The development of Fe–Zn intermetallic compounds in solid Fe/Zn and Fe/Zn–Al diffusion couples during short-term annealing at 400°C

Syahbuddin, Syahbuddin; Munroe, Paul; Gleeson, Brian

doi:10.1016/s0921-5093(98)01089-2

Cited by 13 publications

(3 citation statements)

References 12 publications

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“…28,29 However, δ-FeZn 7 has still been reported as δ or δ k phase in some studies on galvannealed coatings [30][31][32] and Fe-Zn couples. 33,34 In the present work, Zn content of average 91.1-91.4 at% and 88.6-89.0 at% within the interfacial layer of heat-treated (30 and 60 min) Zn and ZnSn coatings, respectively, indicated the presence of δ 1p -FeZn 10 and δ 1k -FeZn 7 phases, as reported in previous work. 16,17 Etching revealed the presence of several phases within the interfacial layer.…”

Section: Elemental Distributions and Phases Formed After Heat Treatmentsupporting

confidence: 89%

“…In another study of short-term annealing of clamped iron and zinc couples at 400°C for 10-50 min, the ζ phase was also found to be the first phase to form, followed by δ p and Γ phases. 33 The authors also observed that Γ 1 existed as a columnar structure between the δ p and Γ phase in the initial stage and dissolved at the Γ/δ p interface when the annealing duration increased. Table 3.…”

Section: Effects Of Heat Treatment On Microstructure and Phase Evolutionmentioning

confidence: 93%

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Application of grazing incidence wide-angle X-ray scattering to characterise mechanically plated coatings

Chung,

Wang,

Durandet

2024

Materials Science and Technology

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Post-mechanical plating heat treatment on zinc and zinc–tin coatings resulted in the formation of an iron–zinc-rich intermetallic layer between the substrate and the coatings, while the outer coating layer became tin-rich in the case of heat-treated zinc–tin coatings. The novel use of grazing incidence wide-angle X-ray scattering detected not only ζ-FeZn13, δ1p-Fe13Zn126 and δ1k-FeZn6.67 phases but also Γ1-Fe11Zn40 and Γ-Fe4Zn9 phases due to the higher resolution and signal-to-noise ratio of synchrotron X-ray diffraction (XRD) compared to traditional XRD. Microstructure evolution models during the heat treatment of mechanically plated zinc and zinc–tin coatings are proposed. The formation of iron–zinc intermetallic phases was in the sequence of ζ-FeZn13, δ1p-FeZn10, δ1k-FeZn7, Γ-Fe3Zn10 and Γ1-Fe5Zn21 phases when the heat treatment duration increased.

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Section: Elemental Distributions and Phases Formed After Heat Treatmentsupporting

confidence: 89%

Section: Effects Of Heat Treatment On Microstructure and Phase Evolutionmentioning

confidence: 93%

Application of grazing incidence wide-angle X-ray scattering to characterise mechanically plated coatings

Chung,

Wang,

Durandet

2024

Materials Science and Technology

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“…We took the path of sealing the powder in an evacuated quartz ampoule followed by a diffusion annealing process. 11,12 …”

Section: Introductionmentioning

confidence: 99%

Fe-Zn intermetallic phases prepared by diffusion annealing and spark-plasma sintering

Pokorný¹,

Cinert²,

Pala³

2016

Mater. Tehnol.

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The feasibility of iron-zinc intermetallic-phase preparation by spark-plasma sintering (SPS) was investigated. The samples were prepared with a combination of powder metallurgy, where the powder was prepared in evacuated quartz tubes, and a sintering process using SPS. Since the Fe-Zn intermetallic phases are mostly used for hot-dip galvanized steels, the knowledge of the properties of individual intermetallic phases is vital for a better understanding and even further optimization of galvanization processes. The main aim of the article is to compare the phase composition of the initial powder with the SPS samples using X-ray diffraction. Furthermore, the hardness and microstructure were investigated as well. Keywords: Fe-Zn intermetallics, spark-plasma sintering, diffusion annealing, phase composition, hardness Preu~evana je bila izvedljivost priprave`elezo-cink intermetalnih faz s sintranjem v iskre~i plazmi (SPS). Vzorci so bili pripravljeni s pomo~jo metalurgije prahov, kjer so bili prahovi zaprti v evakuirane kvar~ne cevi, ki mu je sledil postopek SPS. Ker se Fe-Zn intermetalne faze ve~inoma uporablja pri vro~em cinkanju jekel, so lastnosti posamezne faze pomembne za bolj{e razumevanje in celo za optimiranje procesa galvanizacije. Glavni namen~lanka je primerjava sestave faz s pomo~jo rentgenske difrakcije v za~etnih prahovih in SPS vzorcih. Preiskovani sta bili tudi trdota in mikrostruktura. Klju~ne besede: Fe-Zn intermetalne zlitine, sintranje z iskre~o plazmo, difuzijsko`arjenje, sestava faz, trdota

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Strain-induced solid-state coating of TWIP steel sheets with zinc

Lapovok,

Berner,

Bisht

et al. 2024

J Mater Sci

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We propose the strain-induced solid-state coating process of twinning-induced plasticity (TWIP) steel with zinc, achieved through concurrent rolling of TWIP steel and zinc sheets. Our study explores the effects of strain, strain rate, and rolling temperature on the morphology and intermixing at the Zn-TWIP steel interface. We found that two simultaneous mechanisms are responsible for the formation of a joint interface between the sheets in the rolling temperature range of 100–380 °C, namely mechanical intermixing at the interface and accelerated diffusion along moving dislocations and other defects introduced during rolling. Since it is impossible to deconvolute these mechanisms, we introduced the concept of an ‘apparent diffusion coefficient’ to represent the diffusion-like mass transfer resulting from mechanical intermixing and diffusion. These diffusion coefficients were determined by primary electron energy variation method in scanning electron microscope and by energy-dispersive X-ray spectroscopy in transmission electron microscope. Notably, these diffusion coefficients were found to be higher than the grain boundary diffusion coefficients of Zn in γ-Fe, primarily due to the dynamic nature of interface microstructure formation during rolling.

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The development of Fe–Zn intermetallic compounds in solid Fe/Zn and Fe/Zn–Al diffusion couples during short-term annealing at 400°C

Cited by 13 publications

References 12 publications

Application of grazing incidence wide-angle X-ray scattering to characterise mechanically plated coatings

Application of grazing incidence wide-angle X-ray scattering to characterise mechanically plated coatings

Fe-Zn intermetallic phases prepared by diffusion annealing and spark-plasma sintering

Strain-induced solid-state coating of TWIP steel sheets with zinc

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