Results 51 to 60 of about 74,781 (241)

Determination of Phase Transformation and Activation Energy in High Temperature Shape Memory TiVAl Alloy

Hittite Journal of Science and Engineering, 2018
T i-V-Al alloys are a good candidates for lightweight high temperature shape memory alloys. Due to their excellent mechanical properties with low density, in industrial applications, there are widely used as high temperature shape memory alloys. However,
Semra Ergen
doaj   +1 more source

Effect of Thermomechanical Processing on the Microstructure, Properties, and Work Behavior of a Ti50.5 Ni29.5 Pt20 High-Temperature Shape Memory Alloy [PDF]

, 2006
TiNiPt shape memory alloys are particularly promising for use as solid state actuators in environments up to 300 C, due to a reasonable balance of properties, including acceptable work output.
Begelow, Glen, Brown, Jeff, Draper, Susan, Garga, Anita, Gaydosh, Darrell, Lerch, Brad, Noebe, Ronald, Padula, Santo, II, Penney, Nicholas   +8 more
core   +1 more source

Advances in martensitic transformations in Cu-based shape memory alloys achieved by in situ neutron and synchrotron X-ray diffraction methods [PDF]

, 2012
This article deals with the application of several X-ray and neutron diffraction methods to investigate the mechanics of a stress induced martensitic transformation in Cu-based shape memory alloy polycrystals. It puts experimental results obtained by two
Berveiller, Sophie, Malard, Benoît, Patoor, Etienne, Sittner, Petr   +3 more
core   +8 more sources

Shape Memory Effect Driven by Diffusionless and Diffusional Transformations at Elevated Temperatures

Успехи физики металлов, 2002
Several alloy systems can be selected for high-temperature shape-memory alloys, defined as alloys with stable reverse martensitic-transformation temperatures above 100°C.
G. S. Firstov, Yu. N. Koval, J. Van Humbeeck
doaj   +1 more source

Martensitic Transition and the Role of Ordering in Copper Based Shape Memory Alloys [PDF]

, 2013
Shape memory effect is a peculiar property exhibited by certain alloy system, and shape memory behavior is evaluated by the structural changes in microscopic scale.
Adiguzel, O.
core  

Hot deformation behavior of Ni50.4Ti34.6Hf15 high-temperature shape memory alloy

Journal of Materials Research and Technology
Due to their extreme requirements, conventional Ni–Ti shape memory alloys (SMAs) are no longer suitable for aerospace applications. Adding Hf to Ni–Ti SMAs can significantly enhance their suitability for aerospace applications, particularly in high ...
Muchi Jiang, Xiao Chen, Hasfi F. Nurly, Xingyuan Yang, Yi Liu, Yusheng Cai, Dechun Ren, Haibin Ji, Jiafeng Lei   +8 more
doaj   +1 more source

Twin-based martensite stabilizing and improving the shape memory response of near equiatomic NiTi alloy through multi-axial forging

Journal of Materials Research and Technology, 2022
In the present study, a high cumulative true strain (∼4.5) was applied on a near equiatomic NiTi shape memory alloy through multi-axial forging in the course of “isothermal” and “continuous cooling” regimes.
A. Shamsolhodaei, A. Zarei-Hanzaki, H.R. Abedi, A. Safdel, M. Peterlechner   +4 more
doaj   +1 more source

Elastic and thermodynamic properties of the shape-memory alloy AuZn

, 2001
The current work reports on the elastic shear moduli, internal friction, and the specific heat of the B2 cubic ordered alloy AuZn as a function of temperature. Measurements were made on single-crystal and polycrystalline samples using Resonant Ultrasound
A. Migliori, B. E. Lang, B. F.Woodfield, D. J. Thoma, F. Chu, J. Boerio-Goates, J. C. Lashley, M. Lopez, T. W. Darling   +8 more
core   +1 more source

Application of Laguerre based adaptive predictive control to Shape Memory Alloy (SMA) actuators [PDF]

, 2013
This paper discusses the use of an existing adaptive predictive controller to control some Shape Memory Alloy (SMA) linear actuators. The model consists in a truncated linear combination of Laguerre filters identified online.
GIRAUD-AUDINE, Christophe, KANNAN, S., PATOOR, Etienne   +2 more
core   +8 more sources

Martensitic Transformation and Shape Memory Effect of NiCoMnSn High Temperature Shape Memory Alloy [PDF]

Journal of Materials Engineering and Performance, 2012
This article studies the dependence of martensitic transformation on Mn:Sn ratio in Ni43Co7Mn50−x Sn x alloy and the shape memory behavior of Ni43Co7Mn43Sn7 in detail. The results show that all the transformation temperatures show a linear decrease with the decrease of Mn:Sn ratio. The similar tendency
F. Chen, Y. X. Tong, X. L. Lu, B. Tian, L. Li, Y. F. Zheng   +5 more
openaire   +1 more source