TDA method application to austenite transformation in nodular cast iron with carbides assessment

• Autorzy: Gumienny, G.
• Języki publikacji: EN

Abstrakty

EN

In this paper the possibility of TDA method using to austenite transformation in nodular cast iron with carbides assessment is presented. Studies were conducted on cast iron with about 2% molybdenum and 0,70% to 4,50% nickel. On diagrams, where TDA curves are presented, on time axis a logarithmic scale was applied. It has not been used up to now. It was found, that during cooling and crystallization of cast iron in TDA probe, on the derivative curve there is a slight thermal effect from austenite to upper bainite or martensite transformation. Depending on nickel concentration austenite upper bainite transformation start temperature changed (Bus), while MS temperature was independent of it. An influence of nickel on eutectic transformation temperature in nodular cast iron with carbides was determined too.

Słowa kluczowe

PL

innowacyjne technologie odlewnicze; innowacyjne materiały odlewnicze; żeliwo sferoidalne; węgliki; bainit; martenzyt; metoda ATD

EN

innovative foundry technologies; innovative foundry material; nodular cast iron; carbides; bainite; martensite; TDA method

• Czasopismo: Archives of Foundry Engineering
• Rocznik: 2011
• Tom: Vol. 11, iss. 3
• Strony: 159-166
• Opis fizyczny: Bibliogr. 17 poz., rys., tab., wykr.

Twórcy

autor

Gumienny, G.

• Department of Materials Engineering and Production Systems, Technical University of Łódź, Stefanowskiego 1/15 Street, 90-924 Łódź, Poland,

Bibliografia

• [1] Pietrowski S., Pisarek B., Gumienny G., Characteristic of DTA curves for cast ferrous alloys, Archives of Foundry Engineering 2008 Vol. 8, Issue 1/2008. p.183-197.
• [2] Pietrowski S., Pisarek B., Gumienny G., Computer-aided control of high-quality cast iron, Archives of Foundry Engi-neering, 2008 Vol. 8, Issue 1/2008. p.101-108.
• [3] Pietrowski S., Pisarek B., Władysiak R., Gumienny G., Szymczak T., TDA curves of metals alloys and the control of their quality, Monography. Progresses of foundry theory and practice, edit.: J. Szajnar, Polish Academy of Science, Foundry Commission, Katowice-Gliwice 2009, p. 345-376.
• [4] Pietrowski S., Control of cast iron and casts manufacturing by Inmold method, Archives of Foundry Engineering, 2009 Vol. 9, Nr 3/2009, p. 133-142.
• [5] Pietrowski S., Gumienny G., Crystallization of nodular cast iron with carbides. Archives of Foundry Engineering, 2008 Vol. 8, Issue 4/2008, p. 236-240.
• [6] Pietrowski S., Gumienny G., Nodular cast iron with carbides, Archives of Foundry Engineering, No 19, 2006, p. 233-238 (in Polish).
• [7] Pietrowski S., Gumienny G., Pisarek B., Monitoring of nodular cast iron production in foundry conditions, Archives of Foundry Engineering, No 19, 2006, p. 239-250 (in Polish).
• [8] Pietrowski S., Gumienny G., Bainite obtaining in cast iron with carbides castings, Archives of Foundry Engineering, 2010 Vol. 10, Issue 1, p. 109-114.
• [9] Pietrowski S., Gumienny G., Crystallization of nodular cast iron with additions of Mo, Cr, Cu and Ni, Archives of Foundry Engineering, No 22, 2006, p. 406-413 (in Polish).
• [10] Research Project, Assessment of nodular cast iron quality with use of thermal derivative analysis method (TDA), No 4 T08B 013 22.
• [11] Specific Targeted Research Project, Implementation of self-written computer program to EN-GJS-500-7 and GJS-600-3 nodular cast iron production control, ROW-484-2004.
• [12] Specific Targeted Research Project, Elaboration and implementation of Inmold method in Cast Iron Foundry in Bo-limów, ROW-II-363/2008.
• [13] Pietrowski S., Gumienny G., Bainite obtaining in cast iron with carbides castings, Archives of Foundry Engineering, 2010 Vol. 10, Issue 1, p. 109-114.
• [14] Gumienny G., Bainitic-martensitic nodular cast iron with carbides, Archives of Foundry Engineering, 2010 Vol. 10, Issue 2, p. 63-68.
• [15] Gumienny G., Chromium and copper influence on the nodular cast iron with carbides microstructure, Archives of Foundry Engineering, 2010 Vol. 10, Issue 4, p. 47-54.
• [16] Pietrowski S., The influence of the chemical composition of nodular cast steel and cast iron and castings cooling rate on the austenite transformation to acicular structures, Scientific Books No 94, Technical University of Łódź 1987 (in Polish).
• [17] Gudremon E., Special Steels, Moscow 1960 (in Russian).