X-ray Diffraction Study of a Quasicrystalline Alloy Stable at High Temperature

摘要

Crystalline A1-Cu-Fe-Mg alloy powders were produced by means of rapid solidification.During annealingprocess,the quasicrystalline icosahedral phase formed at about 625°C and was stable until 900°C.Thisquasicrystalline phase is considered to be a stable one.The forming process of this phase was studied in detail.