Warianty tytułu
Języki publikacji
Abstrakty
Purpose: The aim of this work was to improve the surface layer cast magnesium cast alloys by laser surface treatment, determine the laser treatment parameters and examine structure and properties. Design/methodology/approach: The laser treatment of magnesium alloys with alloying SiC and TiC powders with the particles size below 75 μ m and over 6.4 μm was carried out using a high power diode laser (HPDL). The resulting microstructure in the modified surface layer and was examinated using scanning electron microscopy. The X-ray qualitative and quantitative microanalysis and the analysis of a surface distribution of cast elements in the examined magnesium cast alloy was examined. The measurements of hardness and roughness of the modified surface layer was also studied. Findings: The alloyed region has a fine microstructure with hard carbide particles. Hardness of laser surface alloyed layer was dropped as compared to alloy without laser treatment. The roughness of layer surface increased after laser alloying and values are bigger for SiC alloying particles. Research limitations/implications: The investigations were conducted for cast magnesium alloys MCMgAl12Zn1 and MCMgAl9Zn1 and also TiC and SiC powders. One has used laser power in the range from 1.2 to 2.0 kW. Practical implications: The results obtained in this investigation were promising to 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 value of this work is definition of the influence of laser treatment parameters on quality, microstructure and hardness of magnesium cast alloys surface layer.
Rocznik
Tom
Strony
95-100
Opis fizyczny
Bibliogr. 15 poz.
Twórcy
autor
autor
autor
autor
autor
- 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, leszek.dobrzanski@polsl.pl
Bibliografia
- [1] Z. Górny, J. Sobczak, Modern casting materials based on non-ferrous metals, Cracow, ZA-PIS, 2005, (in Polish).
- [2] E.F. Horst, B.L. Mordike, Magnesium Technology. Metallurgy, Design Data, Application, Springer-Verlag, Berlin, 2006.
- [3] B. Bronfin, N. Moscovitch, New magnesium alloys for transmission parts, Metal Science and Heat Treatment 48/11-12 (2006) 479-486.
- [4] A. Kiełbus, Structure and mechanical properties of casting MSR-B magnesium alloy, Journal of Achievements in Materials and Manufacturing Engineering 18 (2006) 131-134.
- [5] L. Čížek, L. Pawlica, R. Kocich, M. Janosec, T. Tański, M. Prazmowski, Structure and properties of Mg-Zr and Mg-Si alloys, Journal of Achievements in Materials and Manufacturing Engineering 27/2 (2008) 127-130.
- [6] M. Greger, R. Kocich, L. Čížek, L.A. Dobrzański, I. Juřička, Possibilities of mechanical properties and microstructure improvement of magnesium alloys, Archives of Materials Science and Engineering 28/2 (2007) 83-90.
- [7] 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.
- [8] F. Vollertsen, K. Partes, J. Meijer, State of the art of Laser Hardening and Cladding, Proceedings of the 3th International WLT-Conference on Lasers in Manufacturing 2005,Munich.
- [9] F. Bachmann, Industrial applications of high power diode lasers in materials processing, Applied Surface Science 208-209 (2003) 125-136.
- [10] G. Abbas, Z. Liu, P. Skeldon, Corrosion behavior of laser-melted magnesium alloys, Applied Surface Science 247 (2005) 347-353.
- [11] R. Galun, A. Weisheit, B.L. Mordike, I. Manna, Improving the surface properties of magnesium by laser alloying, Corrosion Reviews 16/1-2 (1998) 53-73.
- [12] 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, Science Direct, Materials Letters 60 (2006), 850-853.
- [13] 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.
- [14] 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 350 (2000) 253-258.
- [15] X. Cao, M. Jahazi, J.P. Immarigeon, W. Wallace, A review of laser welding techniques for magnesium alloys, Journal of Materials Processing Technology 171 (2006) 188-204.
Typ dokumentu
Bibliografia
Identyfikatory
Identyfikator YADDA
bwmeta1.element.baztech-article-BSL8-0029-0013