Effect of Atomic Ordering of DO3 Precipitates on Superelasticiy and Functional Fatigue of Iron-Based Shape Memory Alloy FeMnAlNiTi
R. Sidharth, H. Akamine, W. Abuzaid, ASK. Mohammad, T. Niendorf, M. Nishida +1 · Springer Science and Business Media LLC · 2025
The study links atomic ordering of DO3 precipitates in FeMnAlNiTi shape memory alloy to enhanced superelasticity and functional fatigue resistance.
Plain English summary
Why this matters
Key findings
- FeMnAlNiTi exhibits over 400 °C temperature window of superelasticity.
- Degree of ordering of DO3 precipitates is linked to superelastic functionality.
- Prolonged aging increases the order of precipitates without changing their size.
- Ultrahigh transformation stress of about 1.4 GPa can be attained.
- Functional fatigue resistance increases with the ordering of precipitates.
What's new
The study establishes a direct link between the atomic ordering of precipitates and the superelastic properties of the alloy.
Limitations
The abstract does not discuss practical applications or the commercial viability of the findings.
Commercial context
The research is still in the laboratory phase and does not indicate commercial availability.
Publication
- Publisher
- Springer Science and Business Media LLC
- Publication date
- September 1, 2025
- Research type
- Paper
- License
- https://creativecommons.org/licenses/by/4.0
Tags
More on Shape-Memory Alloys
See all →Functional Shape Recovery Response of Heat-Treated NiTiCu SHAPE Memory Alloy Wire
Heat treatment of NiTiCu shape memory alloy wires enhances their shape recovery response, achieving a high recovery ratio.
A Deformable Robot Based on Shape Memory Alloy and Phase Change Metal
This research presents a novel deformable robot that integrates Shape Memory Alloys and phase change metals for enhanced adaptability and locomotion.
Development of a Directional Vibrator Using Shape-Memory Alloy Wires
This paper proposes a compact directional vibrator using Shape-Memory Alloy wires for enhanced haptic feedback in virtual and augmented reality applications.
Martensitic Transformation in Crystal-Amorphous Superlattices of NiTi Shape Memory Alloy
Crystal-amorphous superlattices in NiTi are simulated to shift martensitic transformation behavior, boosting reversibility and stiffness while raising transformation critical stress.
HVAF Spraying of NiTi Coatings: Microstructure, Phase Transformation and Shape Memory Behavior
HVAF spraying enables thick (100–300 µm) NiTi shape-memory alloy coatings on mild steel that can undergo martensitic transformation and exhibit thermal actuation and shape memory effects after annealing.
Omnidirectional Shape Proprioception for Untethered Shape Memory Alloy‐Driven Soft Robotic Arms
This research presents a modular soft robotic arm using shape memory alloys for improved proprioception and adaptability in unstructured environments.
Recently published
Latest research →Bio-inspired re-entrant honeycomb metamaterial with programmable dual-plateau mechanical response
A bio-inspired re-entrant honeycomb mechanical metamaterial is described as having a programmable dual-plateau mechanical response.
Modelling the thermo-mechanical responses and shape recovery performance of particle-reinforced shape memory polymer composites in cold and hot programming
A study focused on modeling thermo-mechanical behavior and shape recovery of particle-reinforced shape-memory polymer composites when programmed in cold versus hot conditions.
Dorsiventrally Bicolored Leaf‐Inspired Metamaterial Absorbers for Tailorable Electromagnetic Absorption
This research proposes a bioinspired metamaterial that achieves high-performance, tailorable electromagnetic absorption across a broad frequency range.