The Effect of Sulphur Content on the Microstructure of Vermicular Graphite Cast Iron

• Autorzy: Mróz M. , Orłowicz A. W. , Tupaj M. , Lenik M. , Kawiński M. , Kawiński M.

Identyfikatory

DOI

10.24425/afe.2022.140212

• Języki publikacji: EN

Abstrakty

EN

The application of ferritic-matrix vermicular graphite cast iron in the production of fireplace fireboxes improves their thermal output, but the consumer market for these products prioritises their price. Given this consideration, this work concerns a comparison of the quality of vermicular graphite cast iron types produced from 0.025%S pig iron (a less expensive material) and 0.010%S pig iron (a more expensive material) in terms of the number and shape of vermicular graphite precipitates varying with the magnesium level in the alloy. It turned out that the vermicular graphite cast iron made with the 0.025%S pig iron demonstrated a slightly lower number of vermicular graphite precipitates. For both vermicular graphite cast iron melts, 0.028%Mg and 0.020%Mg in the alloys provided a vermicular graphite precipitate share of approx. 50% and 95%, respectively.

Słowa kluczowe

EN

pig iron; sulphur content; vermicular graphite cast iron; microstructure

PL

surówka; zawartość siarki; żeliwo grafitowe wermikularne; mikrostruktura

• Wydawca: Komisja Odlewnictwa Polskiej Akademii Nauk Oddział w Katowicach
• Czasopismo: Archives of Foundry Engineering
• Rocznik: 2022
• Tom: Vol. 22, iss. 1
• Strony: 18--22
• Opis fizyczny: Bibliogr. 10 poz., rys., tab.

Twórcy

autor

Mróz M.

• Rzeszow University of Technology, Rzeszów, Poland

autor

Orłowicz A. W.

• Rzeszow University of Technology, Rzeszów, Poland

autor

Tupaj M.

• Rzeszow University of Technology, Rzeszów, Poland

autor

Lenik M.

• Rzeszow University of Technology, Rzeszów, Poland

autor

Kawiński M.

• Cast Iron Foundry KAWMET, Orły, Poland

autor

Kawiński M.

• Cast Iron Foundry KAWMET, Orły, Poland

Bibliografia

• [1] Mróz, M., Orłowicz, A.W., Tupaj, M., Lenik, M., Kawiński, M., Kawiński, M. Influence of microstructure and heat transfer surface on the thermal power of cast iron heat exchangers. Archives of Foundry Engineering. (in progres).
• [2] Podrzucki, C., Wojtysiak, A. (1987). Unalloyed plastic cast iron. Kraków: Wyd. AGH. (in Polish).
• [3] Sillen, R. (2003). Proces PQ-CGL InMold – cast iron vermicularization in mold. Biuletyn Metals and Minerals. 3, 30-34. (in Polish).
• [4] Källbom, R., Hamberg, K., Björkegren, L.S. Chunky graphite in ductile cast iron castings. World Foundry Congress, 184/1-184/10, WFC 06.
• [5] Goodrich, G.M. (2001). A microview of some factors that impact cast iron (or the little things that mean a lot). AFS Transactions. 01-121, 1173-1189.
• [6] Pietrowski, S., Pisarek, B., Władysiak, R. (2000). Investigation of the crystallization of cast iron with vermicular graphite and description of its analytical and numerical model. Research project KBN Nr 7T08B 006 13, Łódź, (in Polish).
• [7] Żyrek, A. (2014). Manufacture of vermicular cast iron by the In mould method with the use of magnesium mortars and evaluation of its resistance to thermal fatigue. PhD thesis AGH Kraków. (in Polish).
• [8] Nodżak, G. (2002). Analysis of the possibilities produced in the foundry of WSK "PZL Rzeszów" S.A. castings of a high power diesel engine head from vermicular cast iron. Master thesis, AGH Kraków. (in Polish).
• [9] Orłowicz A.W. (2000). The use of ultrasound in foundry. Monograph. Krzepnięcie Metali i Stopów. 2(45). (in Polish).
• [10] Ashby, M.F. (1998). Selection of materials in engineering design. Warszawa: Wyd. Naukowo-Techniczne. (in Polish).