bulk metallic glasses have been investigated. A good correlation between glass transition and Young's modulus was observed. Moreover, the (Cu0.5Zr0.5)100−xAlx (x = 5, 6, 8) bulk metallic glasses investigated in this work show a unique deformation behaviour in tension: next to a high fracture strength the specimens exhibit a detectable ductility before catastrophic failure. Deformation-induced nanocrystallization and formation of twins in the nanocrystals are believed to play a key role in enhancing the mechanical properties. Scanning electron microscope observations reveal a combination of vein-like patterns and cores with radiating veins on the tensile fracture surface.
Journal: Materials Science and Engineering: A - Volume 527, Issues 21–22, 20 August 2010, Pages 5867–5872