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Comparison of Mechanical Properties of the 32CrMoV12-28 Hot Work Tool Steels Alloyed with WC, VC and TaC Powder Using HPDL Laser

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Abstract:

This work presents the investigation results of laser remelting and alloying especially the laser parameters and its influence on the structure and properties of the surface of the 32CrMoV12-28 hot work steel, using the high power diode laser (HPDL). As a result structure changes in form of fragmentation were determined. The reason of this work was to determine the optimal laser treatment parameters, particularly the laser power to achieve good layer hardness for protection of this hot work tool steel from losing their work stability and to make the tool surface more resistant to action in hard conditions. For alloying the tantalum carbide, tungsten carbide and vanadium carbide powders were used. For investigations hardness measurements of the different remelting areas were performed. The remelted layers which were formed in the surface of investigated hot work steel were examined metallographically and analyzed using light and electron microscope. Three phases of carbides, TaC, VC and WC, were observed.

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Periodical:

Key Engineering Materials (Volumes 324-325)

Pages:

1233-1236

DOI:

https://doi.org/10.4028/www.scientific.net/KEM.324-325.1233

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Online since:

November 2006

Authors:

Leszek Adam Dobrzański, Krzysztof Labisz, Andrzej Klimpel

Keywords:

Hot Work Tool Steel, Laser, Laser Alloying, Laser Melting, Tantalum Carbide, Tungsten Carbide, Vanadium Carbide

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© 2006 Trans Tech Publications Ltd. All Rights Reserved

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References

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