Influence of gating system design on tensile properties of AlSi7Mg0.3 alloy

• Autorzy: Kasala J. , Pernis R. , Čaplovič L'.
• Języki publikacji: EN

Abstrakty

EN

Aluminium-silicon castings are typically produced by gravity casting. Bottom gated systems are usually required if surface turbulence is to be eliminated. Latest research has demonstrated, that for every liquid metal there is critical velocity above which the surface will fold over and entrain itself in the bulk of the metal. Therefore the strength properties the aluminium castings are largely determined by microstructural defects, particularly pores and oxide films which are created by surface turbulence. The purpose of this paper is to investigate tensile properties and microstructure of aluminium alloy in a casted state two different designs of gating system. The first is the usual bottom gating system and the second is novel design of gating system named a vortex-gate introduced by Campbell [1]. The results of the mechanical tests revealed that there is a small improvement in ultimate tensile strength for vortex-gate design of pouring system. The oxide film defects were observed in microstructure of a sample taken from poured casting by using the bottom gated system.

Słowa kluczowe

EN

gating system; vortex gate; oxide defect; ultimate tensile strength; aluminium alloy

PL

układ wlewowy; wada odlewu; wytrzymałość na rozciąganie; stop aluminium

• Wydawca: Komisja Odlewnictwa Polskiej Akademii Nauk Oddział w Katowicach
• Czasopismo: Archives of Foundry Engineering
• Rocznik: 2010
• Tom: Vol. 10, iss. 1 spec.
• Strony: 117--120
• Opis fizyczny: Bibliogr. 16 poz., rys., tab., wykr.

Twórcy

autor

Kasala J.

• Department of Technology and Materials, Alexander Dubček University of Trenčín in Trenčín , Študentská 1, 911 50 Trenčín, Slovak Republic

autor

Pernis R.

• Department of Technology and Materials, Alexander Dubček University of Trenčín in Trenčín , Študentská 1, 911 50 Trenčín, Slovak Republic

autor

Čaplovič L'.

• Faculty of Materials Science an Technology in Trnava, Slovak University of Technology in Bratislava, Paulínska 16, 91724 Trnava, Slovak Republic

Bibliografia

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