Highstrain rate superplasticity of ceraic particulate reinforced aluminum composites and the fabrication processing

摘要

Metal matrix composites (MMC) fabricated by a vortex method, squeeze casting and PM method have already been applied to automobile engine components, satellite components and even for semi-conductor packings. It is important to clarify deformation mechanism involved in high strain rate superplasticity (HSRS) which exhibits a total elongation of 250 approx 600