Hostname: page-component-cd9895bd7-gvvz8 Total loading time: 0 Render date: 2024-12-26T09:23:25.808Z Has data issue: false hasContentIssue false
  • English
  • Français

High-energy synchrotron X-ray diffraction measurements of simple bending of pseudoelastic NiTi shape memory alloy wires

Published online by Cambridge University Press:  23 May 2016

Baozhuo Zhang  and
Marcus L. Young
Baozhuo Zhang*
Affiliation:
Department of Materials Science and Engineering, University of North Texas, Denton, Texas 76207
Marcus L. Young
Affiliation:
Department of Materials Science and Engineering, University of North Texas, Denton, Texas 76207
*
a) Author to whom correspondence should be addressed. Electronic mail: zhangbaozhuo123@gmail.com
Get access Rights & Permissions [Opens in a new window]

Abstract

Many technological applications of austenitic shape memory alloys (SMAs) involve cyclical mechanical loading and unloading in order to take advantage of pseudoelasticity. In this paper, we investigated the effect of mechanical bending of pseudoelastic NiTi SMA wires using high-energy synchrotron radiation X-ray diffraction (SR-XRD). Differential scanning calorimetry was performed to identify the phase transformation temperatures. Scanning electron microscopy images show that micro-cracks in compressive regions of the wire propagate with increasing bend angle, while tensile regions tend not to exhibit crack propagation. SR-XRD patterns were analyzed to study the phase transformation and investigate micromechanical properties. By observing the various diffraction peaks such as the austenite (200) and the martensite ( ${\bar 1}12$ ), ( ${\bar 1}03$ ), ( ${\bar 1}11$ ), and (101) planes, intensities and residual strain values exhibit strong anisotropy, depending upon whether the sample is in compression or tension during bending.

Keywords

synchrotron radiation X-ray diffraction (SR-XRD)NiTi shape memory alloy wirebending
Type
Technical Articles
Information
Powder Diffraction , Volume 31 , Issue 2 , June 2016 , pp. 104 - 109
Copyright
Copyright © International Centre for Diffraction Data 2016 

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

References

Bechle, N. J. and Kyriakides, S. (2014). “Localization in NiTi tubes under bending,” Int. J. Solids Struct. 51(5), 967–980.CrossRefGoogle Scholar
Cai, S., Schaffer, J. E., Daymond, M. R., Yu, C., and Ren, Y. (2014). “Effect of heat treatment temperature on nitinol wire,” Appl. Phys. Lett. 105(7), 071904.CrossRefGoogle Scholar
Carl, M., Zhang, B., and Young, M. L. (2016). “Texture and strain measurements from bending of NiTi shape memory alloy wires,” Shape Memory Superelast., submitted.CrossRefGoogle Scholar
Daymond, M. R., Young, M. L., Almer, J. D., and Dunand, D. C. (2007). “Strain and texture evolution during mechanical loading of a crack tip in martensitic shape-memory NiTi,” Acta Mater. 55(11), 3929–3942.CrossRefGoogle Scholar
Dughaish, Z. H. (2014). “Effect of proton irradiation on some physical properties of nitinol (NiTi) shape memory alloy: a review,” Arab. J. Sci. Eng. 39, 511–524.CrossRefGoogle Scholar
Eggeler, G., Hornbogen, E., Yawny, A., Heckmann, A., and Wagner, M. (2004). “Structural and functional fatigue of NiTi shape memory alloys,” Mater. Sci. Eng. A 378(1–2), 24–33.CrossRefGoogle Scholar
Elahinia, M. H., Hashemi, M., Tabesh, M., and Bhaduri, S. B. (2012). “Manufacturing and processing of NiTi implants,” Progr. Mater. Sci. 57, 911–946.CrossRefGoogle Scholar
Figueiredo, A. M., Modenesi, P., and Buono, V. (2009). “Low-cycle fatigue life of superelastic NiTi wires,” Int. J. Fatigue 31, 751–758.CrossRefGoogle Scholar
Hammersley, A. P. (1997). FIT2D: “An Introduction and Overview” (Report ESRF97HA02T).Google Scholar
Hammersley, A. P. (1998). E.I.R., ESRF98HA01T, FIT2D V9.129 Reference Manual V3.1. European Synchrotron Radiation Facility Internal.Google Scholar
Humbeeck, J. V. (1999). “Non-medical applications of shape memory alloys,” Mater. Sci. Eng. A 273–275, 134–148.CrossRefGoogle Scholar
James, B., Foulds, J., and Eiselstein, L. (2005). “Failure analysis of NiTi wires used in medical applications,” J. Failure Anal. Prevention 5(5), 82–87.CrossRefGoogle Scholar
Kudoh, Y., Tokonami, M., Miyazaki, S., and Otsuka, K. (1985). “Crystal structure of the martensite in Ti-49.2 at. %Ni alloy analyzed by the single crystal X-ray diffraction method,” Acta Metall. 33, 2049–2056.CrossRefGoogle Scholar
Otsuka, K. and Ren, X. (2005). “Physical metallurgy of Ti–Ni-based shape memory alloys,” Progr. Mater. Sci. 50(5), 511–678.CrossRefGoogle Scholar
Pelton, A. R., Fino-Decker, J., Vien, L., Bonsignore, C., Saffari, P., Launey, M., and Mitchell, M. R. (2013). “Rotary-bending fatigue characteristics of medical-grade Nitinol wire,” J. Mech. Behav. Biomed. Mater. 27, 19–32.CrossRefGoogle ScholarPubMed
Sateesh, V. L., Senthilkumar, P., Satisha, , and Dayananda, G.N. (2014). “Low cycle fatigue evaluation of NiTi SESMA thin wires,” J. Mater. Eng. and Perf. 23, 2429–2436.CrossRefGoogle Scholar
Wagner, M., Sawaguchi, T., Kaustrater, G., Hoffken, D., and Eggeler, G. (2004). “Structural fatigue of pseudoelastic NiTi shape memory wires,” Mater. Sci. Eng. A 378(1–2), 105–109.CrossRefGoogle Scholar
Young, M. L., Almer, J. D., Dymond, M. R., Haeffner, D. R., and Dunand, D. C. (2007). “Load partitioning between ferrite and cementite during elasto-plastic deformation of an ultrahigh-carbon steel,” Acta Mater. 55(6), 1999–2011.CrossRefGoogle Scholar
Young, M. L., Gollerthan, S., Baruj, A., Frenzel, J., Schmahl, W. W., and Eggeler, G. (2013). “Strain mapping of crack extension in pseudoelastic NiTi shape memory alloys during static loading,” Acta Mater. 61, 5800–5806.CrossRefGoogle Scholar
Young, M. L., Wagner, M. F.-X., Frenzel, J., Schmahl, W. W., and Eggeler, G. (2010). “Phase volume fractions and strain measurements in an ultrafine-grained NiTi shape-memory alloy during tensile loading,” Acta Mater. 58, 2344–2354.CrossRefGoogle Scholar