材料科学
无定形固体
Crystal(编程语言)
非晶态金属
分子动力学
化学物理
热扩散率
扩散
相(物质)
结晶学
异质结
合金
热力学
复合材料
计算化学
物理
光电子学
有机化学
化学
计算机科学
程序设计语言
作者
Yiying Zhu,Guanglan Liao,Tielin Shi,Zirong Tang,Mo Li
标识
DOI:10.1016/j.actamat.2016.04.032
摘要
Interdiffusion cross the interface between metallic glass CuZr and crystal Al is investigated using molecular dynamics simulation. We show that the interdiffusivity is highly asymmetric in the adjacent amorphous and crystal phases and strongly concentration dependent. Anomalous interdiffusion is observed in the interdiffusion zone grown from the initial interface. The underlying mechanisms of the mass transport phenomenon in the heterogeneous media involve interplay of simultaneous structural transformation from crystal to amorphous and then to liquid phase with subtle changes in local atomic bonding and packing and the difference in the intrinsic diffusivity of the alloy elements. The complexity is a natural consequence of the heterostructure evolving toward equilibrium. The significance and application of the interdiffusion and resulting bonding for metallic glass and crystals are discussed.
科研通智能强力驱动
Strongly Powered by AbleSci AI