David P. Field

TL;DR: In this article, a comprehensive understanding of the fundamentals of the microstructural evolution during FSW/P has been developed, including the mechanisms underlying the development of grain structures and textures, phases, phase transformations and precipitation.

TL;DR: In this article, the cube orientation is developed by increasing the grain size before cold rolling, and an equation is derived to predict the relative grain bounday mobility as a function of misorientation angle and temperature.

TL;DR: In this article, the geometrically necessary dislocation (GND) density using electron backscatter diffraction (EBSD) has become rather common place in modern metallurgical research, but the utility of this measure as an indicator of the expected flow behavior of the material is not obvious.

TL;DR: In this paper, the microstructural variation along the depth of twin-roll cast sheet AZ31 Mg alloy was achieved by applying severe plastic deformation via intensified shot peening on the surface of the workpiece.

TL;DR: In this paper, electron back scatter diffraction (EBSD) and electron channelling contrast imaging (ECCI) were used to quantify the evolution of the geometrically necessary dislocation (GND) structure and the martensite formed during tensile straining to reveal the deformation mechanisms in the presence of microstructural heterogeneities.