The Effect of Plastic Deformation on the Structure of Powder Quasicrystalline Al–Fe–Cr Alloy

The present paper is aimed at studying the effect of compaction by extrusion on the structural features of powder quasicrystalline Al–Fe–Cr alloy. Specifically, we use the powder alluminium alloy Al94Fe3Cr3 with fine-dispersed quasicrystalline particles reinforced by extrusion. We obtain the alloy by applying the water-atomization technique. Using X-ray diffraction analysis, scanning and transmission electron microscopy, we determine that consolidation of powder alloy Al94Fe3Cr3 results in loosing quasicrystalline phase content in а-Al matrix as compared with the initial alloy in the form of powder, which can totally decrease the alloy reinforcement. In addition, the alloy consolidation was conducted by single-axis deformation by extrusion at elevated temperatures (653 K) and high pressure (in the lengthwise and cross directions, notably Pl 1,42 hPa and Pt 3,30 hPa).

Publication year: 
2012
Issue: 
1
УДК: 
621.793.7:678.027.3
С. 94—98. Іл. 4. Табл. 1. Бібліогр.: 12 назв.
References: 

1. Kimura H.M., Sasamori K., Inoue A. Al—Fe Based Bulk Quasicrystalline Alloys with High Elevated Temperature Strength // J. Mater. Res. — 2000. — 15, N 12. — P. 2737—2744.
2. Milman Yu.V., Sirko A.I., Iefimov M.O. et al. High Strength Aluminum Alloys Reinforced by Nanosize Quasicrystalline Particles for Elevated Temperature Application // High Temperature Materials and Processes. — 2006. — 25. — P. 19—27.
3. Galano M., Audebert F., Stone I.C., Cantor B. anoquasicrystalline Al—Fe—Cr-Based Alloys. Part I: Phase transformations // Acta Materialia. — 2009. — 57. — P. 5107—5119.
4. Dubois J.M. New Prospects from Potential Applications of Quasicrystalline Materials // Materials Science and Engineering: A. — 2000. — 294-296. — P. 4—9.
5. Inoue A. Amorphous, Nanoquasicrystalline and Nanocrystalline Alloys in Al-Base Systems // Progress in Mater. Sci. — 1998. — 43. — P. 365—520.
6. Galano M., Audebert F., Stone I.C., Cantor B. Manoquasicrystalline Al—Fe—Cr-Based Alloys. Part II: Mechanical ptoperties // Acta Materialia. — 2009. — 57. — P. 5120—5130.
7. Inoue A., Kimura H. High-Strength Aluminum Alloys Containing Nanoquasicrystalline Particles // Mater. Sci. Eng. — 2000. — A286, N 1. — P. 1—10.
8. Pat. 5432011 US. Aluminum Alloys, Substrates Coated with These Alloys and Their Applications / J.M. Dubois, A. Pianeli. — Publ. 11.07.95.
9. Milman Yu.V. Mechanical Behavior of Nanostructured Aluminum Alloys Containing Qusicrystalline Phase // Materials Science Forum. — 2005. — 482. — P. 77—82.
10. Патент РФ № 2078427. Способ получения порошков алюминия и его сплавов / О.Д. Нейков, В.Г. Калинин // Информ. бюл. — № 12. — 1977.
11. Kiz M.M., Byakova A.V., Sirko A.I. et al. Cold-Spray Coating of Al—Fe—Cr Alloy Reinforced by Nano-Sized Quasicrystalline Particles // Ukr. J. Phys. — 2009. — 54, № 6. — С. 594—600.
12. Cahn J.W., Shechtman D., Gratias D. Indexing of Icosaedral Quasiperiodic Crystals // Mat. Res. Soc. — 1986. — 1. — P. 13—26.

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