Developing high-entropy alloy coatings on different engineering alloys with electro-spark deposition

利用电火花沉积在不同的工程合金上开发高熵合金涂层

• 批准号: 568598-2021
• 负责人: Peng, PengP
• 金额: $ 3.37万
• 依托单位: University of Waterloo
• 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=760378
• 关键词: Developing; entropy; alloy; coatings; different

High-entropy alloys (HEAs) are becoming a new class of advanced engineering materials and are gaining significant attention both in academia and industry due to their promising good mechanical strength at high temperature and cryogenic state, good ductility, and corrosion or wear resistance, etc. They are considered as good structural materials or as promising candidate for the application of surface modification of alloys where low corrosion and wear resistance are needed.The proposed research and development project between the University of Waterloo and Huys Industries aims at exploring the use of Electro-Spark Deposition (ESD) for developing HEA coatings on typical engineering alloys, including Al alloys, steel, and superalloys. The use of ESD is expected to lead to a smaller heat affected zone than that of laser cladding processes and thus should be less detrimental to the microstructure of substrate and deposited HEA materials. This project builds upon Huys Industries' patented ESD technology and aims to broaden the applicability of their technology to pioneer the developing of new materials for the industrial sector. Specifically, this project will investigate the weldability of HEA with similar and dissimilar materials and their metallurgical phenomena, such as welding defects, phase separation, chemical segregation, diffusion, nanopreciptiations, and aims to use that knowledge to control the microstructure of HEA upon melting and resolidfication for practical applications. The implementation of this collaborative project will accelerate the application of HEAs moving from the laboratory to industrial adoption in Canada, which will place Canadian businesses and Canada's workforce at the forefront of technology development in the manufacturing, automotive and aerospace industries.

高熵合金（HEAs）正成为一类新型先进工程材料，由于其在高温和低温状态下具有良好的机械强度、良好的延展性、耐腐蚀耐磨等优点，受到学术界和工业界的广泛关注。它们被认为是良好的结构材料，或者是需要低腐蚀和耐磨性的合金表面改性应用的有前途的候选材料。滑铁卢大学和休斯工业公司之间拟议的研究和开发项目旨在探索电的使用。 -火花沉积(ESD)，用于在典型的工程合金（包括铝合金、钢和高温合金）上开发 HEA 涂层。预计使用 ESD 会产生比激光熔覆工艺更小的热影响区，因此对基底和沉积 HEA 材料的微观结构的损害较小。该项目以 Huys Industries 的 ESD 专利技术为基础，旨在扩大其技术的适用性，以开拓工业领域新材料的开发。具体来说，该项目将研究 HEA 与相似和不同材料的可焊性及其冶金现象，例如焊接缺陷、相分离、化学偏析、扩散、纳米沉淀，并旨在利用这些知识来控制 HEA 在熔化和熔化时的微观结构。重新固化以适应实际应用。该合作项目的实施将加速 HEA 在加拿大的应用从实验室转向工业采用，这将使加拿大企业和加拿大劳动力处于制造、汽车和航空航天行业技术开发的最前沿。