A new generation of wear-resistant coatings consisting of high-entropy alloy matrix and complex carbides for the energy industry

用于能源行业的新一代高熵合金基体和复合碳化物组成的耐磨涂层

• 批准号: 567506-2021
• 负责人: Li, DongyangD
• 金额: $ 3.28万
• 依托单位: University of Alberta
• 依托单位国家: 加拿大
• 项目类别: Alliance Grants
• 财政年份: 2022
• 资助国家: 加拿大
• 起止时间: 2022-01-01 至 2023-12-31
• 项目状态: 已结题
• 来源: https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=746830
• 关键词: new; generation; wear; resistant; coatings

This project is proposed to the NSERC - Mitacs Accelerate program for developing a new class of superior wear-resistant materials for protective surface layers, e.g., hardfacing overlays and coatings, in the form of composite which consists of a high-entropy alloy (HEA) matrix and complex carbides. The new overlays and coatings will be used to resist severe wear encountered in different sectors of Canada's energy industry, including oil sands, hydrogen fuel, hydroelectricity, wind energy, and coal mining. Wear can cause malfunction or failure of operation facilities, leading to high operation costs, short service life of facilities, and safety issues. The currently used overlays and coatings, e.g., WC/Ni alloy and WC/Co, have played an important role in protecting industrial facilities from wear attacks. However, these overlays and coatings have shortcomings, e.g., low wear resistance of the matrix materials, which are also prone to corrosion and thus less durable against wear in corrosive environments. This project is oriented to the development of a new generation of protective overlays/coatings, which consist of a high-entropy alloy (HEA) - matrix and complex carbides to resist severe wear in harsh operation conditions and aggressive environments, encountered in various sectors of energy production. The main outcomes will include prototype materials for commercial applications, guidelines for overlay/coating design, databases and standard for applications and further development. Minimizing wear of operation facilities, e.g., oil sands mining, will not only increase the competitiveness of Canadian oil industry in the global fuel market, but also promote clean energy production such as increased hydrogen production with lowered cost [extract hydrogen from oil sands (bitumen)], increased electricity production through the combustion of cheaper fossil fuels to power steam turbines, and improved efficiency of wind power production as well. This helps increase the clean energy utilization with reduced direct use of fossil fuels, helping minimize greenhouse gas emissions. The success of this project would have impact on the Canada energy industry and bring in significant benefits to Canadians in various aspects.

该项目被提交给NSERC - Mitacs加速计划，用于开发用于保护表面层的新型上级耐磨材料，例如，高熵合金（HEA）基体和复合碳化物组成的复合材料形式的耐磨堆焊层和涂层。新的覆盖层和涂层将用于抵抗加拿大能源行业不同部门遇到的严重磨损，包括油砂，氢燃料，水电，风能和煤炭开采。磨损会导致运行设施的故障或失效，导致运行成本高、设施使用寿命短以及安全问题。目前使用的覆盖层和涂层，例如，WC/Ni合金和WC/Co合金在保护工业设备免受磨损方面发挥了重要作用。然而，这些覆盖层和涂层具有缺点，例如，基体材料的耐磨性低，其也易于腐蚀，因此在腐蚀环境中的耐磨性较差。该项目旨在开发新一代保护性覆层/涂层，其由高熵合金（HEA）基体和复合碳化物组成，可在能源生产的各个部门遇到的恶劣操作条件和侵蚀性环境中抵抗严重磨损。主要成果将包括用于商业应用的原型材料、覆盖/涂层设计指南、应用和进一步开发的数据库和标准。最大限度地减少操作设施的磨损，例如，油砂开采，不仅将提高加拿大石油工业在全球燃料市场的竞争力，而且还将促进清洁能源生产，如以更低的成本增加氢气生产[从油砂（沥青）中提取氢气]，通过燃烧更便宜的化石燃料为蒸汽涡轮机提供动力来增加发电量，以及提高风力发电的效率。这有助于增加清洁能源的利用，减少化石燃料的直接使用，有助于最大限度地减少温室气体排放。该项目的成功将对加拿大能源行业产生影响，并在各方面为加拿大人带来重大利益。