Results 21 to 30 of about 3,923 (223)

Effect of Fe addition on the microstructure, transformation behaviour and superelasticity of NiTi alloys fabricated by laser powder bed fusion

Virtual and Physical Prototyping, 2023
NiTi-Fe ternary shape memory alloys were produced by laser powder bed fusion (L-PBF) using the pre-alloyed NiTi and elemental Fe powders. A large process window exists to fabricate dense NiTiFe0.3 and NiTiFe0.5 alloys, while severe cracks occur in the ...
Rui Xi, Hao Jiang, Guichuan Li, Zhihui Zhang, Guoqun Zhao, Kim Vanmeensel, Sergey Kustov, Jan Van Humbeeck, Xiebin Wang   +8 more
doaj   +1 more source

Functional Behaviour of Cold-Worked and Straight-Annealed NiTi Elements Processed with Ultrashort Laser Cutting

Metals, 2022
Among functional materials, quasiequiatomic NiTi alloys are one of the most promising and diffused for some sectors, from the biomedical to aerospace ones.
Carlo Alberto Biffi, Ausonio Tuissi
doaj   +1 more source

Pressure-induced superelastic behaviour of isonicotinamide [PDF]

Chemical Communications, 2021
The dynamic behaviour of isonicotinamide is induced by pressure and observed using X-ray diffraction to elucidate a potential molecular mechanism.
Jones, Eleanor, Bebiano, Suse S., Ward, Martin R., Bimbo, Luis M., Oswald, Iain D.H.   +4 more
openaire   +5 more sources

Deformation and Fracture of Thin Sheets of Nitinol [PDF]

, 2007
Nickel-Titanium (Nitinol) is a Shape Memory Alloy (SMA) that exhibits superelasticity (pseudoelasticity) and shape memory by a solid-solid state diffusion-less phase transformation.
Daly, Samantha Hayes
core   +1 more source

Critical Frequency of Self-Heating in a Superelastic Ni-Ti Belleville Spring: Experimental Characterization and Numerical Simulation

Sensors, 2021
The mechanical loading frequency affects the functional properties of shape memory alloys (SMA). Thus, it is crucial to study its effect for the successful use of these materials in dynamic applications.
Emmanuel Ferreira de Souza, Paulo César Sales da Silva, Estephanie Nobre Dantas Grassi, Carlos José de Araújo, Antonio Gilson Barbosa de Lima   +4 more
doaj   +1 more source

Viscosity of liquid GaxNi100-x alloys [PDF]

, 2014
Structure of liquid Sb-Sn alloys were studied by means of viscosity measurements and X-ray diffraction. Structural factors and pair correlation functions were analyzed and interpreted using the random atomic distribution model.
Yakymovych, A.
core   +1 more source

Unprecedented non-hysteretic superelasticity of [001]-oriented NiCoFeGa single crystals

, 2020
Superelasticity associated with the martensitic transformation has found a broad range of engineering applications1,2. However, the intrinsic hysteresis3 and temperature sensitivity4 of the first-order phase transformation significantly hinder the usage ...
Liu, Y.,, Li, S.,, Liu, W.,, Zheng, H.,, Vitos, Levente,, Nie, Z.,, Mitchell, J. F.,, Zhang, X.,, Chen, H.,, Yu, R.,, Ren, Y.,, Wang, Y. -D,, Tian, F.,, Shen, X.,, Zhang, M.,, Cao, P.,, Ye, F.,, Li, R.,, Cong, D.,   +18 more
core   +1 more source

INNOVATIVE USE OF SHAPE MEMORY ALLOYS AS REINFORCEMENTS FOR CONCRETE BEAM-COLUMN JOINTS: AN OVERVIEW

Mağallaẗ Al-kūfaẗ Al-handasiyyaẗ, 2023
Shape memory alloys have two unique properties of shape memory effect (SME) and superelasticity (SE) that are the ability for large inelastic deformations recovery after heating (SME) and stress removal (SE).
Mahdieh Sabbaghian, Mohammadzaman Kabir
doaj   +1 more source

Research Progress of Fe-Based Superelastic Alloys

Crystals, 2022
In recent years, superelastic alloys have become a current research hotspot due to the large recoverable deformation, which far exceeds the elastic recovery. This will create more possibilities in practical applications.
Zhenxin Li, Yang Zhang, Kai Dong, Zhongwu Zhang   +3 more
doaj   +1 more source

Superelasticity of Geometrically Graded NiTi Shape Memory Alloys

Metals, 2023
A stress plateau with a strain of 5–8% normally occurs during the stress-induced martensite transformation (SIM) of NiTi shape memory alloys. Within the stress plateau, the correlation between the stress and strain is lost, which limits their application
Weimei Chen, Rui Xi, Hao Jiang, Xiaoqiang Li, Guiwei Dong, Xiebin Wang   +5 more
doaj   +1 more source