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Delta-Phase — Cu-Sn

Name: Binary Phase Diagrams — Cu-Sn: invariant point or boundary delta_phase · engineering significance Delta phase makes high-tin bronzes (>20%Sn) brittle; bell metal (78Cu-22Sn)… · phase description Delta eutectoid reaction: beta -> alpha + delta at 586°C; delta is hard brittle… · composition 1 wt pct 32.5 wt% · phase beta delta
Creator: Engineering Database

Alloy System: Cu-Sn
Invariant Point Or Boundary: Delta Phase
Component 1 Name: Sn
Component 2 Name: Cu
Composition 1 Wt Pct (wt%): 32.5
Engineering Significance: Delta Phase Makes High-Tin Bronzes (>20%Sn) brittle; Bell Metal (78Cu-22Sn) Exploits This for Hardness
Phase Alpha: Alpha Fcc
Phase Beta: Delta
Phase Description: Delta Eutectoid reaction: Beta -> Alpha + Delta at 586°C; Delta Is Hard Brittle Intermetallic (Cu31Sn8)
Reaction Type: Phase Boundary
Temperature C (C): 586

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Cu-Sn — invariant point or boundary delta_phase · engineering significance Delta phase makes high-tin bronzes (>20%Sn) brittle; bell metal (78Cu-22Sn)… · phase description Delta eutectoid reaction: beta -> alpha + delta at 586°C; delta is hard brittle… · composition 1 wt pct 32.5 wt% · phase beta delta | Binary Phase Diagrams | Engineering Database