209 その場AFM観察による短繊維強化複合材料の表面ナノ変形(金属基複合材料)

概要

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Discontinuously reinforced titanium composites containing TiB and/or TiC are emerging as promising materials for advanced aerospace applications. It is well-known that the mechanical properties of the composite are strongly affected by local deformation events such as damage initiated at the reinforcement/matrix interfaces, propagation of microcracks or shear bands in the matrix, etc. This study was conducted to investigate the in-situ surface nano-deformation characteristics of a discontinuously reinforced titanium composite using an atomic force microscope (AFM). The specimen used in this study was a TiB and TiC reinforced Ti-6Al-4V composite. Tensile test and in-situ observations were conducted using a loading device equipped with an AFM. Surface morphologies of the composite specimens were acquired before the loading and at various stages of the loading. The nano-deformation behavior of the Ti composite based on nanoscale in-situ AFM observation will be discussed.
一般社団法人日本機械学会の論文
2006-11-25