Central cracking in cross-wedge-rolled workpieces results in high wastage and economic loss. Recent cross-wedge rolling tests on two batches of steel showed that one batch formed central cracks, while the other was crack-free. The batches were both nominally of the same chemical composition and thermomechanical treatment history. In addition, both ...
status: published
Heterogeneous structured materials achieve a combination of high strength and extreme ductility due to synergetic strengthening driven by conditions in the interfacial region. Although the origin of synergetic strengthening has been revealed to be strain incompatibility in the interfacial region, the effect of the strength difference between hard a...
Manganese-bearing intermetallic compounds (IMCs) are important for limiting micro-galvanic corrosion of magnesium-aluminum alloys and can initiate cracks under tensile load. Here, we use electron backscatter diffraction (EBSD), deep etching, and focussed ion beam (FIB) tomography to investigate the types of Al-Mn phases present, their faceted growt...
The volume and grain‐size of sediment supplied from catchments fundamentally control basin stratigraphy. Despite their importance, few studies have constrained sediment budgets and grain‐size exported into an active rift at the basin scale. Here, we used the Corinth Rift as a natural laboratory to quantify the controls on sediment export within an ...
Depositional stratigraphy represents the only physical archive of palaeo‐sediment routing and this limits analysis of ancient source‐to‐sink systems in both space and time. Here, we use palaeo‐digital elevation models (palaeoDEMs; based on high‐resolution palaeogeographic reconstructions), HadCM3L general circulation model climate data and the BQAR...
Low burnup samples of U7wt%Mo with 10%, 15%, 20% and 25% U-235 burnup were analysed by transmission electron microscopy in order to study the formation mechanism of the fission gas nanobubble lattice. The analysis showed that the bubble lattice formation starts at a burnup lower than 10%, preferentially at grain boundaries before extending towards ...
Knowledge of aeolian sediment dynamics over an elevated berm with an upwind topographic obstacle is rather scarce and is of utmost importance for understanding aeolian transport from beach to dunes. This study reports on a field experiment designed to carry out simultaneous measurements of wind and aeolian sediment dynamics across a human-construct...
status: published
