Temperature-induced structural evolution in liquid Sn85Zn15 eutectic alloy. (15th April 2018)

• Record Type: Journal Article
• Authors: Chen, X.; Yu, Q.; Su, Y.; Wang, X.D.; Cao, Q.P.; Zhang, D.X.; Jiang, J.Z.
• Is Part Of: Scripta materialia. Number 148(2018)
• Page Start: 68
• Page End: 72
• Publication Date: 2018-04-15
• Subjects: Structural transition -- Metallic liquid -- X-ray diffraction -- ab initio molecular dynamics; Materials -- Periodicals; Metallurgy -- Periodicals; Metalen; Legeringen; Materiaalkunde; Metals, metalworking and machinery industries; Metals; Electronic journals; 620.11
• DOI: 10.1016/j.scriptamat.2018.01.027
• Languages: English
• ISSNs: 1359-6462

Abstract

Abstract: Temperature-dependent atomistic structural evolution in liquid Sn85 Zn15 eutectic alloy has been investigated by using in situ high energy X-ray diffraction and ab initio molecular dynamics simulations. We reveal a structural crossover at around 900 K in liquid Sn85 Zn15 eutectic alloy, below and above which the liquids exhibit different changes in first peak position shifts on S ( q ) and G ( r ) curves, the nearest coordination number and activation energies for self-diffusion. This structural crossover is likely ascribed to the spatial connectivity variation of local clusters. Our finding will trigger more studies on the liquid-to-liquid structural transition in metallic liquids. Graphical abstract: