A new, high-field side scanning probe has been added to Alcator C-Mod's complement of edge diagnostics. The WASP is designed to provide all the benefits of a linear plunge, multi-electrode scanning probe while working from the confined space of the inner tokamak wall. The drive mechanism is an embedded coil which produces a torque with the ambient toroidal magnetic field when energized, thus al...

Influences of two different sample preparation methods, mechanical polishing and plunge cutting, on nanoindentation behavior of a Zr-based bulk metallic glass were studied. Mechanical polishing suppresses the serrated flow but promotes the creep. In contrast, plunge cutting promotes the serrated flow but suppresses the creep. However, hardness and elastic modulus obtained from these two methods...

Friction stir welding (FSW) is an effective solid-state joining process that has the potential to overcome common problems correlated with conventional fusion processes. FSW used for of metallic materials, in particular Al alloys (non-heat-treatable and heat-treatable). The heat produced by friction between rotating tool workpiece material generates a softened region near tool. Although input p...