Abstract
The influence of laser treatment on the structure, mechanical properties and wear resistant casting of aluminium alloys has been studied. The main objective of this investigation was to improve the tribological and mechanical properties of the surface layer of the aluminium alloy AlMg5Si2Mn by remelting and feeding the chromium particles into the melt pool with a rapid solidification. The applied size of the chromium particles have been in the range 50–120 μm. For the remelting of the surface a high power diode laser (HPDL) was used. The applied laser beam power is in the range from 1.8 to 2.2 kW. The linear laser scan rate of the beam was set to 0.5 m/min. The chromium powder has been introduced in the melt pool using a gravity feeder at a constant rate of 2 g/min. The application of the laser surface treatment of aluminum alloys enables us to obtain too much harder and better wear resistance compared to based materials.
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Acknowledgments
Wojciech Pakieła is a holder of a scholarship from project “DoktoRIS—Scholarship Program for Innovative Silesia”, co-financed by the European Union under the European Social Fund.
This research was financed partially within the framework of the Scientific Research Project No. 2011/01/B/ST8/06663 headed by Dr Krzysztof Labisz.
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Tański, T., Pakieła, W., Wiśniowski, M., Dobrzański, L.A. (2015). Shaping of Surface Layer Structure and Mechanical Properties After Laser Treatment of Aluminium Alloys. In: Öchsner, A., Altenbach, H. (eds) Mechanical and Materials Engineering of Modern Structure and Component Design. Advanced Structured Materials, vol 70. Springer, Cham. https://doi.org/10.1007/978-3-319-19443-1_7
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