The .txt files contain the data for the respective Figures published in the manuscript "In situ Observation of Elastic Instability of Stress-Induced B19' Martensite in Thin NiTi Wires" (doi: ...).

data_Fig_3a_23C.txt : stress-strain data from Fig. 3(a) at 23C; first column: strain [%], second column: temperature [Celsius], third column: stress [MPa]  
data_Fig_3a_40C.txt : stress-strain data from Fig. 3(a) at 40C; first column: strain [%], second column: temperature [Celsius], third column: stress [MPa]
data_Fig_3a_80C.txt : stress-strain data from Fig. 3(a) at 80C; first column: strain [%], second column: temperature [Celsius], third column: stress [MPa]
data_Fig_3a_RUS_points.txt : strain-temperature-stress coordinates of points, where RUS measurement was performed; first column: strain [%], second column: temperature [Celsius], third column: stress [MPa]

data_Fig_3b_400MPa.txt : temperature-strain data from Fig. 3(b) at 400MPa; first column: stress [MPa], second column: temperature [Celsius], third column: strain [%]
data_Fig_3b_500MPa.txt : temperature-strain data from Fig. 3(b) at 500MPa; first column: stress [MPa], second column: temperature [Celsius], third column: strain [%]
data_Fig_3b_600MPa.txt : temperature-strain data from Fig. 3(b) at 600MPa; first column: stress [MPa], second column: temperature [Celsius], third column: strain [%]
data_Fig_3b_700MPa.txt : temperature-strain data from Fig. 3(b) at 700MPa; first column: stress [MPa], second column: temperature [Celsius], third column: strain [%]
data_Fig_3b_800MPa.txt : temperature-strain data from Fig. 3(b) at 800MPa; first column: stress [MPa], second column: temperature [Celsius], third column: strain [%]
data_Fig_3b_RUS_points.txt : strain-temperature-stress coordinates of points, where RUS measurement was performed; first column : stress [MPa], second column: temperature [Celsius], third column: strain [%]

data_Fig_4_RUS.txt : RUS data at stress-temperature points from data_Fig_3a_RUS_points.txt and data_Fig_3b_RUS_points.txt; first column: temperature [Celsius], second column: stress [MPa], third column: Young's modulus [GPa]

data_Fig_5a_LTSS.txt : stress-temperature data from LTSS experiment in tension; first column: temperature [Celsius], second column: stress [MPa]
data_Fig_5b_RUS.txt : RUS data measured during the LTSS experiment in tension; first column: temperature [Celsius], second column: Young's modulus [GPa]
data_Fig_5b_VFM.txt : evolution of volume fraction of martensite with temperature in LTSS experiment estimated from synchrotron diffraction data; first column: temperature [Celsius], second column: volume fraction of martensite [1]
data_Fig_5b_Young_mod_Martensite_cumput.txt : computed evolution of Young's modulus of martensite with temperature; first column: temperature [Celsius], second column: Young's modulus [GPa]

data_Fig_6_RUS_Youngs_mod.txt : RUS data measured during the LTSS experiment in torsion; first column: temperature [Celsius], second column: Young's modulus [GPa]
data_Fig_6_RUS_shear_mod.txt : RUS data measured during the LTSS experiment in torsion; first column: temperature [Celsius], second column: shear modulus [GPa]


