HPDL Laser Alloying of Al-Si-Cu Alloy with ZrO2 Powder

Krzysztof Labisz; Tomasz Tański; Beata Krupińska; Mariusz Krupiński; Wojciech Pakieła

doi:10.4028/www.scientific.net/AMR.1036.434

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HomeAdvanced Materials ResearchAdvanced Materials Research Vol. 1036HPDL Laser Alloying of Al-Si-Cu Alloy with ZrO2...

HPDL Laser Alloying of Al-Si-Cu Alloy with ZrO₂ Powder

Abstract:

The purpose of this paper was the investigation of laser treatment influence on the microstructure and properties of the surface layer of heat treated Al-Si-Cu cast aluminium alloys, using the high power diode laser (HPDL). The performed laser treatment involves remelting and feeding of ZrO₂ ceramic powder into the aluminium surface. Based on the performed investigations it was possible to obtain the layer consisting of the heat affected zone, transition zone and remelted zone, without cracks and defects as well as has with a slightly higher hardness value compared to the non remelted material. The laser power range was chose as 1.5 to 2.0 kW and implicated by one process speed rate of 0.25 m/min. Also a powder size was used for alloying with the particle size of ca. 100 μm. The hardness value increases according to the laser power used so that the highest power applied gives to highest hardness value in the remelted layer [1-8]. The carried out investigations allow to conclude, that as a result of alloying of the heat-treated cast aluminium alloys with oxide ceramic powder the surface layer can be enriched with the powder particle and in some cases a high-quality top layer is possible to obtain. Very often to determine conditions of laser treatment are being used the numerical methods that would significantly shorten the time to find the most optimal parameters. [8]. Concerning original practical implications of this work there was important to investigate the appliance possibility of High Power Diode Laser (HPDL) for enhancement of the aluminium surface properties, especially the wear resistance and hardness. the scientific reason was also to describe structure changes and processes occurred in the laser remelted surface aluminium layer after ZrO₂ feeding using HPDL laser [10-1. .

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Periodical:

Advanced Materials Research (Volume 1036)

Pages:

434-439

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.1036.434

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Online since:

October 2014

Authors:

Krzysztof Labisz*, Tomasz Tański, Beata Krupińska, Mariusz Krupiński, Wojciech Pakieła

Keywords:

Aluminium Alloy, Ball on Plate, Laser Feeding, Laser Surface Treatment, Surface Engineering, Tribological Test

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References

[1] K. Labisz, T. Tański, L.A. Dobrzański, HPDL laser alloying of heat treated Al-Si-Cu alloy, Archives of Materials Science and Engineering, Journal of Archives of Materials Science and Engineering 54\1, (2012) 13-21.