New Directions in Molecular Tribology

分子摩擦学的新方向

• 批准号: 9523276
• 负责人: Steve Granick
• 金额: $ 26.79万
• 依托单位: University of Illinois at Urbana-Champaign
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 1995
• 资助国家: 美国
• 起止时间: 1995-09-15 至 1998-08-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9523276&HistoricalAwards=false
• 关键词: New; Directions; Molecular; Tribology

9526411 Brown Recent studies have shown that zirconium nitride can protect stainless steel against seawater corrosion. It appears that the effcct is due to natural conversion of a thin layer of the nitride to hydrated zirconium oxide. Under an SGER award a study will be made of various other refractory nitrides for their potential use as corrosion protection coatings. Pourbaix diagrams will be constructed and candidate materials for testing will be chosen from those that have stable oxides or hydrated oxides at the pH and open potential levels of seawater. The selected nitride coatings will be deposited by plasma arc methods and tested for corrosion resistance by electrochemical techniques. The results may make it possible to replace chromate conversion coatings with the environmentally more benign nitride coatings. ***

最近的研究表明氮化锆可以保护不锈钢免受海水腐蚀。这种效果似乎是由于一层薄薄的氮化物自然转化为水合氧化锆。在SGER的资助下，将对其他各种耐火氮化物作为防腐涂层的潜在用途进行研究。将构建Pourbaix图，并从具有稳定氧化物或在海水pH值和开放电位水平下的水合氧化物的材料中选择用于测试的候选材料。选定的氮化涂层将通过等离子弧方法沉积，并通过电化学技术测试其耐腐蚀性。这一结果为用更环保的氮化物涂层代替铬酸盐转化涂层提供了可能。＊＊＊