Determination of Coherency Strain Fields in a Quenched and Aged Copper-Beryllium-Cobalt

本研究旨在更全面地了解应变场对两相材料强化机制的影响。该计划正在探索两相金属合金在时效过程中形成的共格应变场。用X射线弥散散射法确定应变场的大小。透射式电子显微镜允许将微观结构与应变场和硬度测量相关联。用相干场的扩展理论研究了花呢对比度。

This research is aimed at understanding more fully the effects of strain fields on the mechanisms of strengthening in two-phase materials. The program is exploring coherency strain fields that develop in two-phase metal alloys during aging. X- ray diffuse scattering is employed to determine the magnitude of the strain fields. Transmission electron microscopy permits a correlation of microstructure with the strain fields and hardness measurements. Tweed contrast is examined using an extended theory for coherency fields.