Influence of heat-pretreatments on the microstructural and mechanical properties of galfan-coated metal bonds

Hordych, Illia; Rodman, Dmytro; Nürnberger, Florian; Schmidt, Hans C.; Orive, Alejandro González; Homberg, Werner; Grundmeier, Guido; Maier, Hans Jürgen

doi:10.1063/1.5034861

Cited by 5 publications

(3 citation statements)

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“…Before the heat treatment, the tinned steel specimens were symmetrically roll bonded at room temperature with a rolling speed of 0.02 ms −1 on a duo rolling mill (Buehler 135roller diameter 130 mm) following a gradual reduction procedure that was established by the authors in a previous investigation [21]. One pass with reduction ratios (ε) ranging from 43% to 85% was used in the experiments.…”

Section: Methodsmentioning

confidence: 99%

“…The additional presence of 5 wt% Al in a galfan coating allowed a cold bonding without the need for an additional heat pre-treatment. Still, a heat pre-treatment further increased the bond strength of the galfan-coated samples [21].…”

Section: Introductionmentioning

confidence: 98%

“…In addition, the function of an intermediate layer can be influenced by heat pre-treatment. In previous studies, the application of zinc as well as galfan coatings as passive intermediate layers was investigated [20,21]. Zinc, being more ductile than iron, belongs to the category of the active intermediate layer, yet a successful bonding could not be achieved in these studies.…”

Section: Introductionmentioning

confidence: 99%

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Cold Roll Bonding of Tin-Coated Steel Sheets with Subsequent Heat Treatment

Hordych

Barienti

Herbst

et al. 2021

Metals

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One possibility to increase the interface strength of cold roll bonded materials is the application of a thin intermediate layer. In the present study, a tin coating was employed to strengthen the interface formed between cold roll bonded steel sheets, and the impact of subsequent heat treatment on the resulting bonding strength was investigated. To increase the bond strength by diffusion, the tin-coated steel bonds underwent heat post-treatment between temperatures of 150 °C and 300 °C for different dwell times. The results demonstrate that the use of tin as an active intermediate layer increases the bond area established. Moreover, the thin tin coating results in the formation of an active intermediate layer that directly takes part in the joining process by establishing a reactive link between the two substrates. A subsequent heat treatment further affects the bond strength by diffusion of tin at the interface.

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Section: Methodsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 98%

Section: Introductionmentioning

confidence: 99%

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