U.S.-Egypt Cooperative Research: Metallic Iron Whiskers Growth During the Reduction of Iron Oxide

美埃合作研究：氧化铁还原过程中金属铁晶须的生长

• 批准号: 0512520
• 负责人: H. Y. Sohn
• 金额: $ 2.85万
• 依托单位: University of Utah
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2005
• 资助国家: 美国
• 起止时间: 2005-09-01 至 2008-08-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0512520&HistoricalAwards=false
• 关键词: U.S.; Egypt; Cooperative; Research; Metallic

0512520SohnDescription: This project supports a collaborative research between Dr. H.Y. Sohn, Department of Metallurgical Engineering, University of Utah (UT), Salt Lake City, Utah and Dr. Mohamed Nasr, Central Metallurgical Research and Development Institute (CMRDI), Helwan, Egypt. They plan to conduct studies on the growth of metallic iron whiskers during the reduction of iron oxide. Intellectual Merits: Previous work indicates that swelling of iron ore pellets mainly takes place during metallization in the wustite-iron reduction stage. Also, most of the relevant literature points out to the iron filaments (whiskers) growth on the w stite phase during metallization as the main reason for that abnormal swelling. Therefore, the objective of this project is to clarify the whisker formation mechanism. This will be done by studying all the parameters that control the whisker growth and also the parameters that affect the reduction behavior.Broad Impacts: In ironmaking processes, the iron ore mainly in pelletized shape is charged to the production furnaces. Swelling in these pellets takes place during reduction and leads to the disintegration of iron ore pellets which causes irregularities in blast furnace operations. Iron is the most important metal and its use is increasing rapidly. Thus, the improvement of ironmaking processes has a very broad impact in iron and steel industry and by extension in many associated societal areas. The project will involve supporting two graduate students at the University of Utah for work with the two PIs. This project is being supported under the US-Egypt Joint Fund Program, which provides grants to scientists and engineers in both countries to carry out these cooperative activities.

项目描述：本项目支持犹他州盐湖城犹他大学冶金工程系H.Y. Sohn博士和埃及赫尔万中央冶金研究与发展研究所（CMRDI） Mohamed Nasr博士的合作研究。他们计划对氧化铁还原过程中金属铁晶须的生长进行研究。知识优势：前人研究表明，铁矿球团膨胀主要发生在乌氏体-铁还原阶段的金属化过程中。此外，大多数相关文献指出，金属化过程中钨相上的铁丝（晶须）生长是造成异常膨胀的主要原因。因此，本项目的目的是阐明晶须的形成机制。这将通过研究控制晶须生长的所有参数以及影响还原行为的参数来完成。广泛影响：在炼铁过程中，主要以球团状的铁矿石被装入生产炉。这些球团在还原过程中发生膨胀，导致铁矿石球团的解体，导致高炉操作不规范。铁是最重要的金属，它的使用量正在迅速增加。因此，炼铁工艺的改进对钢铁工业产生了非常广泛的影响，并延伸到许多相关的社会领域。该项目将支持犹他大学的两名研究生与这两名pi一起工作。该项目得到了美国-埃及联合基金项目的支持，该项目向两国的科学家和工程师提供赠款，以开展这些合作活动。