Ferromagnetic shape memory alloys—challenges, applications, and experimental characterization
Ferromagnetic shape memory alloys (FSMA) constitute a subgroup of shape memory alloys
(SMA) that also exhibit a ferromagnetic behavior. Due to the unique combination of large …
(SMA) that also exhibit a ferromagnetic behavior. Due to the unique combination of large …
The role of adaptive martensite in magnetic shape memory alloys
Magnetic shape memory materials require a high twin boundary mobility and low hysteresis
for applications mainly as actuators, sensors, and magnetocaloric cooling elements. Usually …
for applications mainly as actuators, sensors, and magnetocaloric cooling elements. Usually …
Evolution of martensitic microstructures in nanocrystalline NiTi wires deformed in tension
An experimental method allowing for reconstruction of martensite variant microstructures
evolving during tensile thermomechanical loading test on nanocrystalline NiTi wire is …
evolving during tensile thermomechanical loading test on nanocrystalline NiTi wire is …
Atomistic simulations of structure and motion of twin interfaces reveal the origin of twinning in NiTi shape memory alloys
Shape memory alloys (SMAs) are functional materials featuring unique shape recovery
properties that make them suitable for key industrial applications. The essential process …
properties that make them suitable for key industrial applications. The essential process …
Building hierarchical martensite
S Schwabe, R Niemann, A Backen… - Advanced Functional …, 2021 - Wiley Online Library
Martensitic materials show a complex, hierarchical microstructure containing structural
domains separated by various types of twin boundaries. Several concepts exist to describe …
domains separated by various types of twin boundaries. Several concepts exist to describe …
Effect of crystal quality on twinning stress in Ni–Mn–Ga magnetic shape memory alloys
Low twinning stress (TS) is a prerequisite for magnetic shape memory functionality in
ferromagnetic martensites. We compare Ni 50 Mn 28 Ga 22 (nominal at.%) single crystals …
ferromagnetic martensites. We compare Ni 50 Mn 28 Ga 22 (nominal at.%) single crystals …
A microstructural model of motion of macro-twin interfaces in Ni–Mn–Ga 10 M martensite
We present a continuum-based model of microstructures forming at the macro-twin
interfaces in thermoelastic martensites and apply this model to highly mobile interfaces in 10 …
interfaces in thermoelastic martensites and apply this model to highly mobile interfaces in 10 …
Temperature dependence of twinning stress of Type I and Type II twins in 10M modulated Ni–Mn–Ga martensite
We measure the temperature dependence of twinning stress in alloys with composition
between Ni50Mn28Ga22 and Ni50Mn29Ga21 in the temperature range 288–334K. For …
between Ni50Mn28Ga22 and Ni50Mn29Ga21 in the temperature range 288–334K. For …
Magnetic shape memory effect and highly mobile twin boundaries
O Heczko - Materials Science and Technology, 2014 - journals.sagepub.com
The magnetic shape memory effect can be classified as an example of the multiferroic effect
combining ferro-elasticity and (ferro) magnetism. After short overview of all known effects the …
combining ferro-elasticity and (ferro) magnetism. After short overview of all known effects the …
Adaptive Phase or Variant Formation at the Austenite/Twinned Martensite Interface in Modulated Ni–Mn–Ga Martensite
The crystal structure and transformation path from austenite to 10M martensite in Ni–Mn–Ga
single crystal are examined employing high‐energy synchrotron radiation, scanning, and …
single crystal are examined employing high‐energy synchrotron radiation, scanning, and …