Surface engineering of advanced composite coatings for significant enhancement to the life cycle of HydroPower infrastructure

先进复合涂层的表面工程可显着提高水电基础设施的生命周期

• 批准号: 478885-2015
• 负责人: Mauzeroll, Janine
• 金额: $ 10.45万
• 依托单位: McGill University
• 依托单位国家: 加拿大
• 项目类别: Strategic Projects - Group
• 财政年份: 2017
• 资助国家: 加拿大
• 起止时间: 2017-01-01 至 2018-12-31
• 项目状态: 已结题
• 来源: https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=641888
• 关键词: Surface; engineering; advanced; composite; coatings

In hydropower plants like any other plants, part failures normally contribute to high maintenance and repair costs; revenue lost due to downtime and cost of replacement power; decreased operating efficiencies; and reduction of equipment service life. There are several avenues to minimize the effect of abrasive flows in hydraulic systems, namely i. improved flow profile design, ii. surface treatment of exposed materials to increase erosion resistance, and iii. application of erosion-resistant coatings. In this NSERC-Strategic project we propose to i) manufacture two generations of self-lubricating composite coatings on SS444/SS309 substrate, ii) quantify their corrosion properties, iii) study their tribology properties, and iv) develop predictive corrosion models that will aid Hydro Quebec (HQ) in their technology development.Our material development will focus on the use of thermal spray, which is one of the most used coating technologies with applications in different industrial sectors such as aerospace, automotive, biomedical, energy and environment. The technology is versatile as metals, ceramics, polymers and their composites can be sprayed to produce high-performance coatings/films. Thermal spray coatings are presently widely used to either improve service life of industrial parts or repair the failed parts of complex and expensive systems, which are directly targeted by our industrial partner. A spectrum of engineered coatings will be developed to address severe service conditions with multiple degradation mechanisms such as combined erosion/corrosion as faced in hydro turbine engines. A key strength of our concerted effort is the systematic characterization of the materials through electrochemical and tribology testing and subsequent numerical modeling that can define predictive metrics for the subsequent design of later materials generations.

与其他电厂一样，水电站的部件故障通常会导致高昂的维护和维修成本；停机时间造成的收入损失和更换电源的成本；运营效率降低；并降低设备使用寿命。有几种途径可以最大限度地减少液压系统中磨料流的影响，即：1 .改进流型设计；对暴露在外的材料进行表面处理，增加抗侵蚀能力；耐腐蚀涂料的应用。在这个nserc战略项目中，我们建议i)在SS444/SS309基板上制造两代自润滑复合涂层，ii)量化其腐蚀性能，iii)研究其摩擦学性能，以及iv)开发预测腐蚀模型，这将有助于Hydro Quebec （HQ）的技术开发。我们的材料开发将重点关注热喷涂技术的使用，热喷涂技术是应用最广泛的涂层技术之一，应用于航空航天、汽车、生物医学、能源和环境等不同的工业领域。该技术用途广泛，可以喷涂金属、陶瓷、聚合物及其复合材料，以生产高性能涂层/薄膜。热喷涂涂料目前广泛用于提高工业部件的使用寿命或修复复杂和昂贵系统的失效部件，这是我们的工业合作伙伴的直接目标。一系列工程涂料将被开发出来，以解决具有多种降解机制的恶劣使用条件，例如水轮机发动机所面临的综合侵蚀/腐蚀。我们共同努力的一个关键优势是通过电化学和摩擦学测试以及随后的数值建模对材料进行系统表征，可以为后续材料的后续设计定义预测指标。