Paper Titles
Deformation Effects in Metal - Hydrogen Systems
p.65
Effect of Mechanical Milling on the Microstructure and Hydrogen Interaction of Both Mm-Ni and MmNi5-Ni Mixtures
p.72
Effect of the Organoclay Preparation on the Extent of the Intercalation/Exfoliation and the Barrier Properties in Polyamide-6/Montmorillonite Nanocomposites
p.78
Novel Fabrication Method of Nanofluid Having Good Roundness and High Suspension Stability
p.85
Hot Extrusion of Nanostructured Al Alloy Powder: Extrusion Ratio and Temperature Effect on the Microstructure and Mechanical Properties
p.91
Processing and Simulation for Consolidation of Nanostructured Al-Cu Powder Alloys
p.97
Rapidly Solidified Al-6Si-3Cu Alloy
p.103
Nanocrystallization Kinetics of Amorphous Fe-Based Multicomponent Alloy by Non-Isothermal Analysis
p.109
Electrolytic Manganese Dioxide Nucleation and Growth on Titanium Substrates
p.114

Hot Extrusion of Nanostructured Al Alloy Powder: Extrusion Ratio and Temperature Effect on the Microstructure and Mechanical Properties

Article Preview

Abstract:

A nanostructured aluminium alloy powder, prepared by rapid solidification via gas atomization, was consolidated into bulk material under various processing conditions via hot extrusion. The microstructure modifications and mechanical properties of the consolidated alloys as a function of the extrusion conditions were investigated. The increase in the extrusion-load with the increase of extrusion-rate and decrease of temperature are shown and discussed in association with the modification in the microstructures. The differences in mechanical properties measured by compressive tests are also discussed in association with the extrusion parameters. Furthermore, suggestions are given for rationalising the extrusion ratio and temperature conditions for the consolidation of nanostructured aluminium alloy powders via hot extrusion.

You might also be interested in these eBooks
Metastable and Nanostructured Materials III View Preview

Info:

Periodical:

Materials Science Forum (Volume 570)

Pages:

91-96

DOI:

https://doi.org/10.4028/www.scientific.net/MSF.570.91

Citation:

Cite this paper

Online since:

February 2008

Authors:

M.M. Peres, J.B. Fogagnolo, Fernando Audebert, F. Saporiti, Alberto Moreira Jorge, Claudio Shyinti Kiminami, Walter José Botta Filho, Claudemiro Bolfarini

Export:

RIS, BibTeX

Price:

Permissions CCC:

Request Permissions

Permissions PLS:

Request Permissions

Сopyright:

© 2008 Trans Tech Publications Ltd. All Rights Reserved

Share:

Citation:

References

[1] - J. B. Fogagnolo, M. H. Robert, E. M. Ruiz-Navas and M. Torralba, Journal of Materials Science , 2002, 37, 4603 - 4607.

DOI: 10.1023/a:1020648316319

Google Scholar

[2] - L. Ma, T. F. Zahrah, R. Fields - Processing And Simulation Of Consolidation Of Amorphous Aluminum-Based Powder Material, in: Proceedings of IMEC'03, 2003 ASME Intern. Mech. Eng. Cong., Washington, D.C., Nov. 15-21, (2003).

DOI: 10.1115/imece2003-41647

Google Scholar

[3] - M.D. Salvador, V. Amigó, N. Martinez, D.J. Busquets, Journal of Materials Processing Technology, 2003, 143-144, 605-611.

DOI: 10.1016/s0924-0136(03)00440-0

Google Scholar

[4] - C. Suryanarayana: Int. Mater. Rev., 1995, 40, (2), 41.

Google Scholar

[5] - L. Hu, Z. Li, and E. Wang, Powder Metallurgy 1999 Vol. 42 No. 2 153.

Google Scholar

[6] - K. Ohuchi And H. J. Takahash: Bull. Jpn Inst. Met., 1983, 47, ( 3), 258.

Google Scholar

[7] - N. Inoue And M. Nishara: Hydrostatic Extrusion - Theory And Application,; 1985, Oxford, Elsevier.

Google Scholar

[8] - Z. Li Et Al.: Chin. J. Nonferrous Met., 1995, 5, ( 4), 102.

Google Scholar

[9] - A.F. Castle and T. Sheppard, Hot Working Theory Applied to Extrusion of Some Aluminum Alloys, Met Technol., 1976, 3 (10), (1976).

Google Scholar