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Effect of titanium on the structure and mechanical properties of Cu-Al-Ti alloys

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Abstract

The structure and mechanical properties of Cu10 wt% Al base alloys with 0–2.5 wt% Ti additions were investigated using transmission electron microscopy, optical microscopy and tensile tests. Addition of titanium has a decreasing effect on the grain size after quenching fromα + β region and causes significant strengthening of alloys. Alloy containing 1 wt%Ti quenched from 900° C shows mixture ofα, retainedβ (DO3), disorderedβ′ (3R) and orderedβ′ 1 (18R) martensites. Alloy with 2.5 wt% Ti addition after quenching containsα, retainedβ (DO3), ordered T1 phase of L21 superlattice and orderedβ′ 1 martensite with either R18 or L10 structure indicating different stacking of ordered planes as the effect of titanium addition.

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Dutkiewicz, J., Morgiel, J. & Salawa, J. Effect of titanium on the structure and mechanical properties of Cu-Al-Ti alloys. J Mater Sci 19, 24–30 (1984). https://doi.org/10.1007/BF00552990

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Keywords

  • Polymer
  • Grain Size
  • Microscopy
  • Electron Microscopy
  • Titanium