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Nucleation in the undercooled liquid state in the bulk metallic glass-forming composition Zr 52.5 Cu 17.9 Ni 14.6 Al 10 Ti 5 ͑VIT-105͒, produced using high purity ͑PA͒ and commercial purity ͑CA͒ raw materials was investigated using electrostatic levitation and ex situ neutron diffraction. The CA material was observed to have a lower density than the PA(More)
The evolution of temperature and thermal stresses during friction stir welding of Al6061-T6 was investigated by means of in situ, time resolved neutron diffraction technique. A method was developed to deconvolute the temperature and stress from the lattice spacing changes measured by neutron diffraction. The deep penetration capability of neutrons made it(More)
The residual strain profiles were measured through the thickness of friction-stir welded (FSW) plates using neutron diffraction to study the relationship between the angular distortion and the residual strain distribution. Three different weld specimens were prepared from a 6061-T6 aluminum alloy with the purpose of separating the effects of the frictional(More)
The Sargassum beds in Gamak Bay, Korea, have deteriorated over recent decades. We conducted numerical experiments to assess the applicability of artificial reefs and longlines for seaweed forest restoration in terms of propagule dispersal. We applied hydrodynamic (Environment Fluid Dynamics Code (EFDC)), wave (Simulating Waves Nearshore (SWAN)), and(More)
The low-cycle fatigue behavior of a cobalt-based superalloy was studied in-situ using neutron-diffraction experiments. The alloy exhibited a strain-induced formation of a hexagonal-close-packed (hcp) phase within its parent face-centered-cubic (fcc) phase at ambient temperature under strain-controlled fatigue conditions with a total strain range, ∆ε = 2.5%.(More)
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