Nitinol, a near equiatomic intermetallic of nickel and titanium, is the most widely known and used shape memory alloy. Owing to its capacity to undergo a thermal or stress induced martensitic phase transformation, Nitinol displays recoverable strains that are more than an order of magnitude greater than in traditional alloys, specifically as high as 10%. Since its discovery in the 1960s, Nitino...

Molecular dynamics simulations are performed to provide a detailed understanding of the functional degradation shape memory alloys at small scale. The origin experimentally reported accumulation plastic deformation and anomalous sudden increase residual strain under cyclic mechanical loading explained by insights into relevant atomic scale processes. Our work reveals that response shape-memory-...

The effects of Cr and Sn additives on the phase constitution, lattice deformation strain, transformation temperature, behavior Ti-Cr-Sn alloys were systematically investigated to inform development a superelastic alloy with high strain. addition changes reverse martensitic temperature by −190 K/mol% −141 Sn, respectively. strains (η1, η2, η3) evaluated in terms parameters parent β martensite α″...

The current research presentsthe development of EPDM rubber including shape memory alloy. Cu-Al-Zn alloy was modified with the coupling agent3-(Trimethoxysilyl) propyl methacrylate (TMSPM)and then incorporated into Ethylene propylene diene (EPDM) by a 2-roll mill technique.The Cu-alloy behaved as superelasticity capability which can be used in various engineering approaches to smart materials. ...

Nitinol, a nickel-titanium alloy known for its exceptional properties of shape memory, superelasticity, and biocompatibility, has revolutionized the field endodontics. This article explores evolutionary journey Nitinol in endodontics, highlighting historical inception subsequent integration into dental instruments. The delves pivotal advancements such as heat treatment surface functionalization...

Effect of the surface oxide layer on shape memory effect (SME) and superelasticity (SE) after marforming (deformation in martensitic state, followed by annealing at 713 K for 0.5 h an inert helium gas dry air) was investigated Ti-50.1Ni (at.%) single crystals, oriented along [011]-direction, under compression. Quenched [011]-oriented crystals alloy experience a one-stage B2-B19′ transformation ...

Shape Memory Alloys (SMAs) are an innovative material with the unique features of superelasticity and energy dissipation capabilities under extreme loads. Due to their features, they have a great potential be employed in structural engineering applications different conditions. However, order effectively use SMAs civil structures model behaviors accurately Finite Element (FE) packages, it is cr...

A process was developed for fabricating arrays of micro-channels in shape-memory NiTi for bone implant applications, with a tailorable internal architecture expected to improve biomechanical compatibility and osseointegration. Ni-51.4 at.% Ti with 24-34 vol.% porosity was fabricated by electrochemical dissolution of parallel layers of steel wire meshes embedded within a NiTi matrix during hot p...