Deformation Mechanisms and Fracture of Ni-Based Metallic Glasses

• Main Authors: Lesz S., Griner S., Nowosielski R.
• Format: Article
• Language: English
• Published: Polish Academy of Sciences 2016-06-01
• Series: Archives of Metallurgy and Materials
• Subjects: metals; transmission electron microscopy; scanning electron microscopy; fracture; shear bands
• Online Access: http://www.degruyter.com/view/j/amm.2016.61.issue-2/amm-2016-0133/amm-2016-0133.xml?format=INT

The cracking of materials and fracture surface is of great practical and academic importance. Over the last few years the development of the fractography of crystalline alloys resulted in a useful tool for the prediction or failure analysis. Many attempts have been made to observe cracks using optical microscopy, X-ray topography and transmission electron microscopy (TEM). Of these techniques, the resolution of optical microscopy and X-ray topography is too poor. By contrast, the resolution of TEM is high enough for detailed information to be obtained. However, in order to apply TEM observations, a thin foil specimen must be prepared, and it is usually extremely difficult to prepare such a specimen from a pre-selected region containing a crack.