Results 41 to 50 of about 18,417 (300)

Achieving superelasticity in additively manufactured NiTi in compression without post-process heat treatment

Scientific Reports, 2019
Shape memory alloys (SMAs), such as Nitinol (i.e., NiTi), are of great importance in biomedical and engineering applications due to their unique superelasticity and shape memory properties. In recent years, additive manufacturing (AM) processes have been
Narges Shayesteh Moghaddam, S. Saedi, A. Amerinatanzi, Alejandro Hinojos, A. Ramazani, J. Kundin, M. Mills, H. Karaca, M. Elahinia   +8 more
semanticscholar   +1 more source

Superelasticity with narrow stress hysteresis and high cyclic stability in Co–V–Al polycrystalline alloy

Journal of Materials Research and Technology
Superelasticity of shape memory alloy associated with the martensitic transformation is extremely attractive for applications in sensors and biomedical.
Xin Jin, Jian Li, Jie Yang, Xiaochuan Wang, Sen Na, Mingchao Zhang, Hetong Xu, Xiaohua Tian, Wenbing Zhao, Haipo Zhang, Changlong Tan   +10 more
doaj   +1 more source

Stress-Induced Phase Transformations in Shape-Memory Polycrystals [PDF]

, 2008
Shape-memory alloys undergo a solid-to-solid phase transformation involving a change of crystal structure. We examine model problems in the scalar setting motivated by the situation when this transformation is induced by the application of stress in a ...
Bhattacharya, Kaushik, Schlömerkemper, Anja   +1 more
core   +2 more sources

Molecular Dynamics Investigation on Grain Size-Dependent Superelastic Behavior of CuZr Shape Memory Alloys

Metals
The superelasticity of CuZr shape memory alloys (SMAs) originates from stress-induced transformations between the B2 (austenite) and B19’ (martensite) phases. Grain size is a key parameter affecting the superelasticity of shape memory alloys.
Mixun Zhu, Kai Wang, Hongtao Zhong, Huahuai Shen, Yong Zhang, Xiaoling Fu, Yuanzheng Yang   +6 more
doaj   +1 more source

Simulation of deformation behavior of TiNi alloy with TiN coatings for medical applications

Весці Нацыянальнай акадэміі навук Беларусі: Серыя фізіка-тэхнічных навук, 2023
The deformation behavior of the titanium nickelide alloy Ti–55.84 wt. % Ni (TiNi) with titanium nitride (TiN) coatings obtained by arc-PVD has been simulated.
V. V. Rubanik, D. A. Bahrets, V. V. Rubanik jr., V. I. Urban, V. G. Dorodeiko   +4 more
doaj   +1 more source

Shape memory effect of NiTi alloy processed by equal-channel angular pressing followed by post deformation annealing

, 2014
Processing by Equal-Channel Angular Pressing (ECAP) is generally considered superior to most other SPD techniques because it uses relatively large bulk samples.
Langdon, Terence G., Nili-Ahmadabadi, Mahmoud, Shahmir, Hamed   +2 more
core   +1 more source

On the experimental testing of fine Nitinol wires for medical devices [PDF]

, 2011
Nitinol, a nickel titanium alloy, is widely used as a biocompatible metal with applications in high strain medical devices. The alloy exhibits both superelasticity and thermal shape memory behaviour. Basic mechanical properties can be established and are
Dempster, William, Henderson, Emma, Nash, David   +2 more
core   +1 more source

Superelastic Softening of Ferroelastic Multidomain Crystals [PDF]

Ferroelectrics, 2012
Many proper and improper ferroelastic materials display (at sufficiently low measurement frequencies) a huge elastic softening below Tc. This giant elastic softening, which can be suppressed with uniaxial stress, is caused by domain wall motion. Here we shortly review our results on frequency and temperature dependent elastic measurements of some ...
Schranz, Wilfried, Kabelka, Heinz, Tröster, Andreas   +2 more
openaire   +2 more sources

Hierarchical Cellular Structured Ceramic Nanofibrous Aerogels with Temperature-Invariant Superelasticity for Thermal Insulation.

ACS Applied Materials and Interfaces, 2019
Silica aerogels are attractive for thermal insulation due to their low thermal conductivity and good heat resistance performance. However, the fabrication of silica aerogels with temperature-invariant superelasticity and ultralow thermal conductivity has
Lvye Dou, Xinxin Zhang, Xiaota Cheng, Zongmin Ma, Xueqin Wang, Y. Si, Jianyong Yu, B. Ding   +7 more
semanticscholar   +1 more source

Shape Memory Effect and Superelasticity of [001]-Oriented FeNiCoAlNb Single Crystals Aged under and without Stress

Metals, 2021
The two-step ageing of Fe-28Ni-17Co-11.5Al-2.5Nb (at.%) single crystals under and without stress, leads to the precipitation of the γ′- and β-phase particles.
Yuriy I. Chumlyakov, Irina V. Kireeva, Zinaida V. Pobedennaya, Philipp Krooß, Thomas Niendorf   +4 more
doaj   +1 more source