Thermal modification of zinc-aluminum coated steel using lasers

Mathew, Remya; Stoddart, Paul R.; Nolan, David J.; Durandet, Yvonne

doi:10.2351/1.5062277

Cited by 2 publications

(2 citation statements)

References 8 publications

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“…The highly melted tracks displayed more defects/ hotspots after the laser treatment as discussed in Mathew et al (2011). Figure 6 shows an example of a melted laser track on the coating surface.…”

Section: Resultsmentioning

confidence: 90%

“…As the absorption of the laser light can be affected by the spangled surface of these coatings (Mathew et al, 2011), the melted track widths were not uniform along the track. Thus, an average of the melted track widths on the surface as well as in the microstructural cross-sections was compared with the predicted widths [using equation (7)], as given in Table 4.…”

Section: Resultsmentioning

confidence: 99%

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Parametric study of surface melting in zinc-aluminium coated steels

Mathew¹,

Stoddart²,

Nolan³

et al. 2014

IJSURFSE

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The corrosion resistance of Al-Zn-Si coated steel sheets is superior to traditional galvanised products because they combine the barrier protection of aluminium with the sacrificial protection of zinc. The corrosion resistance can be further improved by using laser surface re-melting and rapid solidification to refine the coating microstructure. To achieve the desired microstructural changes by surface melting, the surface temperature and treated-depth of the components must be precisely controlled and this depends on the laser parameters such as power, spot size and processing speed. This paper presents the results of a parametric study of laser surface melting of zinc-aluminium coatings. A model was used to determine the processing conditions required to achieve an optimal surface microstructure. The model results were consistent with the observed microstructure of both the coating and the steel substrate. This analysis provides a better understanding of the effect of the processing parameters on the coating microstructures.Reference to this paper should be made as follows: Mathew, R., Stoddart, P.R., Nolan, D. and Durandet, Y. (2014) 'Parametric study of surface melting in zinc-aluminium coated steels', Int.

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Section: Resultsmentioning

confidence: 90%

Section: Resultsmentioning

confidence: 99%

Parametric study of surface melting in zinc-aluminium coated steels

Mathew¹,

Stoddart²,

Nolan³

et al. 2014

IJSURFSE

Self Cite

View full text Add to dashboard Cite

show abstract

Optimization of the coating process by cold gas dynamic spraying applied to production conditions of Ni–Ti and Ni–Al systems

Makarov

Nikitina

Gerashchenkov

et al. 2020

Vopr. materialoved.

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This study developed practical recommendations for using the method of cold gas dynamic spraying to obtain functional coatings in a production environment using powders of nickel, titanium and aluminum of the grades: PNE-1 (Ni), PTOM-1 (Ti) and PA-VCh (Al). The temperature and speed parameters of the process were optimized using mechanical mixtures (Ni + Ti) and (Ni + Al) as an example. High adhesion of the coating and coefficient of powder use were ensured with maximum productivity at the DIMET-403 installation.

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Thermal modification of zinc-aluminum coated steel using lasers

Cited by 2 publications

References 8 publications

Parametric study of surface melting in zinc-aluminium coated steels

Parametric study of surface melting in zinc-aluminium coated steels

Optimization of the coating process by cold gas dynamic spraying applied to production conditions of Ni–Ti and Ni–Al systems

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