The Effect of Ni Additions on the Microstructure and Castability of Low Si Added Al Casting Alloys. (2015)

• Record Type: Journal Article
• Authors: Cho, Y.H.; Kim, H.W.; Kim, W.; Jo, D.A.; Lee, J.M.
• Is Part Of: Materials today. Volume 2:Number 10(2015)Part A
• Page Start: 4924
• Page End: 4930
• Publication Date: 2015
• Subjects: Low Si added Al casting alloys -- nickel addition -- microstructure -- fluidity -- hot tearing; Materials science -- Congresses -- Periodicals; 620.1
• DOI: 10.1016/j.matpr.2015.10.058
• Languages: English
• ISSNs: 2214-7853

Abstract

Abstract: The addition of Ni up to 1 wt.% was made to an Al-1Si-1Fe alloy and its influence on the microstructure and castability was investigated. Fe-rich intermetallics present in the Al-1Si-1Fe alloy were dramatically refined by the Ni addition in excess of 0.5 wt.%, changing the morphology from a plate-like to a fine fibrous form. The alloys exhibit the maximum fluidity length at 0.5 wt.%Ni whilst hot tearing tendencies increased when increasing the Ni contents.