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Home/Reference Data/Binary Phase Diagrams/Al-Cu/eutectic

Eutectic — Al-Cu

Alloy System
Al-Cu
Invariant Point Or Boundary
Eutectic
Component 1 Name
Cu
Component 2 Name
Al
Composition 1 Wt Pct (wt%)
33
Engineering Significance
2XXX Series Wrought Al Alloys (2024: 4.4%Cu; 2014: 4.4%Cu) Designed Below Eutectic for Precipitation Hardening
Phase Alpha
Alpha Al
Phase Beta
Theta CuAl2
Phase Description
Liquid -> Alpha-Al + Theta (CuAl2); Theta Is Intermetallic Compound
Reaction Type
Eutectic
Temperature C (C)
548

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Al-Cu — invariant point or boundary eutectic · engineering significance 2xxx series wrought Al alloys (2024: 4.4%Cu; 2014: 4.4%Cu) designed below… · phase description Liquid -> alpha-Al + theta (CuAl2); theta is intermetallic compound · composition 1 wt pct 33 wt% · reaction type eutectic | Binary Phase Diagrams | Engineering Database