Experimental study on rate dependence of macroscopic domain and stress hysteresis in NiTi shape memory alloy strips

Zhang, Xinghua; Feng, Peng; He, Yongjun; Yu, Tongxi; Sun, Qingping

doi:10.1016/j.ijmecsci.2010.08.007

Cited by 183 publications

(140 citation statements)

References 34 publications

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“…Moiré interferometry and digital image correlation are typical examples of such techniques, which collect information on the response of the tested SMA samples by distinguishing the different phases through their strain amplitude [24][25][26][27][28]. Infrared thermography has also been employed to measure the inhomogeneous temperature distributions associated with the phase change in SMAs, giving relevant information on the features of the martensitic transformation [29][30][31][32][33][34][35].…”

Section: Introductionmentioning

confidence: 99%

Strain intermittency in shape-memory alloys

et al. 2015

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We study experimentally the intermittent progress of the mechanically-induced martensitic transformation in a Cu-Al-Be single crystal through a full-field measurement technique: the grid method. We utilize an in-house especially designed gravity-based device, wherein a system controlled by water pumps applies a perfectly monotonic uniaxial load through very small force increments. The sample exhibits hysteretic superelastic behavior during the forward and reverse cubic-monoclinic transformation, produced by the evolution of the strain field of the phase microstructures. The in-plane linear strain components are measured on the sample surface during the loading cycle, and we characterize for the first time the strain intermittency in a number of ways, showing the emergence of power-law behavior for the strain avalanching over almost six decades of magnitude. We also describe the non-stationarity and the asymmetry observed in the forward vs. the reverse transformation. The present experimental approach, which allows for the monitoring of the reversible martensitic transformation both locally and globally in the crystal, proves useful and enhances our capabilities in the analysis and possible control of transition-related phenomena in shape-memory alloys.

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Section: Introductionmentioning

confidence: 99%

Strain intermittency in shape-memory alloys

et al. 2015

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“…At the millimeter scale, the nucleation and propagation of martensite has been studied by various in situ techniques such as optical microscopy (OM) [24][25][26][27][28], digital image correlation [29][30][31] and thermal observations with an infrared camera [32,33]. In large single crystals loaded uniaxially the evolution of martensite plates seems to be one of nucleation, growth (both perpendicular and parallel to the loading axis) and coalescence of plates [24,25].…”

Section: Introductionmentioning

confidence: 99%

Transition from many domain to single domain martensite morphology in small-scale shape memory alloys

Ueland

Schuh

2013

Acta Materialia

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“…For example, the number of new phase strips in microtubes increases with the rate of tension, see Zhang et al (2010).…”

Section: Discussionmentioning

confidence: 99%

“…In particular, the nonhomogeneous temperature field due to PT are used by Pieczyska et al (2006aPieczyska et al ( , 2009Pieczyska (2010) for the visualisation of PT. Dependence of number of bands in microtubes on the rate of loading can be explained as the transition from the isothermal loading to adiabatic one, see Zhang et al (2010) and He and Sun (2010b).…”

Section: Discussionmentioning

confidence: 99%