Effects of aging on [1 1 1] oriented NiTiHfPd single crystals under compression

HE Karaca, E Acar, B Basaran, RD Noebe, G Bigelow… - Scripta Materialia, 2012 - Elsevier
The effects of aging on the shape memory properties of [111] oriented Ni45. 3Ti29.
7Hf20Pd5 single crystals were investigated under compression. Thermal cycling under …

[HTML][HTML] H-Phase precipitation and martensitic transformation in Ni-rich Ni–Ti–Hf and Ni–Ti-Zr high-temperature shape memory alloys

A Evirgen, J Pons, I Karaman, R Santamarta… - Shape Memory and …, 2018 - Springer
The distributions of H-phase precipitates in Ni 50.3 Ti 29.7 Hf 20 and Ni 50.3 Ti 29.7 Zr 20
alloys formed by aging treatments at 500 and 550° C or slow furnace cooling and their …

Transformation-induced plasticity as the origin of serrated flow in an NiTi shape memory alloy

H Kato, K Sasaki - International Journal of Plasticity, 2013 - Elsevier
Transformation-induced plasticity was observed in an NiTi shape memory alloy. It was found
that the austenite phase of a solutionized 50.5 at.% Ni–Ti alloy shows a serrated stress …

Superelastic response and damping capacity of ultrahigh-strength [1 1 1]-oriented NiTiHfPd single crystals

HE Karaca, E Acar, B Basaran, RD Noebe… - Scripta materialia, 2012 - Elsevier
The superelastic behavior of an NiTiHfPd single-crystal shape memory alloy in compression
along the [111] orientation was investigated as a function of temperature. In the range of− 30 …

Dislocation slip stress prediction in shape memory alloys

J Wang, H Sehitoglu, HJ Maier - International Journal of Plasticity, 2014 - Elsevier
We provide an extended Peierls–Nabarro (P–N) formulation with a sinusoidal series
representation of generalized stacking fault energy (GSFE) to establish flow stress in a Ni 2 …

Enhancing Shape Memory Response of Additively Manufactured Niti Shape Memory Alloys by Texturing and Post-Processing Heat Treatment

SE Saghaian, M Nematollahi, GP Toker… - Shape Memory and …, 2023 - Springer
This study presents the shape memory behavior of Ni-rich NiTi shape memory alloy
fabricated by Laser Powder Bed Fusion Additive Manufacturing (L-PBF-AM) before and after …

Ni 含量和热处理对Ti-Ni 形状记忆合金相变和形变行为的影响

贺志荣, 王芳, 周敬恩 - 金属热处理, 2006 - cqvip.com
用示差扫描量热仪和拉伸试验对比研究了不同温度退火态Ti50. 5, Ni49. 5, Ti49. 8Ni50. 2
和Ti49. 4Ni50. 6 合金的相变特性和形变行为. 中温退火态Ti50. 5Ni49. 5 和Ti49. 8Ni50. 2 …

Plastic deformation of B2-NiTi–is it slip or twinning?

H Sehitoglu, Y Wu, S Alkan, E Ertekin - Philosophical Magazine …, 2017 - Taylor & Francis
The work addresses two main questions that have baffled the shape memory research
community. Firstly, the superb ductility of B2-NiTi cannot be solely attributed to slip on {0 1 1} …

[HTML][HTML] Superelasticity and shape memory behavior of NiTiHf alloys

H Sehitoglu, Y Wu, L Patriarca, G Li, A Ojha… - Shape Memory and …, 2017 - Springer
The NiTiHf high-temperature shape memory alloys represent a significant advancement in
extending the functionality of binary NiTi to elevated temperatures above 100° C. Despite …

[HTML][HTML] Dynamic mechanical response and fracture behaviour of Ti–Ni–C composites fabricated by directed energy deposition

J Wang, D East, EV Morozov, H Wang, PJ Hazell… - Materials Science and …, 2023 - Elsevier
This work studied the mechanical response and the associated microstructures and failure
mechanisms of additively manufactured Ti matrix composites with in-situ synthesised Ti 2 Ni …