Effect of Mg and Si contents on hot-dip 55Al-Zn plating: Experimental and molecular dynamics simulation

Zhang, Guoqiang; Zhang, Shaoshuang; Song, Renbo; Cai, Changhong

doi:10.1016/j.mtcomm.2023.106131

Cited by 2 publications

(1 citation statement)

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“…In practice, addressing the challenge of severe erosion on container surfaces involves employing surface modification treatments. Among these methods, the application of hot-dip aluminum coating emerges as a robust protective measure [16,17]. The combination of thicker aluminum coatings with micro-arc oxidation (MAO) technology leads to the creation of ceramic coatings that serve as effective barriers against liquid aluminum corrosion [18][19][20].…”

Section: Introductionmentioning

confidence: 99%

Insight into Microstructure Evolution and Corrosion Mechanisms of K2ZrF6/Al2O3-Doped Hot-Dip Aluminum/Micro-Arc Oxidation Coatings

Wang,

Peng,

Yang

et al. 2023

Coatings

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In this study, we investigated the impact of K2ZrF6/Al2O3 composite additives on the microstructure evolution and corrosion behavior of ceramic coatings formed through micro-arc oxidation (MAO) treatment on hot-dip aluminum-coated 316L stainless steel surfaces. Our findings revealed the successful preparation of micro-arc oxidation ceramic coatings, presenting a dual-layer structure consisting of a porous micro-arc oxidation ceramic outer layer and a relatively dense/thick hot-dip aluminum inner layer. The incorporation of K2ZrF6/Al2O3 composite additives induced a self-sealing effect on the ceramic coating surface. Optimal coating performance was achieved with a composite additive concentration of 7.5 g/L, resulting in remarkable improvements not only in thickness, hardness, and surface smoothness but also in corrosion resistance. This research introduces a pioneering investigation of K2ZrF6/Al2O3 composite additives in the context of micro-arc oxidation technology, offering fresh perspectives and methodologies for the development of highly corrosion-resistant materials.

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