Spray Deposition Processing of Al/SiC MMC Armor Materials and Ta Alloys for Army Applications

摘要

In this research program, the spray atomization and deposition technique was both experimentally and numerically studied to process ceramic particulate reinforced (including functionally graded reinforcement distributions) Al alloy metal matrix composites (MMCs) as armor materials and Ta alloys for Army applications such as shaped charged liners and explosively formed projectiles. In this final progress report, the experimental and numerical results are described and discussed in five individual sections: investigation of thermal residual stresses in layered SiC/Al composite using the finite element method and X-ray diffraction; spray forming and co-injection of particle reinforced TiAl/TiB2 composites; spray atomization and deposition of tantalum alloys; low pressure spray forming; modeling of porosity during spray forming; and a summary on the investigation on creep behavior of Al alloys and SiC/Al composites.