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Structure and Properties of the 32CrMoV12-28 Steel Alloyed with WC Powder Using HPDL Laser

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Abstract:

This paper presents the investigation results of laser alloying and the influence on structure and properties of the surface of the 32CrMoV12-28 hot work steel, carried out using the high power diode laser (HPDL). Structure changes were determined in the work, especially structure fragmentation. Also hardness investigation of the different remelting areas was performed. The reason of this work was also to determine the laser treatment parameters, particularly the laser power, to achieve good work stability and to make the tool surface more resistant for work extremal conditions. Based on microstructural examinations of the obtained material, the distribution of the reinforcing ceramic particles in the hot work tool steel was revealed. Tungsten carbide WC powder was used for alloying. The remelted layers which were formed on the surface of the investigated hot work steel were examined metallographically and analyzed using a hardness testing machine.

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Periodical:

Materials Science Forum (Volumes 530-531)

Pages:

334-339

DOI:

https://doi.org/10.4028/www.scientific.net/MSF.530-531.334

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Online since:

November 2006

Authors:

Leszek Adam Dobrzański, Krzysztof Labisz, Marek Piec, Józef Lelątko, Andrzej Klimpel

Keywords:

Alloying, Casting, Hot Work Tool Steel, Laser, Laser Melting, Remelting, Surface Modelling, Tungsten Carbide

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© 2006 Trans Tech Publications Ltd. All Rights Reserved

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References

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