Superelasticity degradation of NiTi shape memory alloy in wide ranges of temperature and loading level: Experimental observation and micromechanical constitutive …

D Song, C Yu, C Zhang, G Kang - International Journal of Plasticity, 2023 - Elsevier
In this work, cyclic tension-unloading tests with different peak strains (10%-18%) in the
temperature range from 313 K to 393 K are performed to investigate the effects of …

Kwinking as the plastic forming mechanism of B19′ NiTi martensite

H Seiner, P Sedlák, M Frost, P Šittner - International Journal of Plasticity, 2023 - Elsevier
Irreversible plastic forming of B19′ martensite of the NiTi shape memory alloy is discussed
within the framework of continuum mechanics. It is suggested that the main mechanism …

Fatigue life evaluation and cellular substructure role of laser powder bed fused 304L steel based on dissipative deformation mechanisms

H Zhang, C Li, W Song, N He, F Wang, Y Zhang - Additive Manufacturing, 2023 - Elsevier
This study presents an energy dissipation model based on the self-heating effect for rapidly
evaluating high-cycle fatigue parameters of 304L stainless steel (SS) produced by laser …

Modeling a sample size-dependency of martensitic phase transformation using a mesoscale framework

M Vasoya, DC Lagoudas - International Journal of Plasticity, 2023 - Elsevier
Predicting a sample size-dependency of the constitutive response of any material system
when it is being used in nano-and micro-scale devices, such as NEMS and MEMS, is very …

Concentration of transformation-induced plasticity in pseudoelastic NiTi shape memory alloys: Insight from austenite–martensite interface instability

Y Zhang, X Chai, X Ju, Y You, S Zhang, L Zheng… - International Journal of …, 2023 - Elsevier
Transformation-induced plasticity (TRIP) in pseudoelastic polycrystalline NiTi shape memory
alloys (SMAs) is investigated through tensile tests combined with in-situ infrared and digital …

A multi-scale diffusional-mechanically coupled model for super-elastic NiTi shape memory alloy wires in hydrogen-rich environment

C Yu, HM Jiang, D Song, Y Zhu, G Kang - International Journal of Plasticity, 2023 - Elsevier
The functional devices made by NiTi shape memory alloys (SMAs) are often serviced in
hydrogen (H)-rich environment. Recently experimental results showed that the martensite …

Effect of pore on the deformation behaviors of NiTi shape memory alloys: A crystal-plasticity-based phase field modeling

B Xu, C Yu, C Wang, Q Kan, Q Wang, G Kang - International Journal of …, 2024 - Elsevier
Porous NiTi shape memory alloys (SMA) have been developed into important biomedical
and damping materials. However, the effect of pore on the martensitic microstructure …

A micromechanical constitutive model of high-temperature shape memory alloys

Q Kan, W Shi, D Song, C Yu, G Kang - International Journal of Mechanical …, 2023 - Elsevier
In this work, a new micromechanical constitutive model is constructed for high-temperature
shape memory alloys. Different from the classical constitutive models, the microstructural …

A three-dimensional constitutive model for shape memory alloy considering transformation-induced plasticity, two-way shape memory effect, plastic yield and tension …

Z Rao, J Leng, Z Yan, L Tan, X Yan - European Journal of Mechanics-A …, 2023 - Elsevier
In this paper, a three-dimensional phenomenological constitutive model for shape memory
alloys (SMA) is proposed with consideration given to various thermomechanical …

[HTML][HTML] A multi-scale model combining martensitic transformations with multi-phase crystallographic slip

RPC Coelho, MV de Carvalho, FMA Pires - Computers & Structures, 2023 - Elsevier
Mechanically induced martensitic transformations are an essential mechanism influencing
the constitutive behaviour of many advanced steel grades, such as austenitic stainless …