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Abstract:

Pure Al, Alumix 13 (Al-4.5. wt.% Cu 0.5. Mg 0.2 Si) powders and Alumix13 reinforced with 15. wt.% Saffil short fibers were compacted up to 250-386. MPa in an axial die to study their compacting behavior. The final relative densities D were higher than 0.95 for all unreinforced powders and 0.86 for the composite. Different micromechanical and phenomenological models were used to fit density-pressure relations. Arzt model describes the powder compaction with good agreement up to D ~ 0.85. Kawakita equation results as a best linear fit for all tests, but its compressibility parameter b is not in agreement with the hardening behavior of the composite. Panelli and Ambrosio equation could describe the data fairly well qualitatively for all compactions tests, however, over a limited pressure range. Finally, Konopicky relationship turned out to be very useful and fitted the densification data of all three materials quite well. Its slope from linear P vs. ln (1/(1 - D)) plots, is related to the yield stress and characterizes the work hardening developed during plastic deformation while the density was increased. Microhardness values increase with the compacting pressure and such tendency agrees with the rising values of yield stresses, obtained by Konopicky. © 2010 Elsevier B.V.

Registro:

Documento: Artículo
Título:Densification of Al powder and Al-Cu matrix composite (reinforced with 15% Saffil short fibres) during axial cold compaction
Autor:Moreno, M.F.; González Oliver, C.J.R.
Filiación:Centro Atómico Bariloche, Av. E. Bustillo 9500, 8400 S.C. de Bariloche (RN), Argentina
C.O.N.IC.E.T., Av. Rivadavia 1917, Capital Federal, Argentina
Palabras clave:Aluminum powder; Ceramic short fibers; Densification behavior; Metal matrix composites; Plastic cold compaction; Al powder; Aluminum powders; Ceramic short fibers; Cold compaction; Compacting behavior; Compacting pressure; Compressibility parameters; Cu matrix composites; Densification behavior; Hardening behavior; Kawakita equation; Metal matrix composites; Micro-mechanical; Phenomenological models; Powder compactions; Pressure ranges; Pure Al; Relative density; Saffil short fibers; Short fibre; Work hardening; Aluminum; Aluminum powder metallurgy; Behavioral research; Ceramic materials; Ceramic matrix composites; Compaction; Densification; Fibers; Matrix algebra; Plastics; Polymer matrix composites; Powder metals; Strain hardening; Yield stress; Metallic matrix composites; aluminum; copper; article; chemical analysis; chemical composition; chemical reaction; chemical structure; composite material; controlled study; density; hardness; low temperature; mathematical model; mechanical stress; particle size; powder
Año:2011
Volumen:206
Número:3
Página de inicio:297
Página de fin:305
DOI: http://dx.doi.org/10.1016/j.powtec.2010.09.034
Título revista:Powder Technology
Título revista abreviado:Powder Technol.
ISSN:00325910
CODEN:POTEB
CAS:aluminum, 7429-90-5; copper, 15158-11-9, 7440-50-8
Registro:https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00325910_v206_n3_p297_Moreno

Referencias:

  • Torralba, J.M., da Costa, C.E., Velasco, F., P/M aluminum matrix composites: an overview (2003) J. Mater. Process. Technol., 133 (1-2), pp. 203-206
  • Moreno, M.F., Urretavizcaya, G., González Oliver, C., Hot pressing densification of Al (Al-Cu) short Al2O3 fibre mixtures (2000) Powder Metall., 43 (1), pp. 83-88
  • Arzt, E., The influence of an increasing particle coordination on the densification of spherical powder (1982) Acta Metall., 30, pp. 1883-1890
  • Fischmeister, H.F., Artz, E., Densification by particle deformation (1983) Powder Metall., 20, pp. 82-88. , (2) (26)
  • Kawakita, K., Lüdde, K., Some considerations on powder compression equations (1971) Powder Technol., 4, pp. 61-68
  • Panelli, R., Ambrosio Filho, F., A study of a new phenomenological compacting equation (2001) Powder Technol., 114, pp. 255-261
  • Shapiro, I., Kolthoff, I.M., Studies on the aging of precipitates and coprecipitation. XXXVIII. The compressibility of silver bromide powders (1947) J. Phys. Colloid Chem., 51, pp. 483-493
  • Torre, C., Theorie und Verhalten der zusammengepreβten Pulver, Berg-Hüttenmänn (1948) Monatsh. Montan. Hochschule Leoben, 93, pp. 62-67
  • Hewitt, R.L., Wallace, W., Malherbe, M.C., The effects of strain-hardening in powder compaction (1973) Powder Metall., 16 (31), pp. 88-106
  • ter Haar, J.H., Duszczyk, J., Cold compaction of an aluminium/short fibre alumina powder composite (1992) J. Mater. Sci., 27 (23), pp. 6495-6505
  • Razavi Hesabi, Z., Hafizpour, H.R., Simchi, A., An investigation on the compressibility of aluminum/nano-alumina composite powder prepared by blending and mechanical milling (2007) Mater. Sci. Eng., (25), pp. 89-98
  • Thompson, R.A., Mechanics Powder Pressing: I, Model for powder densification (1981) Ceram. Bull., 60 (2), pp. 237-243
  • Moreno, M.F.G., (2009), Sinterización e inyección metálica en compuestos de matriz metálica (MMC) de Al, Al-Cu y Al-Si: síntesis y comportamiento térmico y mecánico, PhD Thesis, Instituto Balseiro, Universidad Nacional de Cuyo, C.N.E.A., March; Eksi, A., Yuzbasioglu, A.H., Effect of sintering and pressing parameters on the densification of cold isostatically pressed Al and Fe powders (2007) Mater. Des., 28 (4), pp. 1364-1368
  • Morales, R., Seetharaman, S., Agarwala, V., Mechanical and structural characterization of uniaxially cold-pressed Fe2Mo powders (2002) J. Mater. Res., 17 (8), pp. 1954-1959
  • Adams, M.J., McKeown, R., Micromechanical analysis of the pressure-volume relationships for powders under confined uniaxial compression (1996) Powder Technol., 88 (2), pp. 155-163
  • Kuhn, H.A., Downey, C.L., Deformation characteristics and plasticity theory of sintered powder materials (1971) Int. J. Powder Metall, 7 (1), pp. 15-25
  • Shima, S., Oyane, M., Plasticity theory for porous metals (1976) Int. J. Mech. Sci., 18, pp. 285-291
  • Selvakumar, N., Narayanasamy, R., Phenomenon of strain hardening behaviour of sintered aluminium preforms during cold axial forming (2003) J. Mater. Process. Technol., 142, pp. 347-354
  • Rodríguez, J.A., Gallardo, J.M., Herrera, E.J., Structure and properties of attrition-milled aluminium powder (1997) J. Mater. Sci., 32, pp. 3535-3539
  • James, P.J., Particle deformation during cold isostatic pressing of metal powders (1977) Powder Metall., 20 (4), pp. 199-204
  • Cáceres, C.H., Poole, W.J., Hardness and flow strength in particulate metal matrix composites (2002) Mater. Sci. Eng., 402 A, pp. 311-317
  • Dominguez, O., Phillippot, M., Bigot, J., The relationship between consolidation behavior and particle size in Fe nanometric powders (1995) Scr. Metall. Mater., 32 (1), pp. 13-17
  • Sridhar, I., Fleck, N.A., Yield behaviour of cold compacted composite powders (2000) Acta Mater., 48, pp. 3341-3352

Citas:

---------- APA ----------
Moreno, M.F. & González Oliver, C.J.R. (2011) . Densification of Al powder and Al-Cu matrix composite (reinforced with 15% Saffil short fibres) during axial cold compaction. Powder Technology, 206(3), 297-305.
http://dx.doi.org/10.1016/j.powtec.2010.09.034
---------- CHICAGO ----------
Moreno, M.F., González Oliver, C.J.R. "Densification of Al powder and Al-Cu matrix composite (reinforced with 15% Saffil short fibres) during axial cold compaction" . Powder Technology 206, no. 3 (2011) : 297-305.
http://dx.doi.org/10.1016/j.powtec.2010.09.034
---------- MLA ----------
Moreno, M.F., González Oliver, C.J.R. "Densification of Al powder and Al-Cu matrix composite (reinforced with 15% Saffil short fibres) during axial cold compaction" . Powder Technology, vol. 206, no. 3, 2011, pp. 297-305.
http://dx.doi.org/10.1016/j.powtec.2010.09.034
---------- VANCOUVER ----------
Moreno, M.F., González Oliver, C.J.R. Densification of Al powder and Al-Cu matrix composite (reinforced with 15% Saffil short fibres) during axial cold compaction. Powder Technol. 2011;206(3):297-305.
http://dx.doi.org/10.1016/j.powtec.2010.09.034