Ductility Enhancement Processes in Dislocation-Mobility Limited Materials

位错迁移率受限材料的延展性增强工艺

• 批准号: 8810058
• 负责人: Ronald Gibala
• 金额: $ 38.03万
• 依托单位: Regents of the University of Michigan - Ann Arbor
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 1988
• 资助国家: 美国
• 起止时间: 1988-08-01 至 1992-01-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=8810058&HistoricalAwards=false
• 关键词: Ductility; Enhancement; Processes; Dislocation; Mobility

The proposed research consists of an experimental and theoretical study of the basic factors that lead to enhanced ductility in materials with limited dislocation mobility. This is an important problem because many strong structural materials have low ductilities. The research will deal primarily with the ordered intermetallic alloys of nickel aluminide and iron aluminide. Specific points to be investigated are (a) the general aspects of the phenomena, (b) the fundamental factors controlling the ductility, and (c) the relationship of cyclic to monotonic deformation. The application of these results to interfaces in composite materials will also be examined.

拟议的研究包括一个实验和 理论研究的基本因素，导致增强 位错移动性有限的材料的延展性。 这 是一个重要的问题，因为许多坚固的结构材料 延展性低。 研究将主要涉及 镍铝化物和铁的有序金属间合金 铝化物需要研究的具体问题有：（a）一般性问题 现象的各个方面，（B）控制的基本因素 延性，以及（c）循环与单调的关系 变形 将这些结果应用于 复合材料也将被研究。