Effects of boron on the solidification structure of an AI-Cu-Fe alloy

摘要

Additions of non-transition metals to modify the structure and stability of quasicrystalline phases have mostly been directed toward Al-Mn alloys [1-3]. Since the discovery of a stable icosahedral phase in Al-Cu-Fe alloys [4], work has been performed with this system to study the effects of transition and non-transition metal additions on solidified structures [5]. A recent study has examined the role of B substitutions for Al on the structure and stability of the icosahedral phase in Al-Cu-Fe melt spun ribbons [6], The objective of this letter is to characterize the effect of adding B to Al-Cu-Fe materials prepared by chill casting and high pressure gas atomization.