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

0512520SohnDescription：该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开发研究所Mohamed Nasr博士之间的合作研究。他们计划对氧化铁还原过程中金属铁须的生长进行研究。智力优势：以往的工作表明，铁矿石球团的膨胀主要发生在维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，铁丝(晶须)在金属化过程中在W相上生长是导致异常肿胀的主要原因。因此，本项目的目标是阐明晶须的形成机理。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。广泛的影响：在炼铁过程中，主要以球团形式存在的铁矿石被装入生产炉中。这些球团在还原过程中发生膨胀，导致铁矿石球团崩解，从而导致高炉操作不规范。铁是最重要的金属，其用途正在迅速增加。因此，炼铁工艺的改进在钢铁工业中产生了非常广泛的影响，进而对许多相关的社会领域产生了影响。该项目将支持犹他大学的两名研究生与两名私人投资机构合作。该项目得到了美国-埃及联合基金计划的支持，该计划为两国的科学家和工程师提供资助，以开展这些合作活动。

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.