Nano- particulates containing ductile magnesium nanocomposites were synthesized using blend-press-sinter powder metallurgy technique followed by hot extrusion. Microstructural characterization of the nanocomposite samples showed fairly uniform reinforcement distribution, good reinforcement-matrix interfacial integrity, significant grain refinement of magnesium matrix with increasing presence of reinforcement, and the presence of minimal porosity. Mechanical properties characterization revealed that the presence of nano- reinforcement leads to marginal increases in hardness, 0.2% yield strength and ultimate tensile strength, but a significant increase in ductility and work of fracture of magnesium. The fracture mode was changed from brittle for pure Mg to mix ductile and intergranular in the case of nanocomposites.
Issue Section:
Technical Papers
1.
Kainer
, K. U.
, 2003, Die-Casting Magnesium, Magnesium-Alloys and Technologies
, Wiley-VCH Verlag GmbH & Co.
, Weinham, Germany.2.
Magers
, D.
, and Brussels
, J.
, 1998, “Global Outlook on the Use of Magnesium Die-Casting in Automotive Applications
,” in Proceeding of Conference on Magnesium Alloys and Their Applications
, B. L.
Mordike
, K. U.
Kainer
, eds., Werkstoff-Informationsge-Sellschaft
, Wolfsburg, Germany, pp. 105
–112
.3.
Lloyd
, D. J.
, 1994, “Particle Reinforced Aluminum and Magnesium Matrix Composites
,” Int. Mater. Rev.
0950-6608, 39
(1
), pp. 1
–23
.4.
Saravanan
, R. A.
, and Surappa
, M. K.
, 2000, “Fabrication and Characterization of Pure Magnesium-30 vol.% SiCP Particle Composite
,” Mater. Sci. Eng., A
0921-5093, 276
, pp. 108
–116
.5.
Gupta
, M.
, Lai
, M. O.
, and Saravanaranganathan
, D.
, 2000, “Synthesis, Microstructure and Properties Characterization of Disintegrated Melt Deposited Mg∕SiC Composites
,” J. Mater. Sci.
0022-2461, 35
, pp. 2155
–2165
.6.
Han
, B. Q.
, and Dunand
, D. C.
, 2000, “Microstructure and Mechanical Properties of Magnesium Containing High Volume Fractions of Yttria Dispersoids
,” Mater. Sci. Eng., A
0921-5093, 277
, pp. 297
–304
.7.
Hassan
, S. F.
, and Gupta
, M.
, 2002, “Development of High Strength Magnesium Based Composites Using Elemental Nickel Particulates as Reinforcement
,” J. Mater. Sci.
0022-2461, 37
, pp. 2467
–2474
.8.
Garces
, G.
, Rodríguez
, M.
, Perez
, P.
, and Adeva
, P.
, 2006, “Effect of Volume Fraction and Particle Size on the Microstructure and Plastic Deformation of Mg-Y2O3 Composites
,” Mater. Sci. Eng., A
0921-5093, 419
, pp. 357
–364
.9.
Hassan
, S. F.
, and Gupta
, M.
, 2002, “Development of a Ductile Magnesium Composite Materials Using Titanium as Reinforcement
,” J. Alloys Compd.
0925-8388, 345
(1–2
), pp. 246
–251
.10.
Unverricht
, R.
, Peitz
, V.
, Riehemann
, W.
, and Ferkel
, H.
, 1998, “Dispersion-Strengthening of Magnesium by Nanoscaled Ceramic Powder
,” Conference on Magnesium Alloys and Their Applications, April 28–30, Wolfsburg, Germany, pp. 327
–332
.11.
Singh
, A.
, Nakamura
, M.
, Watanabe
, M.
, Kato
, A.
, and Tsai
, A. P.
, 2003, “Quasicrystal Strengthened Mg-Zn-Y Alloys by Extrusion
,” Scr. Mater.
1359-6462, 49
, pp. 417
–422
.12.
Hassan
, S. F.
, and Gupta
, M.
, 2004, “Development of High-Performance Magnesium Nano-Composites Using Solidification Processing Route
,” Mater. Sci. Technol.
0267-0836, 20
, pp. 1383
–1388
.13.
Hassan
, S. F.
, and Gupta
, M.
, 2005, “Development of High Performance Magnesium Nano-Composites Using nano-Al2O3 as Reinforcement
,” Mater. Sci. Eng., A
0921-5093, 392
, pp. 163
–168
.14.
Hassan
, S. F.
, and Gupta
, M.
, 2006, “Effect of Different Types of Nano-size Oxide Particulates on Microstructural and Mechanical Properties of Elemental Mg
,” J. Mater. Sci.
0022-2461, 41
, pp. 2229
–2236
.15.
Reed-Hill
, R. E.
, 1964, Physical Metallurgy Principles
, 2nd ed. D. Van Nostrand Company
, New York.16.
Eustathopoulos
, N.
, Nicholas
, M. G.
, and Drevet
, B.
, 1999, Wettability at High Temperatures
, Pergamon Materials Series
, Vol. 3
, Pergamon Press
, London.17.
Gilchrist
, J. D.
, 1989, Extraction Metallurgy
, 3rd ed. Pergamon Press
, London.18.
Tan
, M. J.
, and Zhang
, X.
, 1998, “Powder Metal Matrix Composites: Selection and Processing
,” Mater. Sci. Eng., A
0921-5093, 244
, pp. 80
–85
.19.
Shewmon
, P. G.
, 1969, Transformation in Metals
, McGraw-Hill Book Company
, New York.20.
Hassold
, G. N.
, Holm
, E. A.
, and Srolovitz
, D. J.
, 1990, “Effects of Particle Size on Inhibited Grain Growth
,” Scr. Metall. Mater.
0956-716X, 24
, pp. 101
–106
.21.
German
, R. M.
, Powder Metallurgy Science
2nd ed., Metal Powder Industries Federation
, Princeton, NJ.22.
Murr
, L. E.
, 1975, Interfacial Phenomena in Metals and Alloys
, Addison-Wesley
, MA.23.
Naser
, J.
, Riehemann
, W.
, and Ferkel
, H.
, 1997, “Dispersion Hardening of Metals by Nanoscaled Ceramic Powder
,” Mater. Sci. Eng., A
0921-5093, 234–236
, pp. 467
–469
.24.
Bauccio
, M.
, 1993, ASM Metal Reference Book
, 3rd ed. ASM International
, Materials Park, OH.25.
Touloukian
, Y. S.
, 1967, Thermophysical Properties of High Temperature Solid Materials
, Purdue University
, West Latayette IN.26.
Ashby
, M. F.
, and Jones
, D. R. H.
, 1996, Engineering Materials I
, Butterworth-Heinemann
, Oxford.27.
Gupta
, M.
, and Srivatsan
, T. S.
, 1999, “Microstructure and Grain Growth Behavior of an Aluminum Alloy Metal Matrix Composite Processed by Disintegrated Melt Deposition
,” J. Mater. Eng. Perform.
1059-9495, 8
(4
), pp. 473
–478
.28.
Cahn
, R. W.
, 1970, Physical Metallurgy
, North-Holland Publishing Company
, Amsterdam.29.
Wua
, F.
, Zhua
, J.
, Chen
, Y.
, and Zhang
, G.
, 2000, “The Effects of Processing on the Microstructures and Properties of Gr∕Mg Composites
,” Mater. Sci. Eng., A
0921-5093, 277
, pp. 143
–147
.30.
Bocchini
, G. F.
, 1986, “The Influence of Porosity on the Characteristics of Sintered Materials
,” Int. J. Powder Metall.
0020-7535, 22
(3
), pp. 185
–202
.31.
Yang
, W.
, and Lee
, W. B.
, 1993, Mesoplasticity and its Applications
, Springer-Verlag
, Berlin.32.
Pérez
, P.
, Garcés
, G.
, and Adeva
, P.
, 2004, “Mechanical Properties of a Mg-10 (vol.%)Ti Composite
,” Compos. Sci. Technol.
0266-3538, 64
(1
), pp. 145
–151
.33.
Koike
, J.
, Kobayashi
, T.
, Mukai
, T.
, Watanabe
, H.
, Suzuki
, M.
, Maruyama
, K.
, and Higashi
, K.
, 2003, “The Activity of Non-basal Slip Systems and Dynamic Recovery at Room Temperature in Fine-Grained AZ31B Magnesium Alloys
,” Acta Mater.
1359-6454, 51
, pp. 2055
–2065
.Copyright © 2007
by American Society of Mechanical Engineers
You do not currently have access to this content.
