Abstract
Galvannealed coatings of thickness of (20–40) µm were prepared on the ultra low carbon (ULC) steel substrate. Metalography analysis was carried out to obtain the phase composition of coatings. Coatings were then transfered onto a polyacrylate foil. Transmission spectra yielding all the positions of iron within the coating thickness were measured.
The doublet of zeta phase occured only after short annealing times, lower annealing temperatures and longer dipping times. Parameters of three sites of delta phase were observed to approach equilibrium values at higher annealing temperatures and longer annealing times. These changes are ascribed to diffusion transformations in the coatings during annelaing.
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Zmrzlý, M., Fiala, J., Schneeweiss, O. et al. Structure of intermetallic phases in Al-free galvannealed zinc coatings. Czech J Phys 55, 923–931 (2005). https://doi.org/10.1007/s10582-005-0093-z
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DOI: https://doi.org/10.1007/s10582-005-0093-z