SBIR PHASE II: Nanostructured WC/Co Coatings for Enhanced Wear Resistance Applications

SBIR PHASE II：用于增强耐磨应用的纳米结构 WC/Co 涂层

• 批准号: 0646485
• 负责人: Ralph Tapphorn
• 金额: $ 49.68万
• 依托单位: INNOVATIVE TECHNOLOGY, INC.
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2007
• 资助国家: 美国
• 起止时间: 2007-04-01 至 2009-03-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0646485&HistoricalAwards=false
• 关键词: SBIR; PHASE; II; Nanostructured; WC

This Small Business Innovation Research (SBIR) Phase II project continued development of nano-crystalline tungsten carbide-cobalt coatings by integrating two novel processes: i) a low temperature spray deposition process (kinetic metallization), and ii) a nano-crystalline powder deposition process. The results of Phase I research demonstrated that the two proposed methods can be synergistically combined to synthesize unique new compositions of powders for thermal spray coating process. The Phase II work is focused on the scaling and optimization of the powder manufacture and deposition techniques. If successful, the process and material system can provide an environmentally acceptable replacement for chromium-based coatings. A nc-WC-Co coating system with good fatigue properties will certainly provide an alternative to hard Chrome coatings, if it can be fabricated cost effectively. The environmental benefit resulting from this will be significant. The proposed technique is also claimed to result in a deposition equipment at a lower cost of ownership as compared to curently available equipment. The technique has significant broad applications in a number of key industries, including aerospace, power generation, oil and gas drilling, defense and medical industries.

这个小型企业创新研究（SBIR）二期项目通过整合两种新工艺继续开发纳米晶碳化钨-钴涂层：1)低温喷涂沉积工艺（动态金属化）和2)纳米晶粉末沉积工艺。第一阶段的研究结果表明，这两种方法可以协同结合，合成独特的新型热喷涂粉末。第二阶段的工作重点是粉末制造和沉积技术的缩放和优化。如果成功，该工艺和材料系统可以为铬基涂层提供环境可接受的替代品。具有良好疲劳性能的nc-WC-Co涂层体系，如果能够经济有效地制造，必将成为硬铬涂层的替代品。由此产生的环境效益将是显著的。与目前可用的设备相比，所提出的技术还声称以更低的拥有成本生产沉积设备。该技术在许多关键行业有重要的广泛应用，包括航空航天、发电、石油和天然气钻探、国防和医疗行业。