Influence of the crystallization condition on Al-Si-Cu casting alloys structure

• Autorzy: Dobrzański L. A. , Borek W. , Maniara R.
• Języki publikacji: EN

Abstrakty

EN

Purpose: The purpose of this paper is to show the effect of solidification rate on microstructural features, hardness and microhardness of Al-Si-Cu alloys in as cast state. Design/methodology/approach: The main base of the paper is to compare the properties of aluminium cast alloys of ACAlSi7Cu, ACAlSi7Cu2 and ACAlSi7Cu4. Microstructural features were characterised using light optical microscopy. For rapid determination of the parameters: grains size and Secondary Dendrite Arm Spacing - SDAS were used Leica Q-WinTM computer image analyzer. Findings: Increasing the solidification rate increases refines all microstructural features grain size and SDAS. Increasing the solidification rate have an impact on the hardness and microhardness of investigated aluminium cast alloys. Research limitations/implications: In this paper influence of solidification rate on mechanical properties was described. Further investigations should be concentrate on assessment an influence of silicon contents and solidification rate on microstructural features and mechanical properties. Practical implications: The aim of this work is describe the effect of different solidification conditions on changes of microstructure and mechanical properties of ACAlSi7Cu, ACAlSi7Cu2, ACAlSi7Cu4 alloys used to produce the car engine block. Originality/value: The paper contributes to better understanding and recognition an influence of different solidification condition on microstructure and mechanical properties of aluminium alloys.

Słowa kluczowe

EN

mechanical properties; aluminium alloys; solidification rate; secondary dendrite arm spacing; SDAS

PL

właściwości mechaniczne; stopy aluminium; szybkość krzepnięcia; odległość między ramionami wtórnymi dendrytów; SDAS

• Wydawca: International OCSCO World Press
• Czasopismo: Journal of Achievements in Materials and Manufacturing Engineering
• Rocznik: 2006
• Tom: Vol. 18, nr 1-2
• Strony: 211--214
• Opis fizyczny: Bibliogr. 15 poz., rys., tab., wykr.

Twórcy

autor

Dobrzański L. A.

• Division of Materials Processing Technology and Computer Techniques in Materials Science, Institute of Engineering Materials and Biomaterials, Silesian University of Technology, ul. Konarskiego 18a, 44-100 Gliwice, Poland

autor

Borek W.

• Division of Materials Processing Technology and Computer Techniques in Materials Science, Institute of Engineering Materials and Biomaterials, Silesian University of Technology, ul. Konarskiego 18a, 44-100 Gliwice, Poland

autor

Maniara R.

• Division of Materials Processing Technology and Computer Techniques in Materials Science, Institute of Engineering Materials and Biomaterials, Silesian University of Technology, ul. Konarskiego 18a, 44-100 Gliwice, Poland

Bibliografia

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