Phase equilibria and diffusion coefficients in the Fe-Zn binary system

Zhu, Lilong; Honrao, Shreyas; Rijal, Biswas; Hennig, Richard G.; Manuel, Michele V.

doi:10.1016/j.matdes.2019.108437

Cited by 13 publications

(2 citation statements)

References 48 publications

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“…The solid solubility of Zn in Fe at room temperature is about 2.0 atomic %, while the solid solubility of Cu in Fe is less than 0.2 atomic %. Thus, Zn is more likely to diffuse into Fe along the defect channel on the steel side . Because of the much greater strain degree of the brass side than that of the carbon steel side, the diffusion of copper and zinc elements occurs in the range of 60 nm and that of iron elements is only 15 nm.…”

Section: Resultsmentioning

confidence: 99%

Influence of the Surface State on the Interfacial Bonding Strength of the Cold-Rolled Brass/Carbon Steel Composite

Wang

Liu

et al. 2023

Langmuir

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To improve the interfacial bonding of dissimilar composites, the interaction mechanism between the surface state and severe plastic deformation to strengthen the interfacial bonding strength was revealed. In this study, the different surface states of the steel strip were designed by louver blade grinding (LBG) and diamond bowl grinding (DBG), and the cold-rolled composite method was developed to prepare the brass/carbon steel composite strips. The results show that the steel surface after DBG has a large roughness of 9.79 μm, a hard hardening layer of 6.2 GPa, and high cleanliness of 1.34 atomic % oxygen content, while that after LBG has a roughness of 1.31 μm, a hardening layer of 4.2 GPa, and an oxygen content of 2.37 atomic %. The large roughness promotes the breaking of the hardening layer; the hardening layer is beneficial to obtain sufficient interfacial stress to expose the fresh metal; and the high cleanliness reduces the barrier to the fresh metal and contributes to the bonding of the fresh metal. The interface of the cold-rolled brass/carbon steel composite strip after LBG and DBG is mechanical bonding and metallurgical bonding, respectively. In the process of the cold-rolling composite, large shear deformation occurs at the interface of brass and steel, resulting in a high concentration of vacancy and dislocation defects, which provides a channel for interdiffusion of atoms at the interface. Under the diffusion driving force provided by the cold-rolling shear deformation heat, a nanodiffusion layer with a thickness of 60 nm and high interfacial bond strength was formed.

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Section: Resultsmentioning

confidence: 99%

Influence of the Surface State on the Interfacial Bonding Strength of the Cold-Rolled Brass/Carbon Steel Composite

Wang

Liu

et al. 2023

Langmuir

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“…Note: There is a slight fluctuation in the composition of Fe-Zn intermetallic compounds, so the lattice constant will change slightly with the composition Source: (Inui et al, 2018;Zhu et al, 2020) (SCE). The stable potential is reached as soon as the electrode is immersed in the electrolyte.…”

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confidence: 99%

A review of physical properties of hot-dip galvanized coating layer by layer and their respective electrochemical corrosion behavior

Li,

Zhou

et al. 2024

ACMM

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Purpose This paper aims to contribute to the performance improvement and the broader application of hot-dip galvanized coating. Design/methodology/approach First, the ability to provide barrier protection, galvanic protection, and corrosion product protection provided by hot-dip galvanized coating is introduced. Then, according to the varying Fe content, the growth process of each sublayer within the hot-dip galvanized coating, as well as their respective microstructures and physical properties, is presented. Finally, the electrochemical corrosion behaviors of the different sublayers are analyzed. Findings The hot-dip galvanized coating is composed of η-Zn sublayer, ζ-FeZn13 sublayer, δ-FeZn10 sublayer, and Γ-Fe3Zn10 sublayer. Among these sublayers, with the increase in Fe content, the corrosion potential moves in a noble direction. Research limitations/implications There is a lack of research on the corrosion behavior of each sublayer of hot-dip galvanized coating in different electrolytes. Practical implications It provides theoretical guidance for the microstructure control and performance improvement of hot-dip galvanized coatings. Originality/value The formation mechanism, coating properties, and corrosion behavior of different sublayers in hot-dip galvanized coating are expounded, which offers novel insights and directions for future research.

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