Modelling of gradient layer properties of the 32CrMoV12-27 surface layer alloyed with WC powder

• Autorzy: Dobrzański L. A. , Labisz K. , Klimpel A. , Lelątko J.
• Konferencja: 12th International Scientific Conference CAM3S'2006, 27-30th November 2006, Gliwice-Zakopane
• Języki publikacji: EN

Abstrakty

EN

Purpose: The reason of this work was to determine the thermal fatigue resistance, the laser treatment parameters, particularly the laser power, to achieve a high value of layer hardness for protection of this hot work tool steel from losing their work stability and to make the tool surface more resistant for work. The purpose of this work was also to determine technological and technical conditions for remelting the surface layer with HPDL. Design/methodology/approach: In this paper the results of new laser treatment techniques applied in metal surface technology are presented and discussed. There is presented laser treatment with remelting of hot work tool steel 32CrMoV12-28 with ceramic powders especially carbide - WC, as well as results of laser remelting influence on structure and properties of the surface of the hot work steel, carried out using the high power diode laser (HPDL). Special attention was devoted to monitoring of the layer morphology of the investigated material and on the particle occurred. Optical and scanning electron microscopy was used to characterize the microstructure and intermetallic phases occurred. Findings: The layer is without cracks and defects as well as has a considerably higher hardness value compared to the non remelted material. 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. Research limitations/implications: The results present only four choused laser powers by one process speed rate. Also one powder in form of WC was used for alloying with the particle size of 10 micrometres. Originality/value: The originality of this work is based on applying of High Power Diode Laser for improvement of steel mechanical properties.

Słowa kluczowe

EN

surface treatment; heat treatment; hot work tool steel; laser melting

PL

obróbka powierzchniowa; obróbka cieplna; stal narzędziowa do pracy na gorąco; przetapianie laserowe

• Wydawca: International OCSCO World Press
• Czasopismo: Journal of Achievements in Materials and Manufacturing Engineering
• Rocznik: 2007
• Tom: Vol. 20, nr 1-2
• Strony: 343--346
• Opis fizyczny: Bibliogr. 15 poz., fot., rys., tab.

Twórcy

autor

Dobrzański L. A.

autor

Labisz K.

autor

Klimpel A.

autor

Lelątko J.

• Division of Materials Processing Technology, Management and Computer Techniques in Materials Science, Institute of Engineering Materials and Biomaterials, Silesian University of Technology, ul. Konarskiego 18 a, 44-100 Gliwice, Poland,

Bibliografia

• [1] L.A. Dobrzański, Fundamentals of Materials Science and Physical Metallurgy. Engineering Materials with Fundamentals of Materials Design, WNT, Warszawa (2002) (in Polish).
• [2] L.A. Dobrzański, E. Jonda, K. Lukaszkowicz, A. Kriz, Structure and tribological behavior of surface layer of laser modified X40CrMoV5-l steel, Worldwide Journal of Achievements in Materials and Manufacturing, vol. 18, (2006) 240-246.
• [3] L.A. Dobrzański, K. Labisz, M. Piec, A. Klimpel. A. Lisiecki, Influence of vanadium carbide ceramic powder on structure and properties of hot work tool steel alloyed with HPDL laser, 2nd International Conference on Manufacturing Engineering ICMEN, Kassandra-Chalkidiki, Greece (2005) 185-191.
• [4] L.A. Dobrzański, K. Labisz, M. Piec, A. Klimpel, Modeling of surface laser of the 32CrMoV12-28 tool steel using HPDL laser for alloying with TiC polder, CAM3S Contemporary Achievement in Mechanics, Manufacturing and Materials Science, Gliwice - Zakopane, Poland (2005) 66-72.
• [5] L.A. Dobrzański., M. Piec, K. Labisz, A. Lisiecki, A. Klimpel, Laser treatment of surface layer of chosen hot work tool steels, Worldwide Congress of Materials and Manufacturing Engineering and Technology COMMENT 2005, Proceedings of the 13th International Scientific Conference, Gliwice-Wisła, 183-186, 2005.
• [6] L.A. Dobrzański, J. Mazurkiewicz, E. Hajduczek, Journal of Mat. Proc. Tech. 157-158, 472-484, 2004.
• [7] A. Klimpel, High Power Diode Laser in Welding, Welding Review No. 8, Warszawa, 1999 (in Polish).
• [8] J. Kusiński, J. Przybyłowicz, S. Kąc, A. Woldan, Structure and properties change in case of laser remelting of surface layers and coatings, Hutnik, 14-20 - 1999 (in Polish).
• [9] K. Dae-Hwan, H. Seong-Hyeon, K. Byoung-Kee, Fabrication of ultrafine TaC powders by mechano-chemical process, Materials Letters, 87-92, 2004.
• [10] A. Klimpel, L.A. Dobrzański, “Laser powder surfacing of the Si-Mo spheroidal cast iron with nickel powder”, Worldwide Journal of Achievements in Materials and Manufacturing, vol 17, 2006.
• [11] L.A. Dobrzański, A.Polok, E. Jonda, Structure and properties of surface layers obtained by alloying of the hot work tool steels, Worldwide Journal of Achievements in Materials and Manufacturing, vol 17, 2006.
• [12] L.J. Yang, Wear coefficient of tungsten carbide against hot-work tool steel disc with two different pin settings., Science Direct, 234-240, 2004.
• [13] S. Yahong, H. Satoshi, Y. Masato, U. Hitoshi, T. Hironobu, Fatigue behavior and fractography of laser-processed hot work tool steel, Science Direct, 128-134, 2004.
• [14] K.S. Narasimhan, Sintering of powder mixtures and the growth of ferrous powder metallurgy, Materials Chemistry and Physics 67 (2001) 56-65.
• [15] L.A. Dobrzański, M. Bonek, A. Klimpel, A. Lisiecki, Alloying of the WCLV steel with tungsten carbide using High Power Diode Laser HPDL, Gliwice, 2002 (in Polish).