Thermoelastic Effects in the Solidification of Castings

铸件凝固中的热弹性效应

• 批准号: 8719073
• 负责人: James Barber
• 金额: $ 14.41万
• 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: 1988-03-01 至 1990-08-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=8719073&HistoricalAwards=false
• 关键词: Thermoelastic; Effects; Solidification; Castings

A nonuniform contact pressure between the casting and the mold during the solidification process can result in a casting surface with wavy defects as well as undesirable residual stresses. The latter could cause spontaneous failure of the casting at a later date. Dr. J. R. Barber will use measured contact resistance and contact pressure between the casting and mold to study the solidification process. The related experiments will be conducted at ALCOA Research Laboratory at no cost to this award thus demonstrating its industrial significance. This study should lead to optimum material properties and mold cooling strategies for a better surface finish and minimum residual stresses in a casting. Dr. Barber is most qualified to undertake this interdisciplinary research involving solid mechanics and heat transfer. Dr. O. Richmond, ALCOA, will conduct the experimental studies and participate in the theoretical studies. Also Dr. A. Azarkhin, ALCOA, wail be an advisor and an active participant in the theoretical studies.

铸件与铸型之间的接触压力不均匀 在凝固过程中会导致铸造表面 具有波状缺陷以及不希望的残余应力。 的 后者可能会导致铸造的自发失败， 约会 J. R. Barber将使用测量的接触电阻， 铸件与结晶器之间的接触压力，以研究 固化过程 相关实验将在 ALCOA研究实验室在没有成本，以这个奖项，从而证明 其工业意义。 这项研究将导致最佳 材料特性和模具冷却策略，以获得更好的表面 铸件的光洁度和最小残余应力。 巴伯医生是 最有资格进行这项跨学科的研究， 固体力学和传热学。 欧博士里士满，阿尔科，将 进行实验研究并参与理论研究， 问题研究 A博士阿扎尔欣，ALCOA，哭是一个顾问和一个 积极参与理论研究。