New approaches to the assessment and control of microstructure and stress in advanced protective coatings

评估和控制先进防护涂层微观结构和应力的新方法

• 批准号: 520968-2017
• 负责人: Martinu, Ludvik
• 金额: $ 9.62万
• 依托单位: École Polytechnique de Montréal
• 依托单位国家: 加拿大
• 项目类别: Collaborative Research and Development Grants
• 财政年份: 2020
• 资助国家: 加拿大
• 起止时间: 2020-01-01 至 2021-12-31
• 项目状态: 已结题
• 来源: https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=697396
• 关键词: New; approaches; assessment; control; microstructure

The development of protective coatings (PC) presents very important challenges and opportunities with a strong impact on sustainable development as well as significant economic and environmental benefits in many industrial sectors including aerospace, automotive, manufacturing, biomedical, mining, energy and others. Despite the progress in PC fabrication processes and coating architectures, the acceptance and further advances in this area are frequently limited by high residual stress in the coating systems, primarily related to the lack of fundamental and comprehensive knowledge of the stress generating mechanisms, their complex relation to the microstructure, and the availability of pathways to compensate for it, and even how to include it in the coating system design. In response to these technological challenges and goals, the FCSEL team at Polytechnique Montreal (PM), in collaboration with MDS Coating Technologies (MCT) and IHI Hauzer Techno Coating BV (Hauzer), proposes to investigate new approaches for the assessment and control of microstructure and stress in advanced protective coatings. Specifically, within the proposed project, we will study the origins and management strategies of residual stresses present in hard PC systems using highly complementary deposition techniques, determine their impact on in operando coated component performance, and develop laboratory-based methodologies to measure residual stress distribution in coated parts. Through our collaboration with our industrial partners, the goal is to accelerate implementation of new PC deposition technologies in areas of primary importance for Canada, especially in aerospace and manufacturing.

防护涂料（PC）的发展带来了非常重要的挑战和机遇，对航空航天、汽车、制造、生物医学、采矿、能源等许多工业领域的可持续发展以及显着的经济和环境效益产生了重大影响。尽管PC制造工艺和涂层结构取得了进步，但该领域的接受度和进一步进步常常受到涂层系统中高残余应力的限制，这主要与缺乏对应力产生机制及其复杂关系的基本和全面的了解有关微观结构、补偿途径的可用性，甚至如何将其纳入涂层系统设计。 为了应对这些技术挑战和目标，蒙特利尔理工学院 (PM) 的 FCSEL 团队与 MDS Coating Technologies (MCT) 和 IHI Hauzer Techno Coating BV (Hauzer) 合作，提议研究评估和控制微观结构的新方法和先进保护涂层的应力。具体来说，在拟议的项目中，我们将使用高度互补的沉积技术研究硬 PC 系统中存在的残余应力的起源和管理策略，确定它们对操作涂层部件性能的影响，并开发基于实验室的方法来测量残余应力分布在涂层零件中。通过与工业合作伙伴的合作，我们的目标是在加拿大最重要的领域，特别是航空航天和制造业，加速实施新的 PC 沉积技术。