|About this Abstract
||2016 TMS Annual Meeting & Exhibition
||Metal and Polymer Matrix Composites II
||Effect of Mushy State Rolling on Microstructure, Micro Hardness and Microtexture in Al-4.5Cu-5TiB<sub>2</sub> In-situ Composite
||Monalisa Mandal, Rahul Mitra
|On-Site Speaker (Planned)
Al-4.5Cu-5TiB<sub>2</sub> in-situ composite, fabricated by stir casting through mixed salt reaction route process, needs further processing to exclude casting defects. Mushy state rolling has been developed as an easy and energy efficient method for microstructural refinement and improvement in mechanical properties. It is carried out at 632<sup>o</sup>C with 10-30 volume percent of liquid for up to 5% reduction in thickness. Mushy state rolling of the as-cast composite gives rise to a bimodal microstructure, which consists of very fine equiaxed grains adjacent to the rolled surface and comparatively large elongated grains away from the rolled surface of the sample. Microhardness of the mushy state rolled sample has been observed to decrease gradually from surface to centre of the rolled sample. The variations in the dislocation substructure formation and degree of local misorientation with respect to differently shaped and sized grains have been examined with the help of TEM and EBSD analysis.
||Planned: A print-only volume