Laser surface treatment of magnesium alloys with silicon carbide powder

• Autorzy: Dobrzański L. , Malara S. , Tański T. , Klimpel A. , Janicki D.
• Języki publikacji: EN

Abstrakty

EN

Purpose: The aim of this work was to improve the surface layer cast magnesium cast alloys by laser surface treatment and determine the laser treatment parameters. Design/methodology/approach: The laser treatment of magnesium alloys with alloying SiC powder with the particle size below 75 μm was carried out using a high power diode laser (HPDL). The resulting microstructure in the modified surface layer was examinated using scanning electron microscopy. Phase composition was determined by the X-ray diffraction method using the XPert device. The measurements of microhardness of the modified surface layer was also studied. Findings: The alloyed region has a fine microstructure with hard carbide particles. Microhardness of laser surface alloyed layer was significantly improved as compared to alloy without laser treatment. Research limitations/implications: The investigations were conducted for cast magnesium alloys MCMgAl12Zn1, MCMgAl9Zn1, MCMgAl6Zn1, MCMgAl3Zn1 and SiC powder with the particle size below 75 μm. 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 microhardness of magnesium cast alloys surface layer.

Słowa kluczowe

EN

surface treatment; magnesium alloys; laser treatment; silicon carbide

PL

obróbka powierzchniowa; stopy magnezu; obróbka laserowa; węglik krzemu

• Wydawca: International OCSCO World Press
• Czasopismo: Archives of Materials Science and Engineering
• Rocznik: 2009
• Tom: Vol. 35, nr 1
• Strony: 54--60
• Opis fizyczny: Bibliogr. 15 poz.

Twórcy

autor

Dobrzański L.

autor

Malara S.

autor

Tański T.

autor

Klimpel A.

autor

Janicki D.

• 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

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