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Title: Microstructure and mechanical properties of aluminium matrix composites reinforced by Al{sub 62}Cu{sub 25.5}Fe{sub 12.5} melt spun ribbon

Abstract

Aluminium matrix composites containing 15, 30 and 50 vol.% of pulverized Al{sub 62}Cu{sub 25.5}Fe{sub 12.5} (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 β-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 ω-Al{sub 70}Cu{sub 20}Fe{sub 10} phase. Additionally, the Θ-Al{sub 2}Cu phase formed at the α(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. - Highlights: • Al and 15, 30, 50% of pulverized Al{sub 62}Cu{sub 25.5}Fe{sub 12.5} melt spun ribbon were consolidated. • The initial ribbon consisted of the icosahedral i-phase and copper rich β-Al(Cu, Fe). • The i-phase partially transforms to ω-Al{sub 7}Cu{sub 2}Fe phase in all composites. • Increase of microhardness and compressive strengthmore » with content of reinforcement • Ultimate compression strength 545 MPa for 50% of added particles.« less

Authors:
; ; ; ;
Publication Date:
OSTI Identifier:
22587170
Resource Type:
Journal Article
Resource Relation:
Journal Name: Materials Characterization; Journal Volume: 117; Other Information: Copyright (c) 2016 Elsevier Science B.V., Amsterdam, The Netherlands, All rights reserved.; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; 77 NANOSCIENCE AND NANOTECHNOLOGY; ALUMINIUM; COMPRESSION; COMPRESSION STRENGTH; COPPER; HOT PRESSING; INTERMETALLIC COMPOUNDS; MICROHARDNESS; MICROSTRUCTURE; PARTICLES; PRESSURE RANGE MEGA PA 100-1000; TRANSMISSION ELECTRON MICROSCOPY

Citation Formats

Lityńska-Dobrzyńska, Lidia, E-mail: l.litynska@imim.pl, Mitka, Mikołaj, Góral, Anna, Stan-Głowińska, Katarzyna, and Dutkiewicz, Jan. Microstructure and mechanical properties of aluminium matrix composites reinforced by Al{sub 62}Cu{sub 25.5}Fe{sub 12.5} melt spun ribbon. United States: N. p., 2016. Web. doi:10.1016/J.MATCHAR.2016.04.025.
Lityńska-Dobrzyńska, Lidia, E-mail: l.litynska@imim.pl, Mitka, Mikołaj, Góral, Anna, Stan-Głowińska, Katarzyna, & Dutkiewicz, Jan. Microstructure and mechanical properties of aluminium matrix composites reinforced by Al{sub 62}Cu{sub 25.5}Fe{sub 12.5} melt spun ribbon. United States. doi:10.1016/J.MATCHAR.2016.04.025.
Lityńska-Dobrzyńska, Lidia, E-mail: l.litynska@imim.pl, Mitka, Mikołaj, Góral, Anna, Stan-Głowińska, Katarzyna, and Dutkiewicz, Jan. Fri . "Microstructure and mechanical properties of aluminium matrix composites reinforced by Al{sub 62}Cu{sub 25.5}Fe{sub 12.5} melt spun ribbon". United States. doi:10.1016/J.MATCHAR.2016.04.025.
@article{osti_22587170,
title = {Microstructure and mechanical properties of aluminium matrix composites reinforced by Al{sub 62}Cu{sub 25.5}Fe{sub 12.5} melt spun ribbon},
author = {Lityńska-Dobrzyńska, Lidia, E-mail: l.litynska@imim.pl and Mitka, Mikołaj and Góral, Anna and Stan-Głowińska, Katarzyna and Dutkiewicz, Jan},
abstractNote = {Aluminium matrix composites containing 15, 30 and 50 vol.% of pulverized Al{sub 62}Cu{sub 25.5}Fe{sub 12.5} (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 β-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 ω-Al{sub 70}Cu{sub 20}Fe{sub 10} phase. Additionally, the Θ-Al{sub 2}Cu phase formed at the α(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. - Highlights: • Al and 15, 30, 50% of pulverized Al{sub 62}Cu{sub 25.5}Fe{sub 12.5} melt spun ribbon were consolidated. • The initial ribbon consisted of the icosahedral i-phase and copper rich β-Al(Cu, Fe). • The i-phase partially transforms to ω-Al{sub 7}Cu{sub 2}Fe phase in all composites. • Increase of microhardness and compressive strength with content of reinforcement • Ultimate compression strength 545 MPa for 50% of added particles.},
doi = {10.1016/J.MATCHAR.2016.04.025},
journal = {Materials Characterization},
number = ,
volume = 117,
place = {United States},
year = {Fri Jul 15 00:00:00 EDT 2016},
month = {Fri Jul 15 00:00:00 EDT 2016}
}
  • To increase the toughness of a metallic glass with the nominal composition Zr{sub 41.25}Ti{sub 13.75}Cu{sub 12.5}Ni{sub 10}Be{sub 22.5}, it was used as the matrix in continuous fiber composites reinforced with tungsten and 1080 steel wire. The composites were tested in compression and tension experiments. Tungsten reinforcement increased compressive strain to failure by over 900% compared to the unreinforced Zr{sub 41.25}Ti{sub 13.75}Cu{sub 12.5}Ni{sub 10}Be{sub 22.5}. The increase in compressive toughness comes from the fibers restricting shear band propagation, promoting the generation of multiple shear bands and additional fracture surface area. There is direct evidence of viscous flow of the metallic glassmore » matrix within the confines of the shear bands. Samples reinforced with steel had increased tensile strain to failure and energy to break of 13 and 18%, respectively. Tensile toughness increased as a result of ductile fiber delamination, fracture, and fiber pullout.« less
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  • The relationship between the structures and magnetic properties of Sm{sub 5}Fe{sub 17} melt-spun ribbons was studied. The melt-spun ribbons obtained by annealing of amorphous Sm{sub 5}Fe{sub 17} melt-spun ribbon consisted of the Sm{sub 5}Fe{sub 17} phase when annealed at 973 K for 0 h (i.e., when the furnace was immediately turned off after heating) or the Sm{sub 5}Fe{sub 17} phase together with a small amount of the SmFe{sub 12} phase when produced by annealing at 973 K for 1 h. The coercivity of the annealed Sm-Fe melt-spun ribbons was strongly dependent on the annealing conditions. The maximum coercivity of themore » annealed Sm{sub 5}Fe{sub 17} melt-spun ribbons exceeded 36 kOe.« less
  • Rapidly solidified samples of Nd{sub 9.5}Fe{sub 84.5}B{sub 6} with and without 3 at.{percent} TiC were prepared by melt spinning and melt extraction and then annealed in vacuum (3{times}10{sup {minus}6} Torr) at temperatures from 600 to 750{degree}C. For alloys melt spun under similar conditions, the overquenched state was achieved at wheel speeds {gt}10 m/s for the TiC added alloy while {gt}20 m/s was necessary without TiC. The overquenched samples contained a smaller fraction of {alpha}-Fe in smaller grains than the undercooled samples where Fe dendrites formed near the free surface during solidification. These Fe dendrites were not removed by annealing. Inmore » addition, large orientated 2-14-1 grains nucleated on the Fe dendrites. This combination is detrimental to the magnetic properties. The addition of TiC results in improved control of the microstructure over a larger fraction of the ribbon volume enhancing the magnetic properties. {copyright} {ital 1998 American Institute of Physics.}« less
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