Inter-American Materials Collaboration: Modeling and Testing the Effects of Texture and Plastic Deformation on the Magnetic Properties of Polycrystalline Ferromagnetic Materials

美洲材料合作：模拟和测试织构和塑性变形对多晶铁磁材料磁性的影响

• 批准号: 0306108
• 负责人: M. Sablik
• 金额: --
• 依托单位: Southwest Research Institute
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 2003
• 资助国家: 美国
• 起止时间: 2003-07-15 至 2008-12-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0306108&HistoricalAwards=false
• 关键词: Inter; American; Materials; Collaboration; Modeling

This Inter-American Materials Collaboration project develops and tests magnetic hysteresis models that describe the effect of texture and plastic deformation on magnetic properties of polycrystalline ferromagnetic materials. The project brings together groups led by Martin Sablik, Southwest Research Institute, and Carlos Gutierrez, Southwest Texas State University, in the US and Fernando Landgraf, Institute for Technological Research (IPT), and Ivan Falleiros, University of Sao Paulo, in Sao Paulo, Brazil. A related effort on the evolution of texture during plastic deformation of electrical steels is carried out by R. Doherty and colleagues, Drexel University, in collaboration with the Brazilian group. Topics addressed in this project include changes occurring in coercivity, remanence, hysteresis loss, and maximum permeability when the material is taken point by point from elastic deformation, then plastic deformation, and then back to a new elastic state that is now deformed from the original state. The collaboration includes exchanges of senior researchers and students between the participating institutions in the US and Brazil. Students will particularly benefit from the interactions among various laboratories. The US researchers will benefit from the experimental expertise on the effect of microstructure on magnetic properties of steels of the Brazilian counterpart. This award is supported by the Division of Materials Research, the Office of International Science and Engineering, and the Office of Multidisciplinary Activities in the Directorate for Mathematical and Physical Sciences.

这一美洲材料合作项目开发并测试了磁滞模型，该模型描述了织构和塑性变形对多晶铁磁性材料磁性的影响。该项目由美国西南得克萨斯州立大学的马丁·萨布里克和卡洛斯·古铁雷斯、巴西圣保罗的圣保罗大学技术研究所(IPT)的费尔南多·兰德格拉夫和圣保罗大学的伊万·法列罗斯领导的团队共同完成。德雷克塞尔大学的R.Doherty及其同事与巴西研究小组合作，开展了一项关于电工钢塑性变形过程中织构演变的相关研究。这个项目涉及的主题包括当材料从弹性变形到塑性变形，然后再回到现在从原始状态变形的新的弹性状态时，在矫直力、剩磁、磁滞损耗和最大磁导率方面发生的变化。这项合作包括在美国和巴西的参与机构之间交换高级研究人员和学生。学生将特别受益于不同实验室之间的互动。美国研究人员将受益于巴西同行在微观结构对钢的磁性影响方面的实验专业知识。该奖项由材料研究部、国际科学和工程办公室以及数学和物理科学局的多学科活动办公室提供支持。