Phase II I/UCRC Iowa State U Site: Center for Advanced Non-Ferrous Structural Alloys (CANFSA)

爱荷华州立大学(ISU)高级有色结构合金中心(CANFSA)由学生、博士后和教职员工组成，他们与科罗拉多矿业学院(Mines)的CANFSA同行合作，让来自行业和政府实验室的科学家和工程师了解有色合金的物理和机械冶金学(即合金化和加工对组织、性能和性能的影响)的基本知识。CANFSA的动机是解决这一领域学生培训的全国性下降问题，这一领域对美国在高性能材料、结构和先进制造领域的主导地位至关重要。今天，只剩下几所大学在这些对我们的工业如此关键的核心科学和工程领域培养学生，特别是在国家对新的先进材料和制造战略进行投资的情况下。事实上，这些下降大大削弱了教师、学生和相关行业之间以前存在的协同效应，这反过来又显著削弱了严重依赖这些材料的美国行业的技术主导地位。为应对这一趋势，CANFSA对这些先进材料及其制造进行了基础科学研究，从而填补了这一劳动力发展缺口，同时为美国的全球工业竞争力做出了贡献。CANFSA的目标是开展与开发、制造和使用先进有色金属结构合金的行业直接相关的基础和应用物理冶金研究，并在这些重要学科上培训学生。这是通过让学生参与对行业和政府实验室重要的主题，并让教职员工和外部导师指导学生的基础研究来实现的。中心内开展的项目的具体细节各不相同，因为选定的专题与工业界和国家实验室的合作伙伴最直接相关。到目前为止，该中心在下列领域开展了领先的研究：有色金属的热和机械加工(如第三代Al-Li合金，Ti-6Al-4V的织构各向异性)；超细晶合金及其机械行为(如钛和镁)；高强度β-Ti合金的时效；微共晶铝合金的加工；组织演变(如Ni-Ti-Hf金属间化合物、镍基高温合金、高熵合金)；多层涂层；无润滑剂的压铸；以及微量元素和微结构变化对机械性能的作用。为了进行这些不同的研究项目并实现中心的目标，在理论、建模、加工和表征领域拥有互补专业知识的教职员工正在与来自行业和政府实验室的成员合作。爱荷华州立大学拥有各种处理、表征和计算工具，可用于开展S中心的研究。这包括在新建立的敏感仪器设施和整个执行支助股园区的其他地方拥有最先进的电子显微镜和原子探测器能力。此外，研究人员还可以使用各种先进的处理设备和计算工具，这些设备和计算工具涵盖了各种方法，包括原子模拟技术、离散位错动力学、相场模拟、元胞自动机、有限元方法和基于FFT的模拟方法。可以进行从基本物理过程到宏观流体和热传递的各种计算。执行支助股的这种专业知识是对CSM的补充，总体来说，CANFSA能够为其成员提供一套独特的能力。

The Center for Advanced Non-Ferrous Structural Alloys (CANFSA) at Iowa State University (ISU) consists of students, post-docs and faculty who work with their CANFSA counterparts at the Colorado School of Mines (Mines) to engage scientists and engineers from both industry and government laboratories to discover fundamental understandings of the physical and mechanical metallurgy of non-ferrous alloys (i.e., alloying and processing effects on microstructure, properties and performance). The motivation for CANFSA is to address the national decline in the training of students in this area that is critical to U.S. dominance in high performance materials, structures and advanced manufacturing. Today, there are only a few universities remaining who train students in these core science and engineering areas that are so critical to our industries, especially as National investments are made in new advanced materials and manufacturing strategies. In fact, these declines have greatly reduced
 the synergies that existed previously between faculty, students, and the relevant industries, and this, in turn, has significantly weakened the technical dominance of US industries that rely heavily
 on these materials. CANFSA was organized to counter this trend by conducting fundamental scientific studies on these advanced materials and their manufacturing, thereby filling this workforce development gap and simultaneously contributing to U.S. global industrial competitiveness.The objective of CANFSA is to conduct basic and applied physical metallurgy 
research of direct relevance to the industries that develop, manufacture and use advanced 
non-ferrous structural alloys, and to train students in these important subjects. This is accomplished by engaging students in topics of importance to industry and government labs, and to have both faculty members and external mentors guide the students' fundamental research. The specific details of the projects that are conducted within the Center vary as topics are selected that have the most direct relevance for the partners from industry and the national laboratories. To date, the Center has conducted leading research in the areas of: thermal and mechanical processing of non-ferrous alloys (e.g., 3rd Generation Al-Li alloys, texture anisotropy of Ti-6Al-4V); ultrafine grained alloys and their mechanical behavior (e.g., Ti and Mg); aging of high-strength beta-Ti alloys; processing of microeutectic Al alloys; microstructural evolution (e.g., Ni-Ti-Hf intermetallics, Ni-based superalloys, high entropy alloys); multi-layer coatings; lube-free die casting; and the role of trace elements and small microstructural variations on mechanical properties. To conduct these varied research projects and accomplish the goals of the Center, faculty members with complementary 
expertise in the areas of theory, modeling, processing and characterization are working together with members from industry and government laboratories. Iowa State University has a variety of processing, characterization, and computational tools available on which to conduct the Center?s research. This includes state-of-the-art electron microscopy and atom probe capabilities in a newly established Sensitive Instrumentation Facility and elsewhere across ISU's campus. In addition, researchers have access to a variety of advanced processing equipment and computational tools that span across a wide range of methods, including: atomistic simulation techniques; discrete dislocation dynamics; phase field simulation; cellular automata; finite element methods and FFT-based simulation approaches. Computations can be made ranging from fundamental physical processes to macroscale fluid and heat transfer. This expertise at ISU is complementary to that at CSM, and collectively, CANFSA is able to offer a suite of unique capabilities to its membership.