Due to unique functional and mechanical properties, NiTi shape memory alloys are one of
the most promising metallic functional materials. However, the poor workability limits the …

In near equiatomic NiTi alloys, the thermoelastic transformation between austenite and the R-
phase shows unique properties, which make the R-phase transformation very promising for …

In order to take advantage of both grain refinement and precipitation hardening effects,
nanoscaled Ni 4 Ti 3 precipitates are introduced in a Ti–50.8 at.% Ni alloy with micron-sized …

Functional stability of superelasticity is crucial for practical applications of shape memory
alloys. It is degraded by a Lüders-like deformation with elevated local stress concentration …

In this work, we proposed a process to improve the functional stability of Ni-rich NiTi alloys,
which combines surface nano-crystallization by means of ultrasonic shot peening and …

In this work, a new process is developed to improve the functional stability of Ni-rich NiTi
alloys. Repetitive temperature-and stress-induced phase transformation is first conducted to …

The R-phase transformation presents low thermal hysteresis, high stability against thermal
cycling and ultrahigh internal friction (IF). However, a clear explanation for the occurrence of …

Abstract We report a Ni 50.8 Ti 49.2 alloy that exhibits an ultrahigh damping capacity with an
internal friction value of~ 0.35 (tan δ) at low frequencies in a wide temperature range. This …

Electron beam wire-feed additive manufacturing (EBAM) has been shown to be an ideal
method to additively manufacture NiTi alloys with good tensile functional properties …

The effect of the annealing temperature of a Ti-50.9 at.% Ni nanocrystalline alloy with an
inhomogeneous grain/subgrain structure on Ti 3 Ni 4 precipitation was investigated. The …