|About this Abstract
||2016 TMS Annual Meeting & Exhibition
||Materials and Fuels for the Current and Advanced Nuclear Reactors V
||The Effect of Grain Size on the Homogenization Kinetics and Eutectoid Decomposition in U-10 wt% Mo Alloys
||Vineet Joshi, Curt Lavender, Zhijie Xu, Dean Paxton, Douglas Burkes
|On-Site Speaker (Planned)
U-10wt% Mo alloys are typically cast prior to thermomechanical processing, and the as-cast microstructure resembles an inhomogeneous microstructure consisting of molybdenum rich and lean regions. This as-cast structure must be homogenized by thermal treatment to produce a uniform molybdenum distribution. In the current work, U-10Mo alloys with grain sizes of 30 microns and 125 microns were subjected to homogenization heat treatment at 800, 850, 900 and 1000°C for several times. It was determined that the homogenization kinetics were faster for the 30 microns grained samples than the 125 microns samples. The grain growth during the homogenization heat treatment was impeded by the uranium carbide particles which were located at the grain boundaries. Further; aging studies were performed on the homogenized samples at 500°C to determine the eutectoid decomposition kinetics. It was determined that the kinetics of decomposition was faster in the fine grained U-10Mo than the large grain size samples.
||Planned: A print-only volume