Effects of Ternary Trace Additions on the Interfacial Structure and Growth Kinetics of Precipitate Plates in Substitutional Alloys

这项研究是一项实验性计划， 定量透射电子显微镜和理论 分析以澄清沉淀物成核机制， 模型合金系统中的生长。 三进制加法的作用 影响增长的因素。 溶质缺陷密度 偏析、台阶生长、沉淀物形态和间距 的系统性变化的影响进行了分析， 合金添加和时效处理。 原位高分辨率 电子显微镜显示原子生长机制 基于位错壁架和量化相间边界 议案

This research is an experimental program employing quantitative transmission electron microscopy and theoretical analyses to clarify the mechanisms of precipitate nucleation and growth in model alloy systems. The role of ternary additions in affecting growth is emphasized. Defect density, solute segregation, ledge growth, and precipitate morphology and spacing are analyzed to reveal effects of systematic changes in ternary alloying additions and aging treatments. In-situ high resolution electron microscopy is employed to show atomic growth mechanisms based on dislocation ledges and to quantify interphase boundary motion.