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Journal of Materials Science

, Volume 20, Issue 11, pp 4021–4026 | Cite as

Beneficial influence of copper and manganese alloying elements on the mechanical properties of metallic composite materials based on the eutectic Al-5.7% Ni alloy

  • N. Terao
Papers

Abstract

We have developed a new type of metallic composite material based on the binary eutectic Al-5.7 wt% Ni alloy. The structure of the initial alloys prepared by simple casting consists of strong, fine fibres of the Al3Ni phase and a ductile aluminium matrix. These alloys are then transformed into dispersion-hardened materials by isostatic extrusion in which the Al3Ni fibres are broken and dispersed in the ductile matrix. The materials thus prepared present a mechanical strength of the same order as the unidirectionally solidifed eutectic alloy: the tensile strength is nearly 300 MPa at room temperature. We observed in this work that the mechanical strength is remarkably increased by the addition of a small amount of copper or manganese: it attains about 400 MPa by the addition of 2 to 3wt% Cu, and more than 500 MPa by the addition of 3wt% Mn. These alloying elements also produce beneficial effects on the mechanical properties at high temperature.

Keywords

Polymer Copper Mechanical Property Manganese Tensile Strength 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© Chapman and Hall Ltd 1985

Authors and Affiliations

  • N. Terao
    • 1
  1. 1.Laboratory of Physical Metallurgy, Faculty of Applied SciencesCatholic University of LouvainLouvain-la-NeuveBelgium

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