Domain boundary engineering

E Salje, H Zhang - Phase Transitions, 2009 - Taylor & Francis
We review the idea that domain boundaries, rather than domains, can carry information and
act as memory devices. Domains are bulk objects; their large response to changing external …

NiTi Shape Memory Alloy: Unraveling the Role of Internal Friction in Passive Damping-A Review

R Radhamani, M Balakrishnan - Materials Today Communications, 2023 - Elsevier
Shape memory alloys (SMA) fabricated from nickel-titanium (NiTi) have garnered significant
attention due to their intrinsic properties, including the shape memory effect (SME) …

Strain glass in Fe-doped Ti–Ni

D Wang, Z Zhang, J Zhang, Y Zhou, Y Wang, X Ding… - Acta materialia, 2010 - Elsevier
We report the existence of strain glass in Ti50Ni50− xFex, beyond a critical Fe doping level
x> xc (5< xc< 6). The strain glass state is confirmed by the appearance of a frequency …

Occurrence of the R-phase with increased stability induced by low temperature precipitate-free aging in a Ni50. 9Ti49. 1 alloy

X Huo, P Chen, S Lahkar, M Jin, X Han, Y Song… - Acta Materialia, 2022 - Elsevier
The R-phase transformation presents low thermal hysteresis, high stability against thermal
cycling and ultrahigh internal friction (IF). However, a clear explanation for the occurrence of …

Microstructural origin of ultrahigh damping capacity in Ni50. 8Ti49. 2 alloy containing nanodomains induced by insufficient annealing and low-temperature aging

Y Song, M Jin, X Han, X Wang, P Chen, X Jin - Acta Materialia, 2021 - Elsevier
Abstract We report a Ni 50.8 Ti 49.2 alloy that exhibits an ultrahigh damping capacity with an
internal friction value of~ 0.35 (tan δ) at low frequencies in a wide temperature range. This …

Internal friction in complex ferroelastic twin patterns

X He, S Li, X Ding, J Sun, S Kustov, EKH Salje - Acta Materialia, 2022 - Elsevier
We report the first attempt to study the internal friction (IF) of complex ferroelastic twin
patterns by atomistic molecular dynamics simulations. At different stress amplitudes, linear …

Influence of high configuration entropy on damping behaviors of Ti-Zr-Hf-Ni-Co-Cu high entropy alloys

WQ Wu, L Zhang, KK Song, JM Pelletier… - Journal of Materials …, 2023 - Elsevier
TiNi-based shape memory alloys (SMAs) have been used as damping materials to eliminate
noise and mechanical vibration. However, their application is limited by low working …

Effect of aging treatment on damping capacity in Cu–Al–Mn shape memory alloy

M Li, S Yan, W Yan, B Shi - Journal of Alloys and Compounds, 2020 - Elsevier
The effect of aging treatment at the temperature ranging from 250 to 400° C on the damping
capacity in columnar-grained Cu–Al–Mn shape memory alloy and its mechanism were …

Effect of Co additions on the damping properties of Cu–Al–Ni shape memory alloys

SH Chang, BS Liao… - Journal of Alloys and …, 2020 - Elsevier
This study investigates the effect of Co additions on the damping properties of Cu-13.5 Al–
4Ni-xCo and Cu-14.0 Al–4Ni-xCo (x= 0–2 wt%) shape memory alloys (SMAs). The Cu-14.0 …

Ultrahigh damping capacity achieved by modulating R phase in Ti49. 2Ni50. 8 shape memory alloy wires

M Jin, Y Song, X Wang, P Chen, G Pang, X Jin - Scripta Materialia, 2020 - Elsevier
An ultrahigh damping capacity with internal friction close to 0.35 was detected over a large
temperature range of 75° C (from-40 to 35° C) in Ti 49.2 Ni 50.8 shape memory wires by …