Liquid segregation behaviour of a semi-solid squeeze cast A356 aluminium cup-shaped part. Issue 18 (12th December 2017)

• Record Type: Journal Article
• Authors: Seiyed Beigi, Mir Taher; Niroumand, Behzad
• Is Part Of: Materials science and technology. Volume 33:Issue 18(2017)
• Page Start: 2203
• Page End: 2211
• Publication Date: 2017-12-12
• Subjects: Semi-solid rheocasting -- A356 aluminium alloy -- squeeze casting -- liquid segregation -- microstructure; Materials science -- Periodicals; Microstructure -- Periodicals; Metallurgy -- Periodicals; 620.1105
• DOI: 10.1080/02670836.2017.1374498
• Languages: English
• ISSNs: 0267-0836

Abstract

ABSTRACT: In this study, the effects of pouring temperature (solid fraction of primary particles) on the structure and liquid segregation behaviour of a cup-shaped semi-solid rheocast processed casting made from the A356 aluminium alloy were investigated. Results showed that the solid fraction of primary particles at the bottom of the castings was greater than in other parts of the castings, and the highest liquid segregation occurred in the mid-height (wall) of the castings. Liquid segregation was increased with an increase in the initial solid fraction of primary particles. The critical solid fraction at pouring for minimum liquid segregation was found to be approximately 25%. This paper is part of a thematic issue on Light Alloys.