Shape Memory Alloys: fe_based
Shape memory alloy (SMA) properties — transformation temperatures (As, Af, Ms, Mf), recovery strain, superelastic plateau stress, tensile strength, modulus, fatigue life, and hysteresis for NiTi and copper-based alloys
| alloy family | alloy id | austenite finish C (C) | austenite start C (C) | common name | corrosion resistance | density kg m3 (kg/m3) | elongation at break pct (%) | fatigue life cycles (cycles) | hysteresis width C (C) | martensite finish C (C) | martensite start C (C) | max operating temp C (C) | modulus austenite GPa (GPa) | modulus martensite GPa (GPa) | notes | recovery strain pct (%) | tensile strength MPa (MPa) |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| fe_based | fe_mn_si | 100 | 50 | Fe-Mn-Si (Fe-28Mn-6Si wt%) | fair | 7,300 | 25 | 50,000 | 100 | -30 | 0 | 150 | 200 | 140 | Fe-Mn-Si-Cr-Ni commercial grade; lower cost; 200 GPa austenite modulus; recovery strain 6% max | 6 | 500 |
| fe_based | fe_mn_si_cr | 110 | 60 | Fe-Mn-Si-Cr-Ni (corrosion resistant) | good | 7,300 | 20 | 50,000 | 100 | -20 | 10 | 150 | 195 | 135 | Added Cr+Ni improves corrosion resistance; construction/civil engineering applications | 5 | 550 |
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