1999
DOI: 10.2355/isijinternational.39.1204
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Modeling the Processing Window for Iron Enrichment in Hot-dip Galvannealed Coatings on IF Steel Sheets.

Abstract: The proposed methodology consists of five steps:l.

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Cited by 6 publications
(12 citation statements)
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“…In a series of works [1][2][3][4][5][6][7][8][9][10] both the isothermal and non-isothermal kinetics of iron enrichment of the zinc coating have been quantitatively modeled taking into account factors such as coating mass and aluminum content. That modeling was combined with the time-temperature path followed by the moving sheet during the galvannealing cycle.…”
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confidence: 99%
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“…In a series of works [1][2][3][4][5][6][7][8][9][10] both the isothermal and non-isothermal kinetics of iron enrichment of the zinc coating have been quantitatively modeled taking into account factors such as coating mass and aluminum content. That modeling was combined with the time-temperature path followed by the moving sheet during the galvannealing cycle.…”
mentioning
confidence: 99%
“…1 obtained by passing a sheet through a galvannealing furnace with a velocity of 1 m/s. This combination of the kinetic modeling with the time-temperature path produced the "processing windows" proposed by Lopes et al 10) Those previous papers focused exclusively on hot-dip zinc coated sheets in which an interstitial free, IF, steel was the substrate. However it is well-known 11) that the steel substrate has a profound effect on the subsequent kinetics of iron enrichment of the zinc coating: low carbon substrates result in a considerably slower iron enrichment kinetics when compared with IF steel substrates.…”
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confidence: 99%
“…Therefore it is of considerable interest to understand and to quantify the evolution of the coating iron content as a function of processing variables during the galvannealing process. In previous works [1][2][3][4][5][6][7][8][9][10] the kinetics of iron enrichment for the zinc coating of IF steel sheets has been quantitatively modeled taking into account two "chemical" processing variables, namely, coating mass and aluminum content. This modeling was combined with the time-temperature path followed by the moving sheet during the galvannealing cycle.…”
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confidence: 99%
“…This combination of the kinetic modeling with the time-temperature path produced "processing windows" such as those shown in Fig. 2, for details see Lopes et al 10) The processing window is the area between two reference lines corresponding to the lower boundary coating iron content, 10 mass%, and to the upper boundary coating iron content, 11 mass%. Within these boundaries any values of line velocity and soaking temperature will produce a coating iron content within the desired limits.…”
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