Material
Nickel-Titanium (NiTi)
Nickel-titanium (NiTi, nitinol) is a shape memory alloy that recovers its shape after deformation, with superelastic recovery of about 3–6% strain in printed parts, though its behavior depends on precise nickel content and heat treatment.
Manufacturing processes
About
Nickel-titanium (NiTi), also called nitinol, is a near-equiatomic nickel-titanium alloy with shape memory, superelasticity, corrosion resistance, and biocompatibility.
Its behavior depends on precise composition: transformation temperatures shift about 10°C per 0.1 at.% nickel, and laser melting typically raises them by 15–30 °C, so the working temperature must be specified and is often set by heat treatment. Printed parts typically recover about 3–6% strain, and superelastic performance can degrade with repeated cycling.
Nickel-titanium (NiTi) is a good option for actuators, dampers, and orthodontic or stent-like components.
Technical Details
- Accuracy
- ±0.2% (lower limit of ±0.2 mm)
- Density
- 6.45 g/cm³
- Min. wall thickness
- 1 mm
Technical Properties
- Tensile strength
- 700 - 1200 MPa
- Tensile modulus
- 28000 - 80000 MPa
- Tensile elongation
- 8 - 25%
- Flexural modulus
- 30000 - 80000 MPa
- Default layer height
- 0.05 mm
- Default infill
- 100%
- Embossing
- min. 1 mm
- Engraving
- min. 1 mm
- Interlocking parts
- Yes
- Warping risk
- High
- Maximum printing dimensions
- 250 × 250 × 300 mm