Figure 3
From: New intrinsic mechanism on gum-like superelasticity of multifunctional alloys
The TEM observations to show the origin of the different phase transitions.
(a), (b) and (c) The HAADF-STEM image for [001]β crystal axis with differently adjusted contrasts to show the existence of clusters of heavy atoms in the B2-ordered structure with the EDS spectra (c) at the Ti- and Nb- rich area marked inside those white and purple frames in (b). (d), (e), The nano-beam electron diffraction pattern to show the existence of weak diffuse scattering at 1/2(112)β position and its corresponding dark field image to show the random distribution of α" nanodomains and B2 clusters inside the disordered BCC matrix. (f), The 1-dimensional HE-XRDS pattern to show the strong diffuse scattering signals located at (001)β and (021)α″positions.
