Manufacturing Technology 2015, 15(4):576-581 | DOI: 10.21062/ujep/x.2015/a/1213-2489/MT/15/4/576

Influence of Surface Refinement on Microstructure of Al-Si Cast Alloys Processed by Welding Method

Tomasz Lipiński
University of Warmia and Mazury in Olsztyn, The Faculty of Technical Sciences Department of Material and Machine Technology, St: Oczapowskiego 11, 10-957 Olsztyn, Poland

In most cases, construction materials are selected so as to attain the optimal technological properties at the lowest possible weight and cost. Studies on the improvement of the properties of casting alloys have been continuously conducted over the recent years. Both the microstructure and properties of alloys may be altered via modification with chemical components, optimization of the crystallization process, heat treatment or a combination of these methods. While searching for alternative methods of improving the engineering surface properties of hypo- and hypereutectic Al-Si alloy, an attempt was made to modify its microstructure with the use one of a heat sources. This paper presents the results of an experiment investigating the microstructure and the hardness of the Al-9%SiMg and Al-20%SiMg alloys processed by TIG welding method.

Keywords: silumin, microstructure, hardness, modification, welding method

Published: September 1, 2015  Show citation

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Lipiński T. Influence of Surface Refinement on Microstructure of Al-Si Cast Alloys Processed by Welding Method. Manufacturing Technology. 2015;15(4):576-581. doi: 10.21062/ujep/x.2015/a/1213-2489/MT/15/4/576.
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