Crystallisation mechanism of laser alloyed gradient layer on tool steel

• Autorzy: Bonek M. , Dobrzański L. A. , Piec M. , Hajduczek E. , Klimpel A.
• Konferencja: 12th International Scientific Conference CAM3S'2006, 27-30th November 2006, Gliwice-Zakopane
• Języki publikacji: EN

Abstrakty

EN

Purpose: The objective of the present work was to study the modification of the microstructure of hot-work tool steel X40CrMoV5-1 during the surface modifying by means of laser technology. Design/methodology/approach: The structural mechanism of surface layer development was determined and the effect of alloying parameters and thickness of paste layer applied onto the steel surface on structure refinement and influence of these factors on the crystallisation mechanism of surface layer was studied. Findings: development of the surface layer was observed in which one can distinguish the remelted zone, heat-affected zone and the transient zone. The finite grained, dendritic structure occurs in the remelted and alloyed zone with the crystallization direction connected with the dynamical heat abstraction from the laser beam influence zone. The X40CrMoV5-1 conventionally heat treated steel was used as reference material. Practical implications: Laser surface modification has the important cognitive significance and gives grounds to the practical employment of these technologies for forming the surfaces of new tools and regeneration of the used ones. Originality/value: The outcome of the research is an investigation showing the structural mechanisms accompanying laser alloying.

Słowa kluczowe

EN

heat treatment; laser; tool materials; wear resistance

PL

obróbka cieplna; laser; materiały narzędziowe; odporność na zużycie

• Wydawca: International OCSCO World Press
• Czasopismo: Journal of Achievements in Materials and Manufacturing Engineering
• Rocznik: 2007
• Tom: Vol. 20, nr 1-2
• Strony: 411--414
• Opis fizyczny: Bibliogr. 15 poz., fot., rys.

Twórcy

autor

Bonek M.

autor

Dobrzański L. A.

autor

Piec M.

autor

Hajduczek E.

autor

Klimpel A.

• 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, M. Bonek, E. Hajduczek, A. Klimpel, Application of high power diode laser (HPDL) for alloying of X40CrMoV5-l steel surface layer by tungsten carbides, Journal of Material Processing Technology 155-156 (2004) 1956-1963.
• [2] L.A. Dobrzański, M. Bonek, A. Klimpel, A. Lisiecki, Surface layer's structure of X40CrMoV5-1 steel remelted and/or WC alloyed with HPDL laser, Materials Science Forum, 3 (140), (2003) 69-72.
• [3] L.A. Dobrzański, E. Jonda, M. Bonek. K Labisz, M. Piec, A. Polok, Properties and structures of gradient layer surface of 32CrMoV12-28 hot work steel alloyed using high power diode laser, International Conference on Manufacturing and Materials Processing 2006 (ICMM 2006) Kuala Lumpur, Malaysia, 2006, 171-174.
• [4] M. Bonek, L.A. Dobrzański, Comparison of the structures of the hot-work tool steels laser modified gradient layers, 2nd Pacific International Conference on Applications of Lasers and Optics (PICALO06), Melbourne, Australia, 2006,CD.
• [5] M. Bonek, L.A. Dobrzański, Functional properties of laser modified surface of tool steel, Wordwide Journal of Achievements in Materials and Manufacturing Engineering, Vol. 17, Issue 1-2 (2006) 313-316.
• [6] L.A. Dobrzański, M. Bonek, M. Piec, E. Jonda, Diode laser modification of surface gradient layer properties of a hot-work tool steel, Materials Science Forum, Vols. 532-533, Switzerland (2006) 657-660.
• [7] L. Lin, Materials processing with a high power diode laser, ICALEO 1996 - Section E, (1996) 38-47.
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• [13] I.R. Pashby, S. Barnes, B.G. Bryden, Surface hardening of steel using a high power diode laser, Journal of Material Processing Technology 139, (2003) 585-588.
• [14] A. Klimpel, High power diode laser in surfacing by welding, Welding review, Vol.6, (2003) 1-6 (in Polish).
• [15] L.A. Dobrzański, M. Piec, K. Labisz, M. Bonek, A. Lisiecki, A. Klimpel, Laser treatment of surface layer over choosen hot work tool steels, 13th Scientific International Conference „Achievements in Mechanical and Materials Engineering” AMME'2005, Gliwice - Wisła, 2005, 183-186.