The influence of impurities in feed ingots on the quality of castings made from nickel superalloy IN-713C

• Autorzy: Binczyk F. , Cwajna J. , Sozańska M. , Gradoń P.
• Języki publikacji: EN

Abstrakty

EN

The paper presents the results of research on the impact of impurities in the feed ingots (master heat) on the precipitation of impurities in the ATD thermal analysis probe castings. This impurities occur mostly inside shrinkage cavities and in interdendritic space. Additionally, insufficient filtration of liquid alloy during pouring promotes the transfer of impurities into the casting. The technology of melting superalloys in vacuum furnace prevents the removal of slag from the surface of molten metal. Because of that, the effective method of quality assessment of feed ingots in order to evaluate the existence of impurities is needed. The effectiveness of ATD analysis in evaluation of purity of feed ingots was researched. In addition the similarities of non-metallic inclusions in feed ingots and in castings were observed.

Słowa kluczowe

EN

ATD; superalloy; feed ingot; master heat; solidification; non-metallic inclusion

PL

ATD; nadstop; wlewek; krzepnięcie; wtrącenie niemetaliczne

• Wydawca: Komisja Odlewnictwa Polskiej Akademii Nauk Oddział w Katowicach
• Czasopismo: Archives of Foundry Engineering
• Rocznik: 2013
• Tom: Vol. 13, iss. 4
• Strony: 5--8
• Opis fizyczny: Bibliogr. 10 poz., rys., tab., wykr.

Twórcy

autor

Binczyk F.

• Department of Materials Technology, Silesian University of Technology, Krasińskiego Str. 8, 40-019 Katowice, Poland

autor

Cwajna J.

• Department of Materials Science, Silesian University of Technology, Krasińskiego Str. 8, 40-019 Katowice, Poland

autor

Sozańska M.

• Department of Materials Science, Silesian University of Technology, Krasińskiego Str. 8, 40-019 Katowice, Poland

autor

Gradoń P.

• Department of Materials Technology, Silesian University of Technology, Krasińskiego Str. 8, 40-019 Katowice, Poland

Bibliografia

• [1] Chmiela, B., Sozańska, M. & Rodak, K. (2012). Phase identification in nickel-based superalloys using EBSD/SEM and electron diffraction in STEM. Solid State Phenomena. 186, 58-61.
• [2] Jura, S., Sakwa, J. & Borek, K. (1980). The use of differential thermal analysis to determine the parameters of the chemical composition. Krzepnięcie Metali i Stopów. 2.
• [3] Binczyk, F. & Krzemień, E. (1980). The use of differential curves coagulation studies cast iron crystallization. Mat. Konferencyjne Krzepnięcie Metali i Stopów. 23.
• [4] Pietrowski, S. & Władysiak, R. (1996). Control by TDA silumins piston. Krzepnięcie Metali i Stopów. 28.
• [5] Binczyk, F., Śleziona, J., Szymszal, J. & Gradoń, P. (2011). Effect of technological parameters on structure of castings made from IN-713C nickel alloy. Archives of Foundry Engineering. 11(4), 9-13. ISSN 1897-3310.
• [6] Binczyk, F., Śleziona, J. & Mikuszewski, T. (2010). Effect of repeated remelting on the chemical composition and structure of nickel alloys. Archives of Foundry Engineering. 10(spec. 1), 189-194, ISNN 1897-3310.
• [7] Binczyk, F., Śleziona, J., Cwajna, J. & Roskosz, S. (2008). ATD and DSC analysis of nickel super alloys. Archives of Foundry Engineering. 8(3), 5-9, ISSN 1897-3310.
• [8] Binczyk, F. & Śleziona, J. (2010). The ATD thermal analysis of selected nickel superalloys. Archives of Foundry Engineering. 10(2), 13-19. ISSN 1897-3310.
• [9] Binczyk, F., Śleziona, J. & Gradoń, P. (2011). Ceramic filters for bulk inoculation of nickel alloy castings. Archives of Foundry Engineering. 11(spec. 3), 29-33, ISSN 1897-3310.
• [10] Binczyk, F. (2012). Evaluation of metallurgical quality of master heat IN-713C nickel alloy ingots. Archives of Foundry Engineering. 12(4), 5-11, ISSN 1897-3310.