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M. Cagala, E. Mazancová, P. Lichý, J. Beňo, M. Břuska and N. Špirutová

-877. Schumann, V. H. (1972). Neue Hütte , 17, 605-609. Mazancová, E. (2007). New Material Types for Automotive Industry - Physical Engineering Properties of High Strength Material Alloyed With Manganese and of Metal Hydrides Alloys for Hydrogen Storage. (1st. ed.). Ostrava: VŠB-TU Ostrava, (in Czech). Blech, W., Phiu-On, K., Heeving, Ch. & Hirt, G. (2007). Steel Research Int. 78, 536-546. Mintz, B., Cowley, C., Talian, C., Crowther, D. N. & Abushosba, R. (2003). Mater. Sci. Tech. 19, 184

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G. Tęcza and A. Garbacz-Klempka

References [1] Kniaginin, G. (1968). Austenitic manganese cast steel . Kraków: PWN. (in Polish). [2] Smith, R.W., DeMonte, A. & Mackay W.B.F. (2004). Development of high-manganese steels for heavy duty cast-to-shape applications. Journal of Materials Processing Technology. 153-154, 589-595. [3] Głownia, J. (2002). Castings alloy steel - application. Kraków: Fotobit. (in Polish). [4] Głownia, J., Kalandyk, B., Furgał, G. (1999). Characteristics of cast steel alloy . Kraków: Wyd. AGH, Skrypt SU1569. (in Polish). [5] Telejko, I

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R. Podprocká and D. Bolibruchová

References [1] Taylor, J.A. (2012). Iron-containing intermetallic phase in Al-Si based casting alloys. Procedia Materials Science . 1, 19-33. [2] Shabestari S.G., 2004. The effect of iron and manganese on the formation of intermetallic compounds in aluminium-silicon alloys. Materials Science and Engineering A. 383, 289-298. [3] Dinnis, C.M. et al. (2005). As-cast morphology of iron-intermetallics in Al-Si foundry alloys. Scripta Materialia . 53(8), 955-958. [4] Tillová, E., Chalupová, M. (2009). Structural analysis of Al-Si cast

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B. Kalandyk, G. Tęcza, R. Zapała and S. Sobula

References [1] Kniaginin G. (1968). Austenitic manganese cast steel. Kraków: PWN. (in Polish). [2] Sakwa W. & Jura S. & Sakwa J. (1980). Wear resistance iron alloys. Kraków: STOP. (in Polish). [3] Głownia J. (2002). Castings from Alloyed Steel - Applications. Kraków: Fotobit. (in Polish). [4] Stradomski Z. (2000). Microstructural aspects of explosionstrengthening of Hadfield cast steel. Częstochowa : Ed.Częstochowa University of Technology. (in Polish). [5] Krawiarz J. & Magalas L

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D. Barloková and J. Ilavský

Ministry of the Environment of the Slovak Republic, Slovak Environmental Agency , ISBN 978-80-88833-53-6, p. 308. [3] Doula, Maria, K. : Removal of Mn2+ Ions from Drinking Water by Using Clinoptilolite and Clinoptilolite-Fe Oxide System . Water Research, Vol. 40, No. 17, October 2006, pp. 3167-3176. [4] Knocke, W.R., et al. : Kinetics of Manganese and Iron Oxidation by Potassium Permanganate and Chlorine Dioxide. Jour. AWWA, Vol. 6, 1991, pp. 80-87. [5] Knocke, W.R., Hungate, R., Occiano, S. : Removal of Soluble

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B. Kalandyk and R. Zapała

References [1] PN-EN 1034: (2010). Castings from steel - castings from high austenitic manganese steel. [2] Głownia, J., Tęcza, G., Sobula, S., Rąpała, M. & Stańczak S. (2008). Effects of the Hadfield steel quenching in polymers solutions. Foundry Journal of the Polish Foundrymen’s Association, (7-8), 378-382. [3] Kniaginin, G. (1968). Austenitic manganese cast steel. Kraków: PWN. (in Polish). [4] Stradomski, Z. (2000). Microstructural aspects of explosionstrengthening of Hadfield cast steel. Ed

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M. Holtzer, A. Bobrowski, D. Drożyński and J. Mocek

References [1] Holtzer, M. (1990). Interfacial reaction between high-manganese cast steel and silica sand or chromite sand. Foundryman. 83, March, 135-141 . [2] Holtzer, M. (1992). Badanie mechanizmu i stopnia wzajemnego oddziaływania ciekłego staliwa Hadfielda i masy formierskiej. Zeszyty Naukowe AGH Metalurgia i Odlewnictwo, Kraków. [3] Zych, J. (2001). Analiza wad odlewów . Kraków AGH Uczelniane Wydawnictwo Naukowo-Dydaktyczne. [4] Falęcki, Z. (1997). Analiza wad odlewów

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Izabela Krupińska

form żelaza i manganu z wód podziemnych, Ochrona Środowiska, 1/60 (1996) 25-26. 4. Civardi J., Tompeck M.: Iron and manganese removal handbook. Second Edition. Denver, CO: American Water Works Association 2015. 5. Dempsey B. A., Ganho R. M., O Melia C. R.: The coagulation of humic substances by means of aluminum salts, Journal American Water Works Association 76/4(1984) 141-150. 6. Edzwald J., Perntsky D., Paramenter W.: Polyaluminum coagulants for drinking water treatment, chemistry and selection, Chemical Water and

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R. Podprocká, D. Bolibruchová and M. Chalupová

Abstract

In Al-Si alloy the iron is the most common impurity and with presence of other elements in alloy creates the intermetallic compounds, which decreases mechanical properties and increases of porosity. The cause of the negative effect of intermetallic particles on the mechanical properties is that it is more easily break off the tension load as the aluminium matrix or small particles of silicon. By adding suitable alloying elements, also known as iron correctors, is possible to reduce this harmful effect. In the article is evaluated influence of manganese on microstructure with performed EDX analysis selected intermetallic phases and tensile test and measurement of length of Al5FeSi phase. For realization experiments was used AlSi7Mg0.3 alloy with increased iron content. Manganese was added in the amount 0.3 wt. %, 0.6 wt. %, 0.8 wt.% and 1,2 wt. %. From performed measurements it has been concluded, that increased amount of manganese, i.e. Mn/Fe ratio, does not have significant influence on mechanical properties AlSi7Mg0.3 alloy in the melted state.

Open access

G. Tęcza and J. Głownia

References [1] Telejko, I. (2004). Cast steel embrittlement within the liquidsolid temperature range. Kraków: Akapit. (in Polish). [2] Kniaginin, G. (1968). Cast austenitic manganese steel. Kraków: PWN. (in Polish). [3] Tęcza, G., Głownia, J., Rąpała, M. & Stańczak, S. (2008). The effect of segregation in heavy-wall Hadfield steel castings. Foundry Journal of the Polish Foundrymen’s Association, (1-2), 10-15. [4] Stradomski, Z. (2001). On the explosive hardening of cast Hadfield steel