期刊
PHILOSOPHICAL MAGAZINE
卷 93, 期 15, 页码 1859-1872出版社
TAYLOR & FRANCIS LTD
DOI: 10.1080/14786435.2012.762470
关键词
metallic glasses; friction mechanism; flow characteristics; viscosity theory; finite-element simulations
类别
资金
- National Nature Science Foundation of China [51005081]
The interfacial friction behaviour of Zr35Ti30Be26.75Cu8.25 metallic glass during micro-extrusion was investigated at various strain rates and temperatures in the supercooled liquid region. A friction mechanism map that distributes adhesion regime, furrow regime and mechanical engagement regime was constructed. These regimes respectively correspond to Newtonian flow, non-Newtonian flow and inhomogeneous flow by comparing with the typical deformation map. The correlation between flow characteristics and interfacial friction behaviour is well analysed by combining the viscosity theory with the finite-element simulations.
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