GOALI: Modeling Solute Effects in Magnesium Alloys: First-principles to Predictive Finite-Element

目标：模拟镁合金中的溶质效应：预测有限元的第一原理

• 批准号: 0825961
• 负责人: Dallas Trinkle
• 金额: $ 28.13万
• 依托单位: University of Illinois at Urbana-Champaign
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2008
• 资助国家: 美国
• 起止时间: 2008-08-01 至 2012-07-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0825961&HistoricalAwards=false
• 关键词: GOALI; Modeling; Solute; Effects; Magnesium

GOALI: Modeling Solute Effects in Magnesium Alloys: First-principles to Predictive Finite-ElementDallas R. Trinkle; Materials Science and Engineering; University of Illinois, Urbana-Champaign Louis G. Hector, Jr.; General Motors Technical Center; Warren, Michigan The University of Illinois and General Motors will collaborate on a computer modeling study of how different chemical additions?like aluminum and zinc as well as more exotic elements?change the strength of the metal magnesium to design new magnesium alloys for widespread use. The computer model starts with an understanding of how atoms bind to each other to model changes in chemical bonds as the metal is bent and shaped. Different chemical additions further change the bonding, which makes the alloy stronger/weaker, or ductile/brittle. Modeling changes in strength and ductility allows researchers to design and optimize new magnesium alloys in a computer, rather than through expensive trial-and-error approaches. In addition, the quantitative understanding of chemical bonding from atoms is built into computer models for the shaping and behavior of real automobile parts.Magnesium alloys have two-thirds the density of aluminum; replacing many of the steel and aluminum body pieces in an automobile with magnesium can significantly reduce the weight of a vehicle, which reduces fuel consumption by nearly 30% and a substantial reduction in emissions of greenhouse gases. The computer modeling will allow the design of new alloys much more rapidly, and allow magnesium alloys to enter widespread use for transportation. Students at Illinois will learn first-hand the connection of academic research to industrial development, and materials science that benefits society. Moreover, Prof. Trinkle and Dr. Hector will work with high school science teachers in Illinois and Detroit doing in-class presentations and demonstrations about the use of materials science to combat global warming.

模拟镁合金中的溶质效应：预测镁合金元素的第一原理。伊利诺伊大学厄巴纳-香槟分校材料科学与工程系;小赫克托;通用汽车公司技术中心沃伦，密歇根州伊利诺斯大学和通用汽车公司将合作进行一项计算机建模研究，研究不同的化学添加剂如何？比如铝和锌以及其他奇异元素改变金属镁的强度，设计新的镁合金以广泛使用。 计算机模型从理解原子如何相互结合开始，以模拟金属弯曲和成形时化学键的变化。 不同的化学添加剂进一步改变了结合，这使得合金更强/更弱，或韧性/脆性。 模拟强度和延展性的变化使研究人员能够在计算机中设计和优化新的镁合金，而不是通过昂贵的试错方法。 此外，对来自原子的化学键合的定量理解被内置到计算机模型中，用于真实的汽车零部件的成型和行为。镁合金的密度是铝的三分之二;用镁代替汽车中的许多钢和铝车身部件可以显著地减轻车辆的重量，减少了近30%的燃料消耗，并大大减少了温室气体的排放。 计算机建模将使新合金的设计更加迅速，并使镁合金广泛用于交通运输。 伊利诺伊州的学生将直接了解学术研究与工业发展的联系，以及有益于社会的材料科学。 此外，Trinkle教授和Hector博士将与伊利诺伊州和底特律的高中科学教师合作，在课堂上进行有关使用材料科学来应对全球变暖的演示和演示。