Microstructure and mechanical properties of aluminium matrix composites reinforced by Al62Cu25.5Fe12.5 melt spun ribbon

被引：16
作者：
Litynska-Dobrzynska, Lidia [1 ]
Mitka, Mikolaj [1 ]
Goral, Anna [1 ]
Stan-Glowinska, Katarzyna [1 ]
Dutkiewicz, Jan [1 ]
机构：
[1] Polish Acad Sci, Inst Met & Mat Sci, 25 Reymonta St, PL-30059 Krakow, Poland
来源：
MATERIALS CHARACTERIZATION | 2016年 / 117卷
关键词：
Al matrix composite; Al-Cu-Fe; Melt spun ribbon; Quasicrystal; FE QUASI-CRYSTALLINE; AL; ALLOYS; PARTICLES; PHASES;
D O I：
10.1016/j.matchar.2016.04.025
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
Aluminium matrix composites containing 15, 30 and 50 vol.% of pulverized Al62Cu25.5Fe12.5 (in at.%) melt spun ribbons have been prepared by a vacuum hot pressing (T = 673 K, P = 600 MPa). The microstructure of the initial ribbon and the composites was investigated using X-ray, scanning and transmission electron microscopy. In the as-spun ribbon the quasicrystalline icosahedral phase (i-phase) coexisted with the cubic copper rich beta-Al(Cu, Fe) intermetallic compound. The phase composition of Al-Cu-Fe particles changed after consolidation process and the i-phase transformed partially to the omega-Al70Cu20Fe10 phase. Additionally, the Theta-Al2Cu phase formed at the alpha(Al)/Al-Cu-Fe particle interfaces. With an increase in volume fraction of the reinforcement the hardness of the composites increased up to HV = 180 for the highest amount of added particles. The ultimate compression strength of the same sample reached the value of 545 MPa. (C) 2016 Elsevier Inc. All rights reserved.
引用
收藏
页码：127 / 133
页数：7
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