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Assessment of strategic development perspectives of laser treatment of casting magnesium alloys

Dobrzańska-Danikiewicz A., Tański T., Malara Sz., Domagała-Dubiel J.

Archives of Materials Science and Engineering

2010

Vol. 45, nr 1

5-39

Purpose: The purpose of this paper is to assess the strategic perspectives of laser treatment of casting magnesium alloys such as MCMgAl12Zn1 MCMgAl9Zn1, MCMgAl6Zn1, MCMgAl3Zn1 using carbide TiC, WC, VC, SiC and Al2O3 oxide powders. The type of powder was taken as a criterion for the technology groups distinguishing in that way five groups of technologies for further research studies. Design/methodology/approach: In the framework of foresight-materials science researches: the dendrological matrix of technology value, the meteorological matrix of environment influence and the matrix of strategies for technology with the strategic development tracks were made, such researches as: X-ray microanalysis, qualitative X-ray analysis, hardness tests and roughness measurements were carried out under the scanning electron microscope and the light microscopy, as well as technology roadmaps were prepared. Findings: The outcarried researches pointed out very high potential and attractiveness of the given technologies in the background environment and the promising improvement of mechanical properties of examined materials. Research limitations/implications: Described materials science and foresight research concerning the cladding and remelting of carbides and oxides in the surface of casting magnesium alloys are a part of a wider research project aiming to define, examine and characterise innovative technology of surface engineering of engineering materials. Practical implications: The presented results of experimental materials science researches prove a significant positive effect of laser treatment with the use of carbides and oxides on the structure and properties of casting magnesium alloys that is why it is legitimate that they are included in the set of innovative technologies qualified for use in an industrial practice including small and medium enterprises. Originality/value: The value of this paper is to determine the value of laser treatment technology of casting magnesium alloys in the background environment with recommended procedure strategies, the strategic development tracks and technology roadmaps including the influence of this treatment on the quality, microstructure and properties of surface layers obtained by cladding and remelting casting magnesium alloys.