Effect of Casting Die Cooling on Solidification Process and Microstructure of Hypereutectic Al-Si Alloy

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Abstract

The work is a continuation of research concerning the influence of intensive cooling of permanent mold in order to increase the casting efficiency of aluminium alloys using the multipoint water mist cooling system. The paper presents results of investigation of crystallization process and microstructure of synthetic hypereutectic alloys: AlSi15 and AlSi19. Casts were made in permanent mold cooled with water mist stream. The study was conducted for unmodified silumins on the research station allowing the cooling of the special permanent probe using a program of computer control. Furthermore the study used a thermal imaging camera to analyze the solidification process of hypereutectic silumins. The study demonstrated that the use of mold cooled with water mist stream allows in wide range the formation of the microstructure of hypereutectic silumins. It leads to higher homogeneity of microstructure and refinement of crystallizing phases and also it increases subsequently the mechanical properties of casting.

[1] Władysiak, R. (2007). Effective Intensification Method of Die Casting Process of Silumins. Archives of Metallurgy and Materials. 52(3), 529-534.

[2] Władysiak, R. (2008). Water Mist Effect on Cooling Range and Efficiency of Casting Die. Archives of Foundry Engineering. 8(4), 213-218.

[3] Władysiak, R. (2010). Effect of Water Mist on Cooling Process of Casting Die and Microstructure of AlSi11 Alloy. Archives of Metallurgy and Materials. 55(3), 939-946.

[4] Władysiak, R. (2013). Computer Control the Cooling Process in Permanent Mold Casting of Al-Si Alloy. Archives of Metallurgy and Materials. 58(3), 977-980.

[5] Fraś, E. (1992). Crystallization of Metals and Alloys. PWN, Warsaw (Polish).

[6] 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.

[7] 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.

[8] 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.

[9] Władysiak, R. (2013). Examining the Possibilities of Analyzing the Solidification Process of Al-Si Alloy with the Infrared Camera. Archives of Foundry Engineering. 16(1), 89-94.

Archives of Foundry Engineering

The Journal of Polish Academy of Sciences

Journal Information


CiteScore 2016: 0.42

SCImago Journal Rank (SJR) 2016: 0.192
Source Normalized Impact per Paper (SNIP) 2016: 0.316

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