Laser treatment of the surface layer of 32CrMoV12-28 and X40CrMoV5-1 steels

• Autorzy: Dobrzański L. A. , Labisz K. , Jonda E.
• Języki publikacji: EN

Abstrakty

EN

Purpose: 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 and X40CrMoV5-1 hot work steels, using the high power diode laser (HPDL). In this paper there are presented the investigation results of mechanical properties and microstructure with ceramic particle powders VC vanadium carbide and WC tungsten carbide. The purpose of this work was also to determine the laser treatment conditions for surface layer treatment of the investigated steels. Design/methodology/approach: The purpose of this work was the determination of technological conditions for alloying and remelting of the surface layer particularly the laser power. There is studying the influence of treatment on the remelting depth of the surface layer to achieve high layer hardness for protection of the steel and also make the surface more resistant for work. Findings: As a result structure changes in form of fragmentation were determined. For alloying the tungsten carbide and vanadium carbide powders were used. Two phases of carbides, VC and WC, were observed. Research limitations/implications: The remelted layers which were formed on the surface of the investigated hot work steel were examined metallographically and analyzed using a hardness and micro hardness testing, X-ray diffraction, EDS microanalysis, electron scanning microscope. Practical implications: This work helps to use the new developed laser treatment technique for alloying and remelting of hot work tool steel tools for hot working conditions. Originality/value: The originality of this work is based on applying of High Power Diode Laser for improvement of steel mechanical properties as well the thermal fatigue and wear resistance.

Słowa kluczowe

EN

surface treatment; heat treatment; hot work tool steel; High Power Diode Laser (HPDL)

PL

obróbka powierzchniowa; obróbka cieplna; stal narzędziowa do pracy na gorąco; laser diodowy dużej mocy

• Wydawca: International OCSCO World Press
• Czasopismo: Journal of Achievements in Materials and Manufacturing Engineering
• Rocznik: 2008
• Tom: Vol. 29, nr 1
• Strony: 63--70
• Opis fizyczny: Bibliogr. 21 poz., il., tab., wykr.

Twórcy

autor

Dobrzański L. A.

autor

Labisz K.

autor

Jonda E.

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

Bibliografia

• [1] L. A. Dobrzański, Fundamentals of Materials Science and Physical Metallurgy. Engineering Materials with Fundamentals of Materials Design, WNT, Warsaw, 2002 (in Polish).
• [2] L. A. Dobrzański, K. Labisz, A. Klimpel, Mechanical properties and structure changes of the laser alloyed 32CrMoV12-20 steel, Journal of Achievements in Mechanical and Materials Engineering 17 (2006) 325-328.
• [3] L. Achab, E. H. Amara, N. Mebani, N. Allalou, F. Hamadi, Numerical thermodynamic field modelling of a metallic substance during laser welding, Journal of Achievements in Materials and Manufacturing Engineering 18 (2006) 94-99.
• [4] A. Klimpel, High Power Diode Laser in Welding, Welding Review No 8, Warsaw, 1999 (in Polish).
• [5] A. Klimpel, A. Lisiecki, Laser welding of butt joints of austenitic stainless steel AISI 321, Journal of Achievements in Materials and Manufacturing Engineering 25 (2007) 63-66.
• [6] J. Okrajni, A. Marek, G. Junak, Description of the deformation process under thermomechanical fatigue, Journal of Achievements in Materials and Manufacturing Engineering 22 (2007) 15-24.
• [7] L. A. Dobrzański, K. Labisz, M. Piec, A. Klimpel, Modelling of surface layer of the 32CrMoV12-28 tool steel using HPDL laser for alloying with TiC powder, Journal of Achievements in Materials and Manufacturing Engineering 24/2 (2007) 27-34.
• [8] E. Ohmura, F. Fukuyo, K. Fukumutsu, H. Morita, Internal modified-layer formation mechanism into silicon with nanosecond laser, Journal of Achievements in Materials and Manufacturing Engineering 17 (2006) 381-384.