Structure of carbon steels after remelting of the surface layer with the electric arc

• Autorzy: Adamiak S.
• Języki publikacji: EN

Abstrakty

EN

This study presents results of a research on the enhancement of properties of the surface layer of carbon steels by treating it with a concentrated heat stream utilizing the GTAW method. Remelting of the surface layer of studied steels was performed by a welding head moving at a constant speed of 200 mm/min and varying current intensity of the electric arc ranging from 50A to 300A as well as with a constant current intensity of the electric arc and a varying speed of the welding head ranging from 200 mm/min to 800 mm/min. Metallographic evaluations (LM and SEM) of the resulting structure were performed. Correlation between the current intensity of the electric arc and its speed in relation to the treated material sample and the geometry of the remelted layers and their structure was established.

Słowa kluczowe

EN

steel; remelting; martensite; surface layer; GTAW method

PL

stal; przetapianie; martenzyt; warstwa wierzchnia; metoda GTAW

• Wydawca: Komisja Odlewnictwa Polskiej Akademii Nauk Oddział w Katowicach
• Czasopismo: Archives of Foundry Engineering
• Rocznik: 2009
• Tom: Vol. 9, iss. 2
• Strony: 181--184
• Opis fizyczny: Bibliogr. 8 poz., rys., tab.

Twórcy

autor

Adamiak S.

• Technical Institute, University of Rzeszow, Rejtana 16a, 35-111 Rzeszów, Poland,

Bibliografia

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• [3] A. W. Orłowicz, M. Mróz, Thermal coefficients of the GTAW method. Archives of Foundry, Vol. 3, No 7, 283-291, 2003, (in Polish).
• [4] Y. Adonyj, R. W. Richardson, W. A. Beaslack, Investigation of arc force effects in surface GTAW welding. Welding Journal, 9, 35-44, 1996.
• [5] Orłowicz A., Trytek A., Shevelya V.: Powierhnostnoje uprocznienije czuguna elektrodugowoj plazmoj. Kiev-Chmielnickij. 2008 (in Russian).
• [6] Orłowicz W., Mróz M.: Structure and operational characteristics of castings of LM25 alloy with surface layer refined by rapid solidification. International Journal of Cast Metals Research, 2002, vol. 15, nr 2, 85-92.
• [7] H. Kahloun, Proceedings of the Fourth International Conference on Ressidual Stresses, Baltimore, Maryland USA, 1994.
• [8] A. Bylica, W. Bochnowski, G. Więcek, Naprężenia własne w stali c45 nadtapianej laserowo, Archives of Foundry, Vol. 6, No 19, 2006, (in Polish).