The Stability of Amorphous Metals in Corrosive Environments

非晶金属在腐蚀环境中的稳定性

• 批准号: 9108265
• 负责人: Ronald Latanision
• 金额: --
• 依托单位: Massachusetts Institute of Technology
• 依托单位国家: 美国
• 项目类别: Continuing grant
• 财政年份: 1991
• 资助国家: 美国
• 起止时间: 1991-08-01 至 1995-01-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9108265&HistoricalAwards=false
• 关键词: Stability; Amorphous; Metals; Corrosive; Environments

This research examines the corrosion behavior of amorphous metals. The focus is on transition metal/metalloid alloys and the mechanisms of formation of stable, protective, passive oxide films on the surface of the alloys. Several experimental techniques are used to characterize the films and study their stability in various environments. The application of photoelectron spectroscopy in conjunction with photoelectrochemical and standard electrochemical techniques aids in clarifying the role of alloying elements in the formation of the passive films. A fundamental understanding of passive film breakdown should result from the research. %%% This research should lead to the development of new experimental techniques, improvement in the understanding of passive films on metal alloys, and improved chemistry to enhance the corrosion resistance of transition metal/metalloid magnetic materials.

这项研究考察了非晶态金属的腐蚀行为。重点是过渡金属/类金属合金以及在合金表面形成稳定的、保护的、被动的氧化膜的机理。采用多种实验技术对薄膜进行表征，并研究其在不同环境中的稳定性。光电子能谱与光电化学和标准电化学技术相结合的应用有助于阐明合金元素在钝化膜形成中的作用。这项研究应该对被动膜的击穿有一个基本的理解。这项研究将导致新的实验技术的发展，提高对金属合金钝化膜的理解，并改进化学以提高过渡金属/类金属磁性材料的耐腐蚀性。