Results 11 to 20 of about 1,600 (183)

Influence of Directional Solidification on the Mechanical Properties of Cu-Al-Be-Nb-Ni Alloy [PDF]

Materials Research, 2019
Copper-based polycrystalline shape memory alloys (SMAs) have limitations for many practical applications due to their low superelasticity and low ductility.
Gabrielly de Lucena Tiburtino, Rafael Tavares Vieira, Ieverton Caiandre Andrade Brito, Rafael Evaristo Caluête, Rodinei Medeiros Gomes, Danniel Ferreira de Oliveira   +5 more
doaj   +1 more source

High temperature superelasticity realized in equiatomic Ti-Ni conventional shape memory alloy by severe cold rolling

Materials & Design, 2020
Great interests on high temperature shape memory alloys (HTSMAs) are recently raised, driven primarily by the aerospace and automotive industries, for their potential to serve as solid state actuators at high temperatures over 373 K.
Jian Zhang, Tong Chen, Wei Li, Jozef Bednarcik, Ann-Christin Dippel   +4 more
doaj   +1 more source

Designing a wider superelastic window

Science, 2020
Adding chromium to an iron alloy enables shape recovery over a wide temperature ...
la Roca, Paulo Matías, Sade Lichtmann, Marcos Leonel   +1 more
openaire   +5 more sources

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

A high-entropy high-temperature shape memory alloy with large and complete superelastic recovery

Materials Research Letters, 2021
High-temperature shape memory alloys (HTSMAs) show enormous potential for applications as energy conversion devices, actuators and sensors in automotive, aerospace, and energy exploration industries, but they suffer from strength decrease and ...
Shaohui Li, Daoyong Cong, Zhen Chen, Shengwei Li, Chao Song, Yuxian Cao, Zhihua Nie, Yandong Wang   +7 more
doaj   +1 more source

Martensitic Transition and Superelasticity of Ordered Heat Treatment Ni-Mn-Ga-Fe Microwires

Metals, 2022
The preparation of Ni-Mn-Ga and Ni-Mn-Ga-Fe master alloy ingots and microwires was completed by high vacuum electric furnace melt melting furnace and melt drawing liquid forming equipment, and the lattice dislocations and defects formed inside the ...
Yanfen Liu, Zirui Lang, Hongxian Shen, Jingshun Liu, Jianfei Sun   +4 more
doaj   +1 more source

Passive Attenuation of Mechanical Vibrations with a Superelastic SMA Bending Springs: An Experimental Investigation

Sensors, 2022
This work presents an experimental study related to the mechanical performance of a special design spring fabricated with a superelastic shape memory alloy (SMA-SE).
Richard Senko, Vinícius S. Almeida, Rômulo P. B. dos Reis, Andersson G. Oliveira, Antonio A. Silva, Marcelo C. Rodrigues, Laura H. de Carvalho, Antonio G. B. Lima   +7 more
doaj   +1 more source

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

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