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Mechanical Behaviors

Mechanical Behaviors. Of various Cu-Al Alloys. Addition of Cu in Al. Cu-Al Alloys typically contain 2 to 10% copper. The copper allows the material to generally have the following : facilitates precipitation hardening increase in strength Reduce ductility Resist corrosion.

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Mechanical Behaviors

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  1. Mechanical Behaviors Of various Cu-Al Alloys

  2. Addition of Cu in Al • Cu-Al Alloys typically contain 2 to 10% copper. The copper allows the material to generally have the following: • facilitates precipitation hardening • increase in strength • Reduce ductility • Resist corrosion

  3. Effect of 2nd Phase precipitate • Tensile strength increases first, then decreases due to appearance of θ' pptn. Phases.

  4. Anisotropy effect on Stress-Strain Curve • A single crystal and a polycrystalline Al-Cu alloy, have different stress strain curve. • Crystal anisotropy was reduced by the introduction of the precipitates in Al-Cu singe crystals

  5. Tensile strength and ductility

  6. Strength Comparison • Yield Strength

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