@ARTICLE{Tupaj_M._Geometry_2013, author={Tupaj, M. and Mróz, M. and Orłowicz, W.}, number={No 2}, journal={Archives of Foundry Engineering}, howpublished={online}, year={2013}, publisher={The Katowice Branch of the Polish Academy of Sciences}, abstract={The paper summarises results of measurements of remelting area geometry, thermal efficiency and melting efficiency characterising the surface remelting process applied to castings of MAR-M-509 cobalt alloy. The remelting process was carried out with the use of GTAW (Gas Tungsten Arc Welding) method in protective atmosphere of helium, at the electric current intensity in the range from 100 A to 300 A, and the electric arc scanning velocity vs in the range from 200 mm/min to 800 mm/min. The effect of current intensity and electric arc scanning velocity on geometrical parameters of remeltings, thermal efficiency, and melting efficiency characterising the remelting process has been determined.}, type={Artykuły / Articles}, title={Geometry of Remeltings and Efficiency of the Surface Remelting Process Applied to Cobalt Alloy Castings}, URL={http://www.journals.pan.pl/Content/87435/PDF/18_paper.pdf}, doi={10.2478/afe-2013-0044}, keywords={MAR-M509 alloy, thermal efficiency, Surface remelting, Remelting geometry, Melting efficiency}, }