Effect of the Hold Time and Temperature on Characteristic Quantities of TDA Curves

• Autorzy: Szymczak T. , Gumienny G. , Pacyniak T.

Identyfikatory

DOI

10.2478/afe-2014-0025

• Języki publikacji: EN

Abstrakty

EN

This paper presents the effect of the temperature and hold time in the holding furnace of 226 silumin on the characteristic quantities of TDA curves. The temperature of phase transformations and the cooling rate were tested. It has been shown that increasing both the hold time and the temperature in the holding furnace cause the decreasethe end ofα+Al₉Fe₃Si₂+β and α+Al₂Cu+β ternary eutectics crystallization temperature in the tested silumin. This is due to the fact an increase in amounts of impurities as a result of reacting the liquid alloy with the gases contained in the air. It has been shown, however, that examined technological factors of the metal preparation do not cause systematic changes in the cooling rate.

Słowa kluczowe

EN

theory of crystallization; pressure die casting; TDA method

PL

teoria krystalizacji; odlewnictwo ciśnieniowe; metoda ATD

• Wydawca: Komisja Odlewnictwa Polskiej Akademii Nauk Oddział w Katowicach
• Czasopismo: Archives of Foundry Engineering
• Rocznik: 2014
• Tom: Vol. 14, iss. 1
• Strony: 113--116
• Opis fizyczny: Bibliogr. 6 poz., rys., tab., wykr.

Twórcy

autor

Szymczak T.

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

autor

Gumienny G.

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

autor

Pacyniak T.

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

Bibliografia

• [1] Pietrowski, S. Development of the melting and pressure die casting technology and control system of multicomponent silumins. Project No 6 ZR7 2009C/07340 – un published.
• [2] Gumienny, G. (2011). TDA method application to austenite transformation in nodular cast iron with carbides assessment. Archives of Foundry Engineering. 11(3), 159-166.
• [3] Pietrowski, S., Pisarek, B., Władysiak, R., Gumienny, G., Szymczak, T. (2009). TDA curves of metals alloys and the control of their quality. in Szajnar J. Advances in Theory and Practice Foundry. 345-377, Katowice – Gliwice: PAN.
• [4] Pisarek, B. P. (2013). Model of Cu-Al-Fe-Ni Bronze Crystallisation. Archives of Foundry Engineering. 13(3), 72-79.
• [5] Kacprzyk, B., Szymczak, T., Gumienny, G., Klimek, L. (2013). Effect of the Remelting on Transformations in Co-Cr-Mo Prosthetics Alloy. Archives of Foundry Engineering. 13(3), 47-50.
• [6] Pietrowski, S. (2001). Silumins. Lodz: Technical University of Lodz publisher.