Structure and substructure characterization of solution-treated Ni50. 3Ti29. 7Hf20 high-temperature shape memory alloy

J Dong, T Umale, B Young, I Karaman, KY Xie - Scripta Materialia, 2022 - Elsevier
We investigate the structure and substructure of the solution-treated martensitic Ni 50.3 Ti
29.7 Hf 20 high-temperature shape memory alloy (SMA) by transmission electron …

Property and microstructure of Ni50. 3Ti29. 7Hf20 high-temperature shape memory alloys with different aging conditions

J Dong, A Demblon, T Umale, D Zhao, G Valentino… - Acta Materialia, 2024 - Elsevier
NiTiHf is a class of promising high-temperature shape memory alloys (SMAs) that find many
applications. However, their complex martensitic microstructure and attendant …

Microstructural characterization and shape memory characteristics of the Ni50. 3Ti34. 7Hf15 shape memory alloy

A Evirgen, I Karaman, R Santamarta, J Pons… - Acta Materialia, 2015 - Elsevier
The effect of precipitation on the microstructure and shape memory characteristics of the Ni
50.3 Ti 34.7 Hf 15 shape memory alloy has been investigated via transmission electron …

Microstructure and martensitic transformation of NiTiHfSc high temperature shape memory alloys

XM Fan, SY Sun, YX Tong, L Li, B Tian, F Chen… - Journal of Alloys and …, 2019 - Elsevier
In present work, microstructure and martensitic transformation of Ni 49 Ti 36-x Hf 15 Sc x (x=
0, 0.5, 1, 2 at.%) alloys were investigated. The results show that the Sc addition significantly …

Stress-induced martensitic transformation behavior of a Ti–Ni–Hf high temperature shape memory alloy

XL Meng, W Cai, YF Zheng, YX Tong, LC Zhao… - Materials Letters, 2002 - Elsevier
The stress-induced martensitic transformation behavior and the microstructure of stress-
induced martensite (SIM) in a Ti36Ni49Hf15 high temperature shape memory alloy (SMA) …

[引用][C] In situ TEM observations of martensite-austenite transformations in a Ni49Ti36Hf15 high temperature shape memory alloy

M Liu, XM Zhang, L Liu, YY Li, AV Shelyakov - Journal of materials …, 2000 - Springer
It is well known that the shape memory effect results from the reversible martensitic
transformation in shape memory alloys (SMAs). Therefore, the understanding of mechanism …

Structure and substructure of martensite in a Ti36. 5Ni48. 5Hf15 high temperature shape memory alloy

XD Han, WH Zou, R Wang, Z Zhang, DZ Yang - Acta materialia, 1996 - Elsevier
The martensite structure and substructure in a Ti36. 5Ni48. 5Hf15 high temperature shape
memory alloy were investigated by X-ray diffraction, transmission electron microscopy (TEM) …

Microstructure and martensitic transformation behaviors of a Ti–Ni–Hf–Cu high-temperature shape memory alloy ribbon

XL Meng, YD Fu, W Cai, QF Li… - Philosophical magazine …, 2009 - Taylor & Francis
The Ti36Ni41Hf15Cu8 melt-spun ribbon undergoes a B2↔ B19′ transformation upon
cooling and heating. When the Ti36Ni41Hf15Cu8 melt-spun ribbon is annealed at 873 K for …

Effect of precipitation on the microstructure and the shape memory response of the Ni50. 3Ti29. 7Zr20 high temperature shape memory alloy

A Evirgen, I Karaman, RD Noebe, R Santamarta… - Scripta Materialia, 2013 - Elsevier
The effect of nano-precipitation on the shape memory characteristics and martensite
microstructure of the Ni50. 3Ti29. 7Zr20 high temperature shape memory alloy was studied …

Microstructures, martensitic transformation, and mechanical behavior of rapidly solidified Ti-Ni-Hf and Ti-Ni-Si shape memory alloys

XL Han, KK Song, LM Zhang, H Xing, B Sarac… - Journal of Materials …, 2018 - Springer
In this work, the microstructure and mechanical properties of rapidly solidified Ti 50− x/2 Ni
50− x/2 Hf x (x= 0, 2, 4, 6, 8, 10, and 12 at.%) and Ti 50− y/2 Ni 50− y/2 Si y (y= 1, 2, 3, 5, 7 …