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Journal of Materials Science

, Volume 26, Issue 8, pp 2093–2099 | Cite as

Influence of lithium on the mechanical properties of metallic composite materials based on the eutectic Al-5.7% Ni alloy

  • N. Terao
Papers

Abstract

The effect of lithium addition was examined on the structure and the mechanical properties of metallic composite materials, prepared from the binary eutectic Al-5.7 wt % Ni alloy by casting and isostatic extrusion. A small amount of lithium addition significantly increases the tensile strength. The beneficial effect of lithium addition is due to solid-solution hardening for materials with low lithium content, i.e. those with less than about 1.7 wt %; in addition, precipitation hardening due to the formation of small spherical particles of δ′-Al3Li phase in the aluminium matrix has an increased effect for materials of higher lithium content.

Keywords

Polymer Precipitation Aluminium Mechanical Property Lithium 
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. 1991

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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