Effect of Inhibitor Coating of a Ceramic Mould on the Surface Quality of an AM60 Alloy Cast with Cr and V

• Autorzy: Pisarek B. P. , Rapiejko C. , Święcik R. , Pacyniak T.

Identyfikatory

DOI

10.1515/afe-2015-0059

• Języki publikacji: EN

Abstrakty

EN

The work presents the results of the investigations of the effect of inhibitors coated on the internal walls of a ceramic mould on the quality of the obtained casts made of the AM60 alloy containing additions of chromium and vanadium. In order to reduce the reactivity of magnesium alloy cast by the technology of investment casting with the material of the mould and the ambient atmosphere, solid inhibitors were applied in the form of a mixture of KBF₄ and H₃BO₃ after the stage of mould baking and before the mould’s being filled with the liquid alloy. For the purpose of examining the effect of the inhibitors on the surface quality of the obtained casts, profilometric tests were performed and the basic parameters describing the surface roughness, R_a, R_z and R_m, were determined.

Słowa kluczowe

EN

innovative material; innovative technology; surface roughness; magnesium alloy; solid inhibitor; investment casting

PL

innowacyjny materiał; technologia innowacyjna; chropowatość powierzchni; stop magnezu; odlew precyzyjny

• Wydawca: Komisja Odlewnictwa Polskiej Akademii Nauk Oddział w Katowicach
• Czasopismo: Archives of Foundry Engineering
• Rocznik: 2015
• Tom: Vol. 15, iss. 3
• Strony: 51--56
• Opis fizyczny: Bibliogr. 14 poz., rys., wykr.

Twórcy

autor

Pisarek B. P.

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

autor

Rapiejko C.

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

autor

Święcik R.

• Lodz University of Technology, Department of Production Engineering, 1/15 Stefanowskiego Str., 90-924 Łódź, Poland

autor

Pacyniak T.

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

Bibliografia

• [1] Cingi, C. (2006). Mold-Metal Reactions in Magnesium Investment Castings. PhD Thesis, Helsinki University of Technology, Finland.
• [2] Herrero-Dorca, N., Sarriegi Etxeberria, H., Hurtado, I., Andres U., Rodriguez, P. & Arruebarrena, G. (2011). Analysis of Different Inhibitors for Magnesium Investment Casting. Materials Science and Engineering. 27, 1-7.
• [3] Jafari, H., Idris, M.H. & Ourdjini, A. (2013). A Review of Ceramic Shell Investment Casting of Magnesium Alloys and Mold-Metal Reaction Suppression. Materials and Manufacturing Processes. 28, 843-856.
• [4] Jafari, H., Idris, M.H. & Ourdjini, A. (2014). An alternative approach in ceramic shell investment casting of AZ91D magnesium alloy: In situ melting technique. Journal of Materials Procesing Technology. 214, 988-997.
• [5] Rapiejko, C., Pisarek, B. & Pacyniak, T. (2014). Effect of Cr and V Alloy Additions on the Microstructure and Mechanical Properties of AM60 Magnesium Alloy. Archives of Metallurgy and Materials. 59(2), 771-775.
• [6] Rapiejko, C., Pisarek, B. & Pacyniak, T. (2014). Analysis of AM60 and AZ91 Alloy Crystallisation in Ceramic Moulds by Thermal Derivative Analysis (TDA). Archives of Metallurgy and Materials. 59(4), 1449-1455.
• [7] 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.
• [8] Collective Work (1993). Handbook on the investment casting process. American Foundrymen’s Society, Inc., USA.
• [9] PN-EN ISO 4287:1999. Geometrical Product Specifications - geometric structure of the surface: profile method - Terms, definitions and parameters of the geometrical surface structure.
• [10] Wang, H.Y., Wang, W., Zha, M., Zheng, N., Gu, Z.H., Li, D. & Jiang, Q.C. (2008). Influence of the amount of KBF4 on the morphology of Mg2Si in Mg–5Si alloys. Materials Chemistry and Physics. 108, 353–358.
• [11] Sevim, F., Demir, F., Bilen, M. & Okur, H. (2006). Kinetic analysis of thermal decomposition of boric acid from thermogravimetric data. Korean J. Chem. Eng. 23(5), 734-738.
• [12] PN-H-83105:1985. Castings - Classification and Terminology of defects.
• [13] Luo, A.A. (2013). Magnesium casting technology for structural applications, Journal of Magnesium and Alloys. 1, 2-22.
• [14] Kainer, K.U. (2007). Magnesium. In 7th International Conference on Magnesium Alloys and Their Applications: Wiley-VCH Verlag GmBH&Co. KGaA. Weinheim.