Title: Modelling of properties of the alloy tool steels after laser surface treatment

Authors: Leszek A. Dobrzanski, Adam Polok, Piotr Zarychta, Ewa Jonda, Marek Piec, Krzysztof Labisz

Addresses: Institute of Material Science and Biomaterials, Silesian University of Technology, ul. Konarskiego 18a, Gliwice 44-100, Poland. ' Institute of Material Science and Biomaterials, Silesian University of Technology, ul. Konarskiego 18a, Gliwice 44-100, Poland. ' Institute of Material Science and Biomaterials, Silesian University of Technology, ul. Konarskiego 18a, Gliwice 44-100, Poland. ' Institute of Material Science and Biomaterials, Silesian University of Technology, ul. Konarskiego 18a, Gliwice 44-100, Poland. ' Institute of Material Science and Biomaterials, Silesian University of Technology, ul. Konarskiego 18a, Gliwice 44-100, Poland. ' Institute of Material Science and Biomaterials, Silesian University of Technology, ul. Konarskiego 18a, Gliwice 44-100, Poland

Abstract: This paper presents the investigation results of the computer modelling of the surface layer hardness of hot work tool alloy steel alloyed with the ceramic powders using the High Power Diode Laser (HPDL). Laser treatment by remelting or alloying with the carbides was employed for improvement of the surface layer properties of tools made from the hot work tool steels. The developed model of the neural network make predicting possible for the surface layer hardness values. Further investigations should be concentrated on computer modelling of microhardness and resistance wear abrasion using the artificial neural networks. The surface layer of the hot work steel alloyed with ceramic powder using the HPDL have good properties and makes it possible for using in various technical and industrial applications. The artificial neural networks were used to determine the technological effect of laser alloying on hardness of the hot work tool steels. [Received 10 January 2007; Accepted 12 July 2007]

Keywords: laser alloying; hot working; alloy tool steels; high power diode laser; HPDL; surface layers; microhardness; resistance wear abrasion; artificial neural networks; ANNs; surface treatment; modelling; hardness; ceramic powders.

DOI: 10.1504/IJCMSSE.2007.017249

International Journal of Computational Materials Science and Surface Engineering, 2007 Vol.1 No.5, pp.526 - 539

Published online: 21 Feb 2008 *

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