Formation of periodic layered structure during reaction between Co2Si and liquid Zn

SURFACE & COATINGS TECHNOLOGY

卷:307

Article

Liu, Ya^1,2  Tang, Maoyou¹  Dong, Zhen¹  Wu, Changjun¹  Su, Xuping^1,2 

[1] Changzhou Univ, Jiangsu Key Lab Mat Surface Sci & Technol, Changzhou 213164, Peoples R China

[2] Changzhou Univ, Jiangsu Collaborat Innovat Ctr Photovolta Sci & E, Sch Mat Sci & Engn, Changzhou 213164, Peoples R China

关键词: Hot-dip galvanizing;    Co-based alloy;    Periodic layered structure;    Anisotropy;    Thermodynamics;   

DOI  :  10.1016/j.surfcoat.2016.10.017

来源: Elsevier

【 摘 要 】

Reactions of Co2Si alloy with liquid zinc for annealing time up to 720 min were studied by means of scanning electron microscope, energy-dispersive X-ray spectroscope and electron backscattered diffraction techniques. The results showed that periodic patterns, Co2Si/(gamma(2) + eta-Zn), were observed in the reaction zone, and its thickness and morphology were dependent on the crystallographic orientation of Co2Si grain. The relationship between anisotropy growth of the periodic patterns and crystal structure was explained with the concept of dangling bonds. The thermodynamic foundation and mechanism of formation of the periodic layered structure were elaborated in this paper. (C) 2016 Elsevier B.V. All rights reserved.

【 授权许可】

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