In-situ Tension of Dendrite-Reinforced Zr-based Metallic-GlassMatrix Composites
来源期刊:Acta Metallurgica Sinica2014年第4期
论文作者:Huijun Yang Junwei Qiao Song Wang Yong Zhang
文章页码:621 - 626
摘 要:The evolution of shear bands in the glassy matrix composites was observed and analyzed during in-situ tension.Based on the simple calculation,the temperature rise within the shear bands is sufficient to cause the formation of viscous shearing layer,resulting in the early failure.Zr-based metallic-glass-matrix composites(labeled as DH1 and DH2) exhibit improved tensile ductility rather than brittle failure,since the existence of secondary ductile dendrites promotes the impedance of prompt propagation of shear bands,evidenced by the multiplication of shear bands.
Huijun Yang1,2,Junwei Qiao2,Song Wang3,Yong Zhang3
1. Research Institute of Surface Engineering,Taiyuan University of Technology2. College of Materials Science and Engineering,Taiyuan University of Technology3. State Key Laboratory of Advanced Metals and Materials,University of Science and Technology Beijing
摘 要:The evolution of shear bands in the glassy matrix composites was observed and analyzed during in-situ tension.Based on the simple calculation,the temperature rise within the shear bands is sufficient to cause the formation of viscous shearing layer,resulting in the early failure.Zr-based metallic-glass-matrix composites(labeled as DH1 and DH2) exhibit improved tensile ductility rather than brittle failure,since the existence of secondary ductile dendrites promotes the impedance of prompt propagation of shear bands,evidenced by the multiplication of shear bands.
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