TITLE

The Influence of Compressive Stress on the Order Parameter of 18R Martensites in CuAIBe Shape Memory Alloys

AUTHOR(S)
Balo, Ş. Nevin; Ceyland, Mehmet
PUB. DATE
June 2009
SOURCE
Turkish Journal of Science & Technology;Jun2009, Vol. 4 Issue 1, p73
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
Phase transformations and order parameter in the shape memory alloys are sensitive to the stress applications and these stresses may cause important changes in crystallographic properties of alloys. In this study, five stage of compressive stress were applied onto two CuAlBe shape memory alloys and some morphologic and crystallographic changes were observed. The order parameters, a/b, of 18R martensite were increased by increasing stress application.
ACCESSION #
43565704

 

Related Articles

  • Nature of hardness evolution in nanocrystalline NiTi shape memory alloys during solid-state phase transition. Amini, Abbas; Chun Cheng // Scientific Reports;8/23/2013, p1 

    Due to a distinct nature of thermomechanical smart materials' reaction to applied loads, a revolutionary approach is needed to measure the hardness and to understand its size effect for pseudoelastic NiTi shape memory alloys (SMAs) during the solid-state phase transition. Spherical hardness is...

  • SHOCK-WAVE RESPONSE OF Ni-Ti SHAPE MEMORY ALLOYS IN THE TRANSFORMATION TEMPERATURE RANGE. Razorenov, S. V.; Garkushin, G. V.; Kanel, G. I.; Popov, N. N. // AIP Conference Proceedings;12/28/2009, Vol. 1195 Issue 1, p1027 

    The behavior of Ni48.9-Ti51.1 and Ni50.6-Ti49.4 shape memory alloys under shock wave loading was investigated in the temperature range of their martensitic transformations. Tested samples had the grain sizes ∼15 to 30 μm and 0.05 to 0.3 μm. Measured free surface velocity histories has...

  • PART I: 'Smart metals' providing actuation, sealing, and completion functions downhole.  // Offshore;Dec2001, Vol. 61 Issue 12, p58 

    Explores the growing applications of smart metals or shape metal alloys (SMA) in petroleum industry. Functions of the SMA; Limitations of the SMA applications in the petroleum industry; Actuation application of smart metals.

  • Influence of structural transition on transport and optical properties of Ni[sub 2]MnGa alloy. Zhou, Y.; Jin, Xuesong; Xu, Huibin; Kudryavtsev, Y. V.; Lee, Y. P.; Rhee, J. Y. // Journal of Applied Physics;6/15/2002, Vol. 91 Issue 12, p9894 

    The transport and optical properties of Ni[sub 2]MnGa alloy in the martensitic and austenitic states were investigated. The dependence of the temperature coefficient of resistivity on temperature shows kinks at the structural and ferroparamagnetic transitions. Electron-magnon and electron-phonon...

  • A note on constrained shape memory alloys upon thermal cycling. Pan, G. H.; Huang, W. M. // Journal of Materials Science;Dec2006, Vol. 41 Issue 23, p7964 

    In this paper, we present a systematical study on the constrained shape memory alloys upon thermal cycling. The focuses are the transformation temperature interval and hysteresis. Closed-form expressions are obtained for biased actuators and thin films atop an elastic substrate.

  • Utilizing shape memory alloys to enhance the performance and safety of civil infrastructure: a review. Alam, M. S.; Youssef, M. A.; Nehdi, M. // Canadian Journal of Civil Engineering;Sep2007, Vol. 34 Issue 9, p1075 

    Shape memory alloys (SMAs) are special materials with a substantial potential for various civil engineering applications. The novelty of such materials lies in their ability to undergo large deformations and return to their undeformed shape through stress removal (superelasticity) or heating...

  • A mesoscopical model of shape memory alloys. Roubíček, Tomáš; Kružík, Martin; Koutný, Jan // Proceedings of the Estonian Academy of Sciences, Physics, Mathem;Jun2007, Vol. 56 Issue 2, p146 

    Multiwell stored energy related to austenite and particular martensitic variants as well as a dissipation pseudopotential are used to assembly a mesoscopical model for an isothermal rate-independent martensitic transformation in shape memory alloys. Theoretical results concerning numerical...

  • Smart Materials Respond to Changing Environments. Sidawi, Danielle // R&D Magazine;Mar2005, Vol. 47 Issue 3, p24 

    Presents information on studies being done on piezoelectric, magnetostrictive, and shape memory alloys (SMA), the classes of smart material systems. Research effort being conducted on piezoelectric motors and ferroelectric materials; Development of a polymer platform technology that can confer...

  • Research and application of novel planar bending embedded shape memory alloy actuator. Yang, K.; Gu, C. L. // Proceedings of the Institution of Mechanical Engineers -- Part C;Feb2007, Vol. 221 Issue 2, p249 

    To overcome low-response speed and low-control precision in the existing traditional shape memory alloy (SMA) actuators, a new type of structure named planar bending embedded SMA actuator was developed. Two SMA wires were embedded in parallel with the axis of the elastic rod. The recovering...

Share

Read the Article

Courtesy of THE LIBRARY OF VIRGINIA

Sorry, but this item is not currently available from your library.

Try another library?
Sign out of this library

Other Topics