Effect of laser treatment on micro-structure and properties of cast magnesium alloys

• Autorzy: Dobrzański L. A. , Domagała-Dubiel J. , Labisz K. , Hajduczek E. , Klimpel A.
• Języki publikacji: EN

Abstrakty

EN

Purpose: The goal of this paper is to present the structure and properties of the cast magnesium alloy after laser treatment. Design/methodology/approach: The laser treatment of magnesium alloys with TiC, WC powders was carried out using a high power diode laser (HDPL). The resulting microstructure in the modified surface layer was examined using optical microscopy, scanning electron microscopy and transmission electron microscope. Phase composition was determined by the X-ray diffraction method using the XPert device. The measurements of hardness and wear resistance of the modified surface layer were also studied. Findings: The region after laser treatment has a fine microstructure with hard carbide particles. Hardness of laser surface layer with both TiC and WC particles was improved as compared to alloy without laser treatment. Research limitations/implications: In this research two powders (WC and TiC) were used with the particle size over 5 ěm. This investigation presents different laser power by one process speed rates. Practical implications: The results obtained in this investigation were promising towards compared other conventional processes. High Power Diode Laser can be used as an economical substitute of Nd:YAG and CO2 to improve the surface magnesium alloy by feeding the carbide particles. Originality/value: The originality of this work is applying of High Power Diode Laser for alloying of magnesium alloy using hard particles like tungsten and titanium carbides.

Słowa kluczowe

EN

laser treatment; magnesium alloy; high power diode laser; HPDL; tungsten carbide; titanium carbide

PL

obróbka laserowa; stop magnezowy; laser diodowy wysokiej mocy; HPDL; węglik wolframu; węglik tytanu

• Wydawca: International OCSCO World Press
• Czasopismo: Journal of Achievements in Materials and Manufacturing Engineering
• Rocznik: 2009
• Tom: Vol. 37, nr 1
• Strony: 57--64
• Opis fizyczny: Bibliogr. 15 poz., rys., tabl.

Twórcy

autor

Dobrzański L. A.

autor

Domagała-Dubiel J.

autor

Labisz K.

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 18a, 44-100 Gliwice, Poland,

Bibliografia

• [1] E. F. Horst, B. L. Mordike, Magnesium Technology. Metallurgy, Design Data, Application, Springer-Verlag, Berlin Heidelberg 2006.
• [2] G. Abbas, L. Li, U. Ghazanfar, Z. Liu, Effect of high power diode laser surface melting on wear resistance of magnesium alloys, Wear 260 (2006) 175-180.
• [3] M. Bonek, L. A. Dobrzański, Functional properties of laser modified surface of tool steel, Journal of Achievements in Mechanical and Materials Engineering 17 (2006) 313-316.
• [4] L. A. Dobrzański, T. Tański, L. Cížek, Heat treatment impact on the structure of die-cast magnesium alloys, Journal of Achievements in Mechanical and Materials Engineering 20 (2007) 431-434.
• [5] L. A Dobrzański, K. Labisz, M. Piec, A. Klimpel, Modelling of surface layer of the 31CrMoV12-18 tool steel using HPDL laser for alloying with TiC powder, Journal of Achievements in Materials and Manufacturing Engineering 24/1 (2007) 27-34.
• [6] L. A. Dobrzański, K. Labisz, M. Piec, A. Klimpel, Mechanical properties of the surface layer of the laser alloyed 32CrMoV12-28 steel, Archives of Materials Science and Engineering 29/1 (2008) 57-60.
• [7] L. A. Dobrzański, A. Polok, E. Jonda, Structure and properties of surface layers obtained by alloying of the hot work tool steels, Journal of Achievements in Materials and Manufacturing Engineering 17 (2006) 329-332.
• [8] D. Dube, M. Fiset, A. Couture, I. Nakatsugawa, Characterization and performance of laser melted AZ91D and AM60B, Materials Science and Engineering A299 (2001) 38-45.
• [9] J. Dutta Majumdar, R. Galun, B. L. Mordike, I. Manna, Effect of laser surface melting on corrosion and wear resistance of a commercial magnesium alloy, Materials Science and Engineering A361 (2003) 119-129.
• [10] J. Dutta Majumdar, B. Ramesh Chandra, R. Galun, B. L. Mordike, I. Manna, Laser composite surfacing of a magnesium alloy with silicon carbide, Composites Science and Technology 63 (2003) 771–778.
• [11] J. E. Gray, B. Luan, Protective coatings on magnesium and its alloys – critical review, Journal of Alloys and Compounds 336 (2002) 88-113.
• [12] H. Hiraga, T. Inoue, Y. Kojima, S. Kamado, S. Watanabe, Surface modification by dispersion of hard particles on magnesium alloy with laser, Materials Science Forum 253 (2000) 350-351.
• [13] S. Ignat, P. Sallamand, D. Grevey, M. Lambertin, Magnesium alloys laser (Nd:YAG) cladding and alloying with side injection of aluminium powder, Applied Surface Science 225 (2004) 124-134.
• [14] A. H. Wang, H. B. Xia, W. Y. Wang, Z. K. Bai, X. C. Zhu, C. S. Xie, YAG laser cladding of homogenous coating onto magnesium alloy, Materials Letters 60 (2006) 850-853.
• [15] Y. Gao, C. Wang, M. Yao, H. Liu, The resistance to wear and corrosion of laser-cladding Al2O3 ceramic coating on Mg alloy, Applied Surface Science 253 (2007) 5306-5311.