In situ, 3D characterization of the deformation mechanics of a superelastic NiTi shape memory alloy single crystal under multiscale constraint
Sign Up to like & getrecommendations! Published in 2018 at "Acta Materialia"
DOI: 10.1016/j.actamat.2017.11.026
Abstract: Abstract Microstructural elements in NiTi shape memory alloys (SMAs) – precipitates, phase boundaries, inclusions, grain boundaries – can be viewed as sources of multiscale constraint that influence their deformation response. We characterized in situ, and… read more here.
Keywords: niti shape; microscopy; shape memory; deformation ... See more keywords
Heterogeneity and inelasticity of deformation in a notched martensitic NiTi shape memory alloy specimen
Sign Up to like & getrecommendations! Published in 2020 at "Acta Materialia"
DOI: 10.1016/j.actamat.2020.05.019
Abstract: Abstract The low symmetry martensite phase in Nickel-Titanium (NiTi) shape memory alloy (SMA) has a hierarchical microstructure with micro-scale crystallites, which themselves consist of nano-laminates with an internal twin structure. The martensite phase deforms inelastically… read more here.
Keywords: niti shape; martensite; shape memory; deformation ... See more keywords
Influence of Ni4Ti3 precipitation on martensitic transformations in NiTi shape memory alloy: R phase transformation
Sign Up to like & getrecommendations! Published in 2021 at "Acta Materialia"
DOI: 10.1016/j.actamat.2021.116665
Abstract: Abstract Precipitation of Ni4Ti3 is effective in tuning martensitic transformations (MTs) in NiTi shape memory alloys (SMAs). However, several fundamental issues concerning the influence of Ni4Ti3 on MTs remain unclear. In this study, the microstructure… read more here.
Keywords: influence; niti shape; martensitic transformations; influence ni4ti3 ... See more keywords
The effect of employed loading mode on the mechanical cyclic stabilization of NiTi shape memory alloys
Sign Up to like & getrecommendations! Published in 2017 at "Intermetallics"
DOI: 10.1016/j.intermet.2017.05.014
Abstract: Abstract One of the effective parameters on the characteristic response of the nickel-titanium (NiTi) shape memory alloy (SMA) is the employed loading mode during the uniaxial cycling. In this study, the uniaxial tensile tests are… read more here.
Keywords: niti shape; employed loading; shape memory; loading mode ... See more keywords
Improved fracture toughness of NiTi shape memory alloy fiber-reinforced Ti-Al metal-intermetallic-laminate composite
Sign Up to like & getrecommendations! Published in 2018 at "Journal of Alloys and Compounds"
DOI: 10.1016/j.jallcom.2017.12.258
Abstract: Abstract In this paper, the fracture toughness of Ti-Al metal-intermetallic-laminate (MIL) composite with and without NiTi shape memory alloy fibers was comparatively investigated via a three-point bending test. The results indicated that the fracture toughness… read more here.
Keywords: niti shape; shape memory; mil; memory alloy ... See more keywords
Graded functionality obtained in NiTi shape memory alloy via a repetitive laser processing strategy
Sign Up to like & getrecommendations! Published in 2021 at "Journal of Materials Processing Technology"
DOI: 10.1016/j.jmatprotec.2021.117177
Abstract: Abstract The introduction of graded functionality to NiTi shape memory alloy is being pursued to widen martensitic transformation intervals, enhance the controllability and further promote their widespread application as smart components. However, it is far… read more here.
Keywords: functionality; niti shape; shape memory; memory alloy ... See more keywords
Study on properties of SLM-NiTi shape memory alloy under the same energy density
Sign Up to like & getrecommendations! Published in 2021 at "Journal of Materials Research and Technology"
DOI: 10.1016/j.jmrt.2021.04.058
Abstract: Abstract In recent years, selective laser melting (SLM)-NiTi had developed rapidly due to the ability to achieve the complex shape and internal features, as well as high dimensional accuracy. The choice of parameters was particularly… read more here.
Keywords: slm niti; niti shape; shape memory; energy density ... See more keywords
Thermomechanical cyclic stability of porous NiTi shape memory alloy
Sign Up to like & getrecommendations! Published in 2017 at "Materials Research Bulletin"
DOI: 10.1016/j.materresbull.2017.07.016
Abstract: Abstract It is known that shape memory and phase transition response of NiTi shape memory alloy (SMA) is dependent on mechanical or thermal background, and the presence of phases such as B2(NiTi), B19'(NiTi), Ni4Ti3, Ni3Ti2… read more here.
Keywords: niti shape; memory alloy; shape memory; cyclic stability ... See more keywords
Fabrication and characterization of a novel bionic manipulator using a laser processed NiTi shape memory alloy
Sign Up to like & getrecommendations! Published in 2020 at "Optics and Laser Technology"
DOI: 10.1016/j.optlastec.2019.105876
Abstract: Abstract The thermo-mechanical properties of NiTi shape memory alloys (SMAs) have sparked significant research efforts seeking to exploit their bionic capabilities. Currently, the performance capabilities of NiTi-based devices have been inhibited by the retention of… read more here.
Keywords: niti shape; bionic manipulator; laser processed; shape memory ... See more keywords
Prediction of grain scale plasticity of NiTi shape memory alloy based on crystal plasticity finite element method
Sign Up to like & getrecommendations! Published in 2019 at "Transactions of Nonferrous Metals Society of China"
DOI: 10.1016/s1003-6326(19)64987-3
Abstract: Abstract Grain scale plasticity of NiTi shape memory alloy (SMA) during uniaxial compression deformation at 400 °C was investigated through two-dimensional crystal plasticity finite element simulation and corresponding analysis based on the obtained orientation data.… read more here.
Keywords: plasticity; niti shape; plasticity niti; scale plasticity ... See more keywords
Multi-stage martensitic transformation in Ni-rich NiTi shape memory alloys
Sign Up to like & getrecommendations! Published in 2017 at "Functional Materials Letters"
DOI: 10.1142/s1793604717400045
Abstract: Precipitation hardening is an effective way to improve the functional stability of NiTi shape memory alloys. The precipitates, mainly Ni4Ti3, could be introduced by aging treatment in Ni-rich NiTi ... read more here.
Keywords: niti shape; rich niti; shape memory; memory alloys ... See more keywords