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Neutron diffraction investigation of hysteresis reduction and increase in linearity in the stress-strain response of superelastic NiTi
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10.1063/1.2204650
/content/aip/journal/apl/88/20/10.1063/1.2204650
http://aip.metastore.ingenta.com/content/aip/journal/apl/88/20/10.1063/1.2204650
View: Figures

Figures

Image of FIG. 1.
FIG. 1.

Applied compressive stress vs macroscopic compressive strain measured by extensometry for undeformed, 8%, and 11% plastically deformed NiTi. The symbols (•) represent the stresses at which neutron diffraction spectra were recorded.

Image of FIG. 2.
FIG. 2.

Section of normalized diffraction spectra for 0%, 8%, and 11% plastically deformed NiTi at no load. The scattering vector is parallel to the prior deformation. The austenite (A) and martensite (M) peaks are identified.

Image of FIG. 3.
FIG. 3.

Section of diffraction spectra for 8% plastically deformed NiTi at different applied stresses. The spectra are normalized and displaced vertically for clarity. The scattering vector is parallel to the loading direction. The austenite (A) and martensite (M) peaks are identified.

Image of FIG. 4.
FIG. 4.

Section of diffraction spectra from unloaded 8% plastically deformed NiTi without and with cycling (six load-unload cycles). The scattering vector is parallel to the loading direction. Inset shows the respective macroscopic stress-strain curves from 8% plastically deformed NiTi with and without cycling. The austenite (A) and martensite (M) peaks are identified.

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/content/aip/journal/apl/88/20/10.1063/1.2204650
2006-05-18
2014-04-24
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752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: Neutron diffraction investigation of hysteresis reduction and increase in linearity in the stress-strain response of superelastic NiTi
http://aip.metastore.ingenta.com/content/aip/journal/apl/88/20/10.1063/1.2204650
10.1063/1.2204650
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