Microstructural Scales of Superplastic Flow: Experimental Study and Constitutive Modeling

超塑性流动的微观结构尺度：实验研究和本构模型

• 批准号: 9634179
• 负责人: Amiya Mukherjee
• 金额: $ 30万
• 依托单位: University of California-Davis
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 1996
• 资助国家: 美国
• 起止时间: 1996-10-01 至 2000-09-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9634179&HistoricalAwards=false
• 关键词: Microstructural; Scales; Superplastic; Flow; Experimental

9634179 Mukherjee, A. The proposed research will study superplastic flow on different microstructural scales: macro (entire deformed volume), meso (grain groups) and micro (crystalline defects). The scientific goal is to develop a multi-axial constitutive law which reflects the occurrence of superplastic deformation on different microstructural scales. Fundamental understanding of superplastic behavior at these different microstructural scales will enable development of quantitative models for superplastic flow. The balance of experimental work with analytical modeling and the relevance to applied problems is excellent. The successful performance of this research will have significant engineering impact on the control of industrial forming parameters, reduction in forming temperature and the development of new industrial forming processes. ***

9634179 Mukherjee，A. 拟议的研究将研究不同微观结构尺度上的超塑性流动：宏观（整个变形体积），中（晶粒组）和微观（晶体缺陷）。 科学的目标是发展一个多轴本构关系，反映超塑性变形的发生在不同的微观结构尺度。 在这些不同的微观结构尺度上的超塑性行为的基本理解将使超塑性流动的定量模型的发展。 实验工作与分析建模的平衡以及与应用问题的相关性非常好。 该研究的成功实施将对工业成形参数的控制、成形温度的降低和新的工业成形工艺的开发产生重大的工程影响。 ***