Fabrication of novel Al–L12-type Al2.7Fe0.3Ti refiners by spark plasma sintering and their refining performance. (21st December 2015)

• Record Type: Journal Article
• Authors: Watanabe, Yoshimi; Hamada, Takayuki; Sato, Hisashi
• Is Part Of: Japanese journal of applied physics. Volume 55:Number 1(2016:Jan.)Supplement
• Publication Date: 2015-12-21
• Subjects: Physics -- Periodicals; 621.05
• DOI: 10.7567/JJAP.55.01AG01
• Languages: English
• ISSNs: 0021-4922

Abstract

Abstract: Grain refinement plays a vital role in cast and wrought aluminum alloys. The grain refiners introduce particles that heterogeneously nucleate the primary alpha-aluminum. It is well known that Al3 Ti particles are commonly used as heterogeneous nucleants for aluminum alloy casting. If a substance with a smaller misfit for aluminum is used as a heterogeneous nucleant, such as L12 intermetallic compounds, it should be possible to achieve a better grain refining performance. In this study, the optimum condition for a grain refiner using Al2.7 Fe0.3 Ti intermetallic compound particles with the L12 structure was investigated.