CAREER: Solute Effects on the Oxidation Behavior of Ni Alloys

职业：溶质对镍合金氧化行为的影响

• 批准号: 1352157
• 负责人: Emmanuelle Marquis
• 金额: $ 50万
• 依托单位: Regents of the University of Michigan - Ann Arbor
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 2014
• 资助国家: 美国
• 起止时间: 2014-06-01 至 2020-05-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=1352157&HistoricalAwards=false
• 关键词: CAREER; Solute; Effects; Oxidation; Behavior

Technical SummaryThis CAREER award supports an integrated educational and research plan focusing on student outreach, motivation, and creative thinking with goals of excellence in research and teaching in the field of physical metallurgy, environmental degradation of materials, and state-of-the-art microscopy. In the area of structural materials particularly for power generation applications, critical research is needed not merely on the intrinsic properties of structural materials, e.g. strength, toughness, or creep, but more significantly on the extrinsic response to external environments. The proposed philosophy is to unravel and quantify the mechanisms that controls materials properties at the atomic scale and to incorporate this information into alloy design "rules". Focusing on the dynamic segregation theory currently used for explaining the role of rare earth elements, the possible role of Si in the creation of a continuous oxide protective layer, and the competitive nature of thermodynamics and kinetics in defining the "third element effect", the proposed use of high spatial and chemical resolution characterization techniques in combination with theoretical modeling will provide quantitative information needed to answer long-standing open questions on the role of alloying. This new understanding is critically important for validation of computational models and use in design of oxidation resistant materials in a more efficient manner based on new alloy design approaches envisioned in the Materials Genome Initiative.Environmental degradation is ubiquitous; therefore methods, concepts, and training are translatable to a much larger range of materials science or materials engineering issues, from bio-implants to energy production, energy conversion, and light alloys for transportation. Through collaborations with the New York Metropolitan Museum and the French Laboratoire des Monuments Historiques, the proposed teaching and additional research experiences will broaden the scientific scope, by impacting other materials areas where oxidation and corrosion issues are significant, while adding a cultural component to the project. The program will foster the recruitment of under-represented minorities and women in particular into research activities. The exciting collaborative research, teaching, and outreach activities at all levels of the educational spectrum along with the development of open web-based teaching and research tools will provide students, professionals, and colleagues with unique opportunities to excel in their own research endeavors within a diverse setting while inspiring a sustained outreach mindset.Non-technical summaryThis CAREER award supports an integrated educational and research plan focusing on student outreach, motivation, and creative thinking with goals of excellence in research and teaching in the field of physical metallurgy, environmental degradation of materials, and state-of-the-art microscopy. In the area of structural materials particularly for power generation applications, critical research is needed not merely on the intrinsic properties of structural materials, e.g. strength, toughness, or creep, but more significantly on the extrinsic response to external environments. The effects of specific alloying elements on the oxidation response of model Ni-Al alloys will be investigated through direct imaging techniques allowing structures and chemistry to be visualized with near atomic resolution. In combination with theoretical modeling, this approach will provide quantitative information needed to answer long-standing open questions in the field of metal oxidation. Environmental degradation is ubiquitous; therefore investigation methods, concepts, and training are translatable to a much larger range of materials science or materials engineering issues, from bio-implants to energy production, energy conversion, and light alloys for transportation. Through collaborations with the New York Metropolitan Museum and the French Laboratoire des Monuments Historiques, the proposed teaching and additional research experiences will broaden the scientific scope of the project, by impacting other materials areas where oxidation and corrosion issues are significant. The program will foster the recruitment of under-represented minorities and women in particular into research activities. The exciting collaborative research, teaching and outreach activities at all levels of the educational spectrum and the development of open web-based teaching and research tools will provide students, professionals, and colleagues with unique opportunities to excel in their own research endeavors within a diverse setting while inspiring a sustained outreach mindset.

技术摘要这一职业奖支持一项综合的教育和研究计划，重点是学生外展，动机和创造性思维，具有卓越的物理冶金领域的研究和教学目标，材料的环境退化以及最先进的显微镜。 在结构材料的领域，尤其是用于发电应用的领域，不仅需要关于结构材料的内在特性，例如力量，韧性或蠕变，但更明显地在外部环境的外部反应上。 提出的理念是阐明和量化以原子量表控制材料特性的机制，并将这些信息纳入合金设计“规则”中。专注于目前用于解释稀土元素的作用的动态分离理论，SI在创建连续的氧化物保护层的创建中的可能作用，以及热力学和动力学在定义“第三元素效应”中的竞争性质，拟议在较高的空间和化学分辨率表征方面的拟议中，需要在范围内与开放的范围进行更长时间的范围，以应对量的长期构建技术，以应对量的长期构建技术，以便在理解的范围内构成数量的信息。 这种新的理解对于基于材料基因组倡议中设想的新合金设计方法的验证和在设计抗氧化材料设计中的使用至关重要。环境降解无处不在。因此，方法，概念和培训可以翻译成更大范围的材料科学或材料工程问题，从生物植入物到能源生产，能源转换和运输的轻合金。通过与纽约大都会博物馆和法国劳动力的合作，拟议的教学和其他研究经验将扩大科学范围，通过影响其他氧化和腐蚀问题的其他材料领域，同时为项目添加文化成分。 该计划将促进代表性不足的少数群体，尤其是妇女的招募。 The exciting collaborative research, teaching, and outreach activities at all levels of the educational spectrum along with the development of open web-based teaching and research tools will provide students, professionals, and colleagues with unique opportunities to excel in their own research endeavors within a diverse setting while inspiring a sustained outreach mindset.Non-technical summaryThis CAREER award supports an integrated educational and research plan focusing on student outreach, motivation, and creative thinking with goals of excellence in物理冶金学领域的研究和教学，材料的环境降解以及最先进的显微镜。 在结构材料的领域，尤其是用于发电应用的领域，不仅需要关于结构材料的内在特性，例如力量，韧性或蠕变，但更明显地在外部环境的外部反应上。 特定合金元件对模型Ni-AL合金氧化反应的影响将通过直接成像技术进行研究，从而使结构和化学能够通过接近原子分辨率进行可视化。结合理论建模，这种方法将提供在金属氧化领域回答长期存在的开放问题所需的定量信息。 环境降解无处不在；因此，调查方法，概念和培训可以翻译成更大范围的材料科学或材料工程问题，从生物植入剂到能源生产，能源转换和运输光合金。通过与纽约大都会博物馆和法国Laboratoire des Moniments历史的合作，拟议的教学和其他研究经验将通过影响氧化和腐蚀问题的其他材料领域，从而扩大该项目的科学范围。 该计划将促进代表性不足的少数群体，尤其是妇女的招募。激动人心的合作研究，教育范围的各个级别的教学和外展活动以及开放的基于网络的教学和研究工具的开发将为学生，专业人员和同事提供独特的机会，可以在自己的研究中努力，同时激发持续不断的外展心态。