Alloy Phase Diagram — Binary Eutectic Simulator

⚙️ Binary Phase Diagram

A binary eutectic phase diagram maps which phase(s) — liquid, α-solid, β-solid — are stable at each composition and temperature. Drag the state point to explore.

🔩 Alloy system

🎛 State Point

Composition x_B (wt%) 50 Temperature (°C) 800

🔭 View

📐 Phase Analysis

Phase region

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f_liquid

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f_alpha

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f_beta

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ℹ️ Physics

The lever rule gives the fraction of each phase in a two-phase region. For a tie line from x_α to x_β at overall composition x:
f_β = (x − x_α) / (x_β − x_α)

The eutectic point is the lowest-melting composition at which liquid freezes into two solids simultaneously. Below it: fully solid α+β mixture.