Laser ablation surface layer texturing of selected Fe-C alloys

• Autorzy: Napadłek W.
• Języki publikacji: EN

Abstrakty

EN

Purpose: Present the results of their own research on the ablative laser texturing of selected Fe-C alloys. Design/methodology/approach: This article presents selected examples of the microstructure and stereometry investigations of Fe-C alloys (41Cr4 steel, 41CrAlMo7 acid-resistant steel, steel resistant towards corrosion and low-alloying gray cast iron EN-GJL300) were presented. Findings: One study found that an increase in the radiation power density q = 0,53 MW/cm² significantly affect the efficiency (depth) of ablative laser texturing. After crossing the power density is a significant reduction in the efficiency of laser ablation process. This is probably connected with the phenomenon of plasma shielding generated in the laser pulse. Research limitations/implications: In the following laboratory tests are proposed in the use of absorbent materials to increase the absorption of the laser radiation and inertial layers to improve the efficiency texturing. Practical implications: The research results can be used to modify the surface layer of machine components which are wear-resistant in friction conditions. Originality/value: The novelty in the paper is the use of laser ablation phenomenon to produce surface texture in alloys Fe-C, mainly in terms of tribological.

Słowa kluczowe

EN

Fe-C alloys; laser ablation texturing; microstructure; surface stereometry

• Wydawca: International OCSCO World Press
• Czasopismo: Journal of Achievements in Materials and Manufacturing Engineering
• Rocznik: 2012
• Tom: Vol. 55, nr 2
• Strony: 748--752
• Opis fizyczny: Bibliogr. 9 poz., rys.

Twórcy

autor

Napadłek W.

• Faculty of Mechanical Engineering, Military University of Technology, ul. Gen. S. Kaliskiego 2, 00-908 Warszawa, Poland

Bibliografia

• [1] J. Meijer, Laser beam machining (LBM), State of the art and new opportunities, Journal of Materials Processing Technology 149 (2004) 2-17.
• [2] S. Schreck, K.H. Zum Gahr, Laser-assisted structuring of ceramic and steel surfaces for improving tribological properties, Applied Surface Science 247/1-4 (2005) 616-622.
• [3] A. Soveja, J. Jouvard, D. Grevey, Metal surface laser texturing multiphysics modeling of a single impact effect, Proceedings of the COMSOL Users Conference Grenoble, 2007.
• [4] L.A. Dobrzański, A. Drygała, P. Pank, M. Lipiński, P. Zięba, Development of the laser metod of multicrystaline silicon surface texturization, Archives of Materials Science and Engineering 38/1 (2009) 5-11.
• [5] T. Burakowski, W. Napadłek, Kinds of laser surface texturing, Materials Science 4/182 (2011) 356-358.
• [6] W. Napadłek, T. Burakowski, Some examples of laser surface texturing, Engineering materials 4/182 (2011) 633-636.
• [7] W. Napadłek, Research influence laser hardening of selected properties of the customary steel 40H, PhD thesis, Military University of Technology, Warsaw, 2002.
• [8] W. Napadłek, Micro-treatment laser liner surface layer in tribological aspect, Maintenance Issues 4/83 (2011) 27-42.
• [9] W. Napadłek, Shaping of technological surface layer of piston rings of the combustion engine with laser micro-treatment, Materials Science 4/182 (2011) 628-632.