Evolution of Polycrystalline Microstructure with Deformation

多晶微观结构随变形的演变

• 批准号: 8921304
• 负责人: Brent Adams
• 金额: $ 9.32万
• 依托单位: Yale University
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 1990
• 资助国家: 美国
• 起止时间: 1990-07-01 至 1991-12-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=8921304&HistoricalAwards=false
• 关键词: Evolution; Polycrystalline; Microstructure; Deformation

Statistical measures defining microstructures in deforming polycrystalline materials will be studied. Many properties of polycrystals are linked to stochastic features of microstructure such as lattice preferred orientation (LPO) and the morphology and arrangement of grains. An automated analysis of two and three-point statistical measures of LPO will provide input into rigorous statistical theories of deformation in polycrystals. A phenomenological study of strain evolution of two and three-point measures in some single and two-phase polycrystals will be done. The development of new crystal-plastic theories, introduced by the author, will be completed.

定义变形中微观结构的统计测量 将研究多晶材料。 的许多性质 多晶体与微观结构的随机特征有关 如晶格择优取向（LPO）和形貌 和谷物的排列。 自动分析两个和 LPO的三点统计措施将为 多晶体形变的严格统计理论。 一 两点和三点应变演化的唯象研究 将在一些单相和两相多晶体中进行测量。 介绍了新的晶体塑性理论的发展， 作者将完成。