Physical mechanism for nanocrystalline NiTi alloy with ultrasmall-sized grains exhibiting one-way shape memory effect without temperature-induced phase transformation DOI
Yanqiu Zhang,

Kairui Guo,

Peng Lin

et al.

Applied Surface Science, Journal Year: 2024, Volume and Issue: 677, P. 161056 - 161056

Published: Aug. 25, 2024

Language: Английский

Phase Field Study on the Temperature Dependence of the Shape Memory Effect and Superelasticity of Niti Alloys with Different Grain Sizes DOI
Xi Xie, Bo Xu, Chao Yu

et al.

Published: Jan. 1, 2025

The shape memory effect (SME) and superelasticity (SE) of NiTi alloys (SMAs) were reported to be severely affected by grain size (GS) temperature. temperature on the GS-dependent SME SE polycrystalline SMAs underlying mechanisms have not yet been comprehensively understood. In this work, a new diffuse boundary energy related misorientation among adjacent grains is introduced into phase field model. studied systematic simulations. It turns out that both critical GSs for twinned martensite nucleation termination propagation increase with increasing since internal stress (decreases decreasing GS) gradually becomes unable break through hindrance (increases barrier temperature) transformation. After processes, residual strain in increases GS because (related deformation incompatibility) insufficient prompt complete reverse transformation when relatively large. This phenomenon can relieved (due reduced barrier).

Language: Английский

Citations

0
In-situ TEM study on the effect of dislocations on phase transformation and cycling behaviors of laser powder bed fused TiNi alloy DOI
Qingquan Zhang, Hui Shen, Ying Yang

et al.

Journal of Alloys and Compounds, Journal Year: 2025, Volume and Issue: 1013, P. 178450 - 178450

Published: Jan. 1, 2025

Language: Английский

Citations

0
Effects of strain rate on the superelasticity of polycrystalline NiTi shape memory alloy with microvoids: constitutive modeling and molecular dynamics DOI
Xiang Zhu, Shihao Li, Shan Zhou

et al.

Acta Mechanica, Journal Year: 2025, Volume and Issue: unknown

Published: Jan. 15, 2025

Language: Английский

Citations

0
Enlarged Pre-Strain Effect Associated with Nb-Rich Particles in Ti44ni47nb9 Shape Memory Alloy DOI
Xu Chen, Yulin Chen, Dujuan Yang

et al.

Published: Jan. 1, 2025

Language: Английский

Citations

0
Study on grain size dependence of shape memory effect in nanocrystalline NiTi shape memory alloys with grain size below 20 nm based on molecular dynamics simulation DOI
Yanqiu Zhang,

Kairui Guo,

Weiqiang Yu

et al.

Materials Today Nano, Journal Year: 2025, Volume and Issue: unknown, P. 100610 - 100610

Published: March 1, 2025

Language: Английский

Citations

0
The effect of cyclic deformation on the superelastic properties of nanocrystalline TiNiCr shape memory alloy DOI
Yapeng Li, Pengfei Zhang, Cuihong Sheng

et al.

Journal of Alloys and Compounds, Journal Year: 2025, Volume and Issue: unknown, P. 179728 - 179728

Published: March 1, 2025

Language: Английский

Citations

0
Phase field study on the temperature dependence of the shape memory effect and superelasticity of NiTi alloys with different grain sizes DOI
Xi Xie, Bo Xu, Chao Yu

et al.

European Journal of Mechanics - A/Solids, Journal Year: 2025, Volume and Issue: unknown, P. 105656 - 105656

Published: March 1, 2025

Language: Английский

Citations

0
Enlarged pre-strain effect associated with Nb-rich particles in Ti44Ni47Nb9 shape memory alloy DOI
Xu Chen, Yulin Chen, Dujuan Yang

et al.

Journal of Alloys and Compounds, Journal Year: 2025, Volume and Issue: unknown, P. 180320 - 180320

Published: April 1, 2025

Language: Английский

Citations

0
Physical mechanism for nanocrystalline NiTi alloy with ultrasmall-sized grains exhibiting one-way shape memory effect without temperature-induced phase transformation DOI
Yanqiu Zhang,

Kairui Guo,

Peng Lin

et al.

Applied Surface Science, Journal Year: 2024, Volume and Issue: 677, P. 161056 - 161056

Published: Aug. 25, 2024

Language: Английский

Citations

1