Nickel Superalloy Design for Corrosion Resistance

耐腐蚀镍高温合金设计

• 批准号: EP/S013881/1
• 负责人: Stella Pedrazzini
• 金额: $ 94.51万
• 依托单位: Imperial College London
• 依托单位国家: 英国
• 项目类别: Fellowship
• 财政年份: 2019
• 资助国家: 英国
• 起止时间: 2019 至 无数据
• 项目状态: 未结题
• 来源: https://gtr.ukri.org/projects?ref=EP%2FS013881%2F1
• 关键词: Nickel; Superalloy; Design; Corrosion; Resistance

My fellowship will lead a research programme employing state of the art experimental and computational techniques to provide new, fundamental insight into the environmental degradation of nickel superalloys and steels that occur as a result of interactions with the corrosive gaseous species they encounter in-service. I have published some preliminary work from my corrosion and oxidation research program, though the full potential benefits for the development of corrosion resistant high temperature materials, have barely been explored. I plan to address these questions through advanced characterisation of samples exposed to corrosive environments in laboratory furnaces, during high temperature mechanical tests and a study of ex-service components provided by my industrial collaborators. The results will then be used to design a new generation of alloys, whose corrosion resistance will be tailored to their specific applications. To maximise the impact of my research, I will work closely with my industrial collaborators such as Rolls-Royce plc, as well as my academic collaborators, including Prof Michael Moody (Atom probe Tomography Group, University of Oxford), to characterise the samples, inform alloy design and produce new superalloys with improved corrosion resistance. Corrosion research is extremely timely and globally important with potential for substantial future savings and component lifetime extension.

我的奖学金将领导一项研究计划，采用最先进的实验和计算技术，为镍超合金和钢的环境退化提供新的基本见解，这些环境退化是由于与它们在服务中遇到的腐蚀性气体物种相互作用而发生的。我已经发表了我的腐蚀和氧化研究计划的一些初步工作，尽管开发耐腐蚀高温材料的全部潜在好处几乎没有被探索。我计划通过对暴露于实验室熔炉中腐蚀性环境的样品进行高级表征，在高温机械测试期间以及对我的工业合作者提供的退役部件进行研究来解决这些问题。研究结果将用于设计新一代合金，其耐腐蚀性将根据其特定应用而定制。为了最大限度地发挥我的研究的影响，我将与我的工业合作伙伴密切合作，如劳斯莱斯公司，以及我的学术合作伙伴，包括迈克尔穆迪教授（原子探针断层扫描组，牛津大学），对样品进行分析，为合金设计提供信息，并生产具有更高耐腐蚀性的新型高温合金。腐蚀研究是非常及时和全球性的重要，有可能在未来节省大量资金和延长部件寿命。

项目成果

Development of a Novel, Impurity-Scavenging, Corrosion-Resistant Coating for Ni-Based Superalloy CMSX-4

• DOI: 10.1007/s11085-022-10142-2
• 发表时间: 2022-12-26
• 期刊: HIGH TEMPERATURE CORROSION OF MATERIALS
• 作者: Pek, M. E.;Ackerman, A. K.;Pedrazzini, S.
• 通讯作者: Pedrazzini, S.

Corrosion of 316L exposed to highly concentrated borated water used as shield in nuclear fusion experimental reactors cooling circuits

316L 暴露于核聚变实验反应堆冷却回路中用作屏蔽的高浓度硼酸水中的腐蚀

• DOI: 10.1016/j.corsci.2024.111902
• 发表时间: 2024
• 期刊: Corrosion Science
• 影响因子: 8.3
• 作者: Gasparrini C

Water Chemistry in Fusion Cooling Systems: Borated Water for DTT Vacuum Vessel

聚变冷却系统中的水化学：DTT 真空容器的硼酸水

• DOI: 10.1109/tps.2022.3161185
• 发表时间: 2022
• 期刊: IEEE Transactions on Plasma Science
• 影响因子: 1.5
• 作者: Gasparrini C

Effect of Substrate Bed Temperature on Solute Segregation and Mechanical Properties in Ti-6Al-4V Produced by Laser Powder Bed Fusion

基体床温对激光粉末床熔融Ti-6Al-4V溶质偏析和力学性能的影响

• DOI: 10.1007/s11661-023-07070-4
• 发表时间: 2023
• 期刊: Metallurgical and Materials Transactions A
• 作者: Pedrazzini S

A review on atom probe and correlative microscopy studies of corrosion in nickel-based superalloys

• DOI: 10.1557/s43577-022-00366-7
• 发表时间: 2022-07
• 期刊: MRS Bulletin
• 影响因子: 5
• 作者: C. Rodenkirchen;M. Appleton;M. Ryan;S. Pedrazzini