 Numerical-experimental multi-scale study of Mg alloy AZ31B deformation by FEA & diffraction  CPFE model experimentally validated at all scales: macro-(Type I)/micro-(Type II)/nano-(TypeIII) Calibrated Model parameters: CRSS for detwinning of 23 MPa, for twinning of 46.5 MPa  Type I validation: model prediction matched to the macroscopic stress-strain response  Type II validation: model predicted transition between plastic deformation modes (slip, twinning and detwinning), and matched peak intensities from in situ XRD experiments  Type III validation: intra-granular stress statistics is revealed, but match to real twin morphology from in situ EBSD needs to be improved

Operando synchrotron XRD and in situ ptycho-tomography of single NMC811 particle revealed the correlation between lattice strain and degradation.

No abstract

The Tungsten Inert Gas (TIG) welding technique is extensively used to join various automobile and aerospace components, such as control arms, rotating blades, and vanes. Highly localized heating followed by rapid cooling during welding exert complex thermal and mechanical loading on the components and give rise to significant residual stress fields which may increase the likelihood of time-dependent failure by promoting crack initiation. In the context of engineering design for structural integrity and reliability of operation, quantitative residual stress evaluation in the finished parts needs to be carried out in a reproducible manner. Samples investigated in this study were TIG fill-in weldments in single crystal superalloy components with nearly cylindrical geometry.