Results 11 to 20 of about 3,923 (223)

Effect of heat treatment on the microstructure and superelasticity of NiTi alloy via selective laser melting

Journal of Materials Research and Technology
In this study, a Ni50.4Ti49.6 shape memory alloy (SMA) was fabricated by selective laser melting (SLM), and it is found that heat treatments were effective to change the phase transformation behavior, microstructure, and superelasticity under compression
H.Z. Lu, Z.J. Zhou, Y. Yang, R.C. Wang, H.W. Ma, W.S. Cai, D.Z. Zhu, C. Yang   +7 more
doaj   +2 more sources

Room-temperature superelasticity in Mg–Sc shape memory alloys revealed by first-principles calculations

Journal of Materials Research and Technology
The discovery of the Mg–Sc shape memory alloy system has become a milestone in the development of lightweight shape memory alloys. However, for the application scenarios with the highest demand at room temperature, the Mg–Sc alloy faces problems such as ...
Haosen Yuan, Wenbin Zhao, Hangyuan Zhang, Zhihang Fan, Xiaohua Tian, Kun Zhang, Changlong Tan   +6 more
doaj   +2 more sources

Effect of Process Parameters on Superelasticity of LPBF Ni-Rich Ni_51.3Ti_48.7 Shape Memory Alloy

Metals
Laser powder bed fusion (LPBF) presents both opportunities and challenges with regard to the customisation of NiTi alloy properties. This paper presents a systematic study of the influence of process parameters on the superelasticity of LPBF Ni-rich Ni51.
Zheng Xiang, Qin Yang, Tianhao Zhang, Xianfeng Shen, Jie Chen, Shuke Huang   +5 more
doaj   +2 more sources

Design, Characterization, and Finite-Element Optimization of a Two-Way Assisted Through SuperElasticity Torsion Actuator [PDF]

, 2022
The present study aims at developing a new Shape Memory Alloy (SMA) autonomous torsion actuator that exhibits Two-Way reversible memory effect Assisted by SuperElasticity.
PELTIER, Laurent, SLEIGHT, Matthew, PIOTROWSKI, Boris, MERAGHNI, Fodil   +3 more
core   +1 more source

Cyclic stability in superelasticity window for aged single crystals CoNiAl

, 2022
The cyclic stability of superelasticity in a wide temperature range was investigated on aged at 573 K for 0.5 h Co35Ni35Al30 single crystals oriented along the [001]-direction in compression.
Eftifeeva, Anna S., Panchenko, Elena Yu., Chumlyakov, Yuri I., Yanushonite, Eleonora I.   +3 more
core   +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

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

Superelasticity in quenched and aged FeMnAlNiTi oligocrystals under compression

, 2021
The paper studies superelasticity in a 203–523 K temperature range of the 42.5Fe-34Mn-15Al-7.5Ni-1Ti at.% oligocrystals quenched and aged at 473 K for 3 hours.
Kuksgauzen, D. A., Kirillov, V. A., Poklonov, V. V., Chumlyakov, Yuri I., Kuksgauzen, Irina V.   +4 more
core   +1 more source