Dislocation characteristics of shear bands in metallic glasses

详细信息    查看全文

• 作者：Alexei Vinogradov^a ; ^{alexei.vinogradov@ntnu.no} ; Mikhail Seleznev^b ; Igor S. Yasnikov^b
• 关键词：Metallic glasses ; Shear bands ; Digital image correlation ; Dislocations
• 刊名：Scripta Materialia
• 出版年：2017
• 出版时间：15 March 2017
• 年：2017
• 卷：130
• 期：Complete
• 页码：138-142
• 全文大小：850 K
• 卷排序：130

文摘

Using a digital image correlation technique, we measured the spatial displacement distribution around the shear band tip terminated in a deformed bulk metallic glass. The excellent agreement is found between the experimentally observed and theoretically predicted displacement fields for dislocations, which provides a direct evidence for the dislocation-like behaviour of the shear bands in metallic glasses.