Paper Title:
Textural Modifications during Recovery in Ti-Rich Ni-Ti Shape Memory Alloy Subjected to Low Level of Cold Work Reduction
  Abstract

In shape memory alloys (SMA), the texture can be an interesting factor influencing the anisotropic physical and mechanical characteristics during the phase transformations. It is well known that the texture significantly influences the stress-strain curve and shape memory strain of NiTi SMA. The aim of the present experiment was to analyze the textural modifications in the Ti-rich Ni-Ti SMA after annealing at moderate (500°C for 30 min) and subsequent low level of cold work reduction (10% thickness reduction). The textural results were obtained by X-Ray Diffraction (XRD) during thermal cycling in three points: (i) at room temperature (B19’ phase, after cold work), (ii) at 180°C (B2 phase), and (iii) at room temperature (B19’ phase, after cooling from 180°C). The phase transformations were characterized by Differential Scanning Calorimetry (DSC) and XRD.

  Info
Periodical
Materials Science Forum (Volumes 636-637)
Edited by
Luís Guerra ROSA and Fernanda MARGARIDO
Pages
618-623
DOI
10.4028/www.scientific.net/MSF.636-637.618
Citation
A. S. Paula, K. K. Mahesh, N. Schell, F. M. Braz Fernandes, "Textural Modifications during Recovery in Ti-Rich Ni-Ti Shape Memory Alloy Subjected to Low Level of Cold Work Reduction", Materials Science Forum, Vols. 636-637, pp. 618-623, 2010
Online since
January 2010
Export
Price
$32.00
Share

In order to see related information, you need to Login.

In order to see related information, you need to Login.

Authors: Xili Lu, Wei Cai, Lian Cheng Zhao
Abstract:Poly(L-lactide) (PLLA) was synthesized by the ring-opening polymerization of L-lactide and the shape memory behavior was studied using DSC...
2399
Authors: Carlos Augusto Nascimento Oliveira, Euclides Apolinário Cabral De Pina, Cezar Henrique Gonzalez, Carlos José de Araújo, U.S.L. Filho, Oscar Olimpio de Araujo Filho
Abstract:The use of smart material such as Ti-Ni in actuators application requires an intense mechanical and metallurgical investigation to understand...
49
Authors: Shi Chun Zhu, Xiao Feng Lu, Jian Ming Gong
Abstract:In this paper, effect of pre-deformation and ageing on compressive behavior of Ti-58.25wt%Ni was investigated at room temperature. Through...
375
Authors: Katarzyna Bałdys, Grzegorz Dercz, Łukasz Madej
Abstract:The ferromagnetic shape memory alloys (FSMA) are relatively the brand new smart materials group. The most interesting issue connected with...
171
Authors: Mai Shun Qi, Ya Li Li, Lai Lei Wu, Jian Hua Liu, Rui Jun Zhang
Chapter 02: Testing and Analysis Techniques of Material
Abstract:The transformation temperature and time of α+γ2 to ß in a Cu-Al alloy after cryogenic treatment during heating were measured by...
200