U.S.-Argentina Cooperative Research: Simulation of Defects in Castings

9802518 Poirier这个美洲项目奖将资助博士之间的合作研究项目。亚利桑那大学的David R. Poirier和Juan C. Heinrich博士。S. Felicelli和E. Basombrio，阿根廷巴里洛切原子中心，合金铸件凝固的建模和模拟。研究的主要目的是生产无气孔的结构铸件，以避免通常导致定向凝固过程的缺陷的形成。研究人员的目标是开发适用于研究铸造缺陷形成的复杂三维形状的模拟器。这项合作将补充亚利桑那大学的两个项目，这两个项目模拟了孔隙度的形成。巴里洛切原子中心的研究人员，凭借他们在移动界面数值模拟方面的经验，将为这些项目增加一个重要的组成部分。这两个小组还将一起继续完善孔隙成核的初步模型。来自亚利桑那大学和巴里洛切原子中心的几名研究生将参与这项研究，要么开发新模型和他们的计算机程序，要么在实验工作中使用模拟器。* * *

9802518 Poirier This Americas Program award will fund a cooperative research project between Drs. David R. Poirier and Juan C. Heinrich, of the University of Arizona, and Drs. S. Felicelli and E. Basombrio, Centro Atomico Bariloche, Argentina, on the modeling and simulation of solidification in alloy castings. The major objective in the research is to produce porosity- free structural castings in order to avoid the formation of defects which usually result in directional solidification processes. The researchers aim to develop simulators for complex three-dimensional shapes suitable for studying the formation of casting defects . This collaboration will complement two programs of the University of Arizona, which model the formation of porosity. The investigators at Centro Atomico Bariloche, with their experience in numerical modeling of the moving interfaces, will add an important component to these programs. Together, both groups will also continue to refine a preliminary model on pore nucleation. Several graduate students from both the University of Arizona and Centro Atomico Bariloche will be involved in the research, either in the development of new models and their computer programs, or in the use of the simulators in conjunction with experimental work. ***