NiTiCu is a copper-modified nickel-titanium shape memory alloy that combines the reversible phase transformation behavior of NiTi with improved thermal stability from copper alloying. The addition of copper narrows the thermal hysteresis and raises transition temperatures, making this alloy useful for applications requiring precise actuation within constrained temperature windows or where repeatability across thermal cycles is critical. Unlike binary NiTi, the ternary composition offers better control over the austenite-finish and martensite-start temperatures, reducing energy losses and improving cycling durability in temperature-sensitive systems.
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1 interactive curve for this material
Stress-strain, S-N fatigue and environmental knockdown curves are free with an account.
Create free account| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Elongation at Break(εf) | 15.00 | - | — | ||
Recovery Strain(ε_rec) | 5.000 | - | — | ||
Stress–Strain Curve(σ–ε) | Curve (9 pts) | ksi | 37°C | ||
Superelastic Plateau Stress(σ_SE) | 55.11 | ksi | — | ||
Ultimate Tensile Strength(σUTS) | 101.5 | ksi | — | ||
Young's Modulus(E) | 3,625.9 | ksi | notes |
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Austenite Finish Temperature (Af)(Af) | 121.7 | °F | — | ||
Martensite Start Temperature (Ms)(Ms) | 103.7 | °F | — | ||
Thermal Conductivity(k) | 5.778 | BTU/(hr·ft·°F) | — | ||
Thermal Hysteresis(ΔT_hyst) | -441.6 | °F | — |
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Density(ρ) | 0.2312 | lb/in³ | — |