New Approaches for Evaluating the Resistance of Clads under High Temperature Corrosion Conditions

Abstract:

The aim of the experimental work was to propose innovative procedures for the formation of renovation layers, to determine suitable material, modify the microgeometry and surface topography of new and renovated shaped parts of moulds for high-pressure casting of aluminium alloys. It has been designed and validated under laboratory and operational conditions a method of modifying the surface of the mould parts of moulds for casting aluminium alloys by forming stochastic texture by low energy laser in combination with duplex PVD coatings on the surfaces of mould parts in contact with the aluminium alloy melt. It has been verified the contact angle measurement methodology for determining the number of spurs by separation lubricant on the surface of the new or refurbished mould part before the first casting cycle. For the formation of the renovation layers, the additive materials were verified Dievar, Dratec, UTPA 702. A TruDisk 4002 solid-state disk laser with BEO D70 focusing optics was used for winding.

• Periodical: Solid State Phenomena (Volume 386)
• Pages: 63-69
• DOI: https://doi.org/10.4028/p-Gs146o
• Online since: March 2026
• Authors: Janette Brezinová*, Ján Viňáš, Jakub Brezina
• Keywords: Cladding, High Temperature Corrosion, High-Pressure Casting, PVD Nanocoating

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