Hot tear susceptibility of Al-Mg-Si alloys with varying iron contents

Elizabeth Sweet, Mark Alan Easton, John A Taylor, Cameron Davidson, Liming Lu, Malcolm James Couper, David Henry StJohn

Research output: Chapter in Book/Report/Conference proceedingConference PaperOtherpeer-review

2 Citations (Scopus)

Abstract

Hot tear susceptibility in a cast 0.53Si-0.33Mg-xFe 6060 aluminum alloy was investigated using the CAST Hot Tear rig, designed to simulate hot tearing in DC casting. The rig has two cast bars, one that is used to measure the load response and one which is fixed at both ends to restrain thermal contraction so that hot tearing could be observed if it occurred. The iron ( Fe) content, ranging from 0.02-0.5wt pet, was seen to have a major influence on the load response during solidification and the tear rating of these alloys. The findings are related to the influence of Fe content on the morphology, prevalence and precipitation sequence of the beta-Al5FeSi and alpha-AlFeSi Fe-containing intermetallic phases. Observations made of hot tear fracture surfaces show that these phases may play distinctly different roles within the mechanism of hot tearing in these alloys.
Original languageEnglish
Title of host publicationTMS 2012 141st Annual Meeting and Exhibition Supplemental Proceedings
EditorsM Jolly, B Thomas
Place of PublicationWarrendale PA USA
PublisherThe Minerals, Metals & Materials Society
Pages275 - 282
Number of pages8
Volume2
ISBN (Print)9781118357002
DOIs
Publication statusPublished - 2012
EventThe Minerals, Metals & Materials Society Annual Meeting and Exhibition 2012 - Orlando, United States of America
Duration: 11 Mar 201215 Mar 2012
Conference number: 141st
http://www.tms.org/meetings/annual-12/Am12home.aspx

Conference

ConferenceThe Minerals, Metals & Materials Society Annual Meeting and Exhibition 2012
Abbreviated titleTMS Annual 2012
CountryUnited States of America
CityOrlando
Period11/03/1215/03/12
Internet address

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