Effect of Sr and Sb Modification on the Microstructure and Mechanical Properties of 226 Silumin Pressure Casts

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

Identyfikatory

DOI

10.1515/afe-2015-0019

• Języki publikacji: EN

Abstrakty

EN

The work presents the effect of strontium and antimony modification on the microstructure and mechanical properties of 226 silumin casts. The performed research demonstrated that strontium causes high refinement of silicon precipitations in the eutectic present in the microstructure of the examined silumin and it significantly affects the morphology of eutectic silicon from the lamellar to the fibrous one. Sr modification also causes an increase of: the tensile strength „R_m” by 12%; the proof stress „R_p0,2” by 5%; the unit elongation „A” by 36% and the hardness HB by 13%. Antimony did not cause a change in the microstructure of the silumin, yet it caused an increase in R_m and HB by 5%, in R_p0,2 by 7% and in A by 4%.

Słowa kluczowe

EN

casting process; pressure casting; modification; mechanical properties

PL

proces odlewniczy; odlewanie ciśnieniowe; właściwości mechaniczne

• Wydawca: Komisja Odlewnictwa Polskiej Akademii Nauk Oddział w Katowicach
• Czasopismo: Archives of Foundry Engineering
• Rocznik: 2015
• Tom: Vol. 15, iss. 1
• Strony: 105--108
• Opis fizyczny: Bibliogr. 11 poz., rys., tab., wykr.

Twórcy

autor

Szymczak T.

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

autor

Gumienny G.

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

autor

Pacyniak T.

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

Bibliografia

• [1] Szymczak, T., Gumienny, G. & Pacyniak, T. (2014). Effect of the Hold Time and Temperatureon Characteristic Quantities of TDA Curves. Archives of Foundry Engineering. 14(1), 113-116.
• [2] Gumienny, G., Szymczak, T. & Pacyniak, T. (2014). Effect of Modification on Characteristic Values of TDA Curves. Archives of Foundry Engineering. 14(spec. 1), 91-96.
• [3] Szymczak, T., Gumienny, G. & Pacyniak, T. (2014). Selected Aspects of Nitrogen Refinement of Silumin 226. Archives of Foundry Engineering. 14(3), 99-102.
• [4] 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 Casting. Katowice – Gliwice, PAN. 345-377.
• [5] Pisarek, B.P. (2013). Model of Cu-Al-Fe-Ni Bronze Crystalization. Archives of Foundry Engineering. 13(3), 72-79.
• [6] Rapiejko, C., Pisarek, B., Czekaj, E. & Pacyniak, T. (2014). Analysis of the Crystallization of AZ91 Alloy by Thermal and Derivative Analysis Method Intensively Cooled in Ceramic Shell. Archives of Foundry Engineering. 14(1), 97-102.
• [7] 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.
• [8] Pietrowski, S. (2001). Silumins. Lodz: Technical University of Lodz publisher.
• [9] Pietrowski, S., Walczak, W., Pisarek, B. & Władysiak, R. (2011). Possibilities of obtaining and controlling high-quality pressure castings. Archives of Foundry Engineering. 11(3), 125-142.
• [10] PN-EN 1706:2011. Aluminium and aluminium alloys. Castings. Chemical composition and mechanical properties.
• [11] DIN 1725-2:1986-02. Aluminium alloys, casting alloys; sand casting, gravity die casting, pressure die casting, investment casting. Katowice – Gliwice, PAN.