|About this Abstract
||2018 TMS Annual Meeting & Exhibition
||Phase Transformations and Microstructural Evolution
||Deformation-induced Phase Transformations during Biaxial or Strain Path Change: HR-DIC and Synchrotron X-ray Diffraction
||Efthymios Polatidis, Wei-Neng Hsu, Miroslav Smid, Steven Van Petegem, Helena Van Swygenhoven
|On-Site Speaker (Planned)
||Helena Van Swygenhoven
Recently, a novel miniaturized biaxial tensile machine was developed allowing applying in-plane biaxial stress and strain path changes inside i) a scanning electron microscope (SEM) to perform High Resolution Digital Image Correlation (HR-DIC) and (ii) in-situ during Laue or powder synchrotron diffraction experiments (Experimental Mechanics 57 (2017) 569).
In the present study, we report on in-situ experiments studying phase transformations in Ni-Ti, Ti-Nb alloys and TRIP steels subjected to uniaxial, equibiaxial loadings and strain path changes. The experiments are carried out insitu during X-ray powder diffraction and/or Laue diffraction at the MS and MicroXAS beamlines of the Swiss Light Source. These studies are complemented by conventional DIC and in-situ HR-DIC experiments inside an SEM to track and localize the strain associated with the transformation and obtain information concerning the martensite variants in respect to the crystallographic orientation of the parent phase.
||Planned: Supplemental Proceedings volume