Effect of hot isostatic pressing on cast A357 aluminium alloy with and without SiC particle reinforcement

Anne Zulfia Syahrial,, H. V. Atkinson, H. Jones, S. King

Research output: Contribution to journalArticlepeer-review

18 Citations (Scopus)

Abstract

The effect of Hot Isostatic Pressing (HIPping) treatments on porosity in the aluminium casting alloy A357 and stir-cast A357/15 vol% SiC particulate Metal Matrix Composite has been investigated. Densitometry and image analysis have been used to determine the apparent percentage porosity. Four HIPping temperature profiles have been investigated (103 MPa pressure) and mechanical testing has been carried out by single notch four point bending. The bend strength was increased after HIPping relative to as-received. The optimum HIPping cycle involved HIPping for a short time in the semi-solid region followed by a sustain below the solidus.

Original languageEnglish
Pages (from-to)4305-4310
Number of pages6
JournalJournal of Materials Science
Volume34
Issue number17
DOIs
Publication statusPublished - 1 Jan 1999

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