Phase II IUCRC at University of Tennessee, Knoxville (UTK): Manufacturing and Materials Joining Innovation Center (Ma2JIC)

田纳西大学诺克斯维尔分校 (UTK) 的第二阶段 IUCRC：制造和材料连接创新中心 (Ma2JIC)

• 批准号: 1822186
• 负责人: Claudia Rawn
• 金额: $ 20万
• 依托单位: University of Tennessee Knoxville
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 2018
• 资助国家: 美国
• 起止时间: 2018-08-15 至 2023-08-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=1822186&HistoricalAwards=false
• 关键词: Phase; II; IUCRC; University; Tennessee

The Manufacturing and Materials Joining Innovation Center (Ma2JIC) research aims to close the gap between materials development and weldability by developing scientifically based methodologies for assessing weldability and joinability that span length scales over a wide variety of materials. The University of Tennessee, Knoxville (UTK) site strengths include materials development, crosscutting capabilities including multi-scale characterization and modeling, and metal additive manufacturing (AM). AM technologies have the potential to benefit society in a multitude of ways including reducing scarce and dwindling raw materials and producing unique parts for variety of applications associated with aerospace, infrastructure, energy, and automotive industries. Equally important is educating and developing a new generation of materials joining engineers and scientists. Engineers will design by building layer-by-layer and parts can feature unlimited possibilities in design complexity. During Phase I the UTK site of Ma2JIC established collaborative research with small-, medium- and large-scale industries and national laboratories and began shaping and refining a research agenda based on industrial needs. During Phase II the Ma2JIC UTK site seeks to continue to grow these collaborations along with research relevant to future and existing manufacturing industries, establishing new collaborations, and initiating projects that will strengthen collaborations with the other Ma2JIC sites.Technical efforts of the Ma2JIC UTK site promote innovations in welding, materials joining, and additive manufacturing technologies through interdisciplinary research bringing together design, robotics and automation, process innovation/control, materials science, advanced characterization and high-performance computational modeling. The research portfolio of the UTK site brings capabilities in the area of large-scale additive metal manufacturing and characterization techniques, especially using radiation based scattering and imaging using neutrons and X-rays. The end results of the projects will be focused on promoting higher yields and scale-up of proven laboratory developments relevant to aerospace, infrastructure, energy, and automotive applications. The research promotes scientific discoveries related to the thermo-mechanical-chemical properties of new and existing materials consolidated and joined using traditional and new techniques. Complementary computational and experimental characterization techniques, including in situ and ex situ conditions, will be applied to understand issues such as cyclic thermal and stress loading, residual stress development, and microstructural evolution. The UTK site will produce fundamental research techniques and students versed in these techniques at the crossroads of joining and additive manufacturing.This award reflects NSF's statutory mission and has been deemed worthy of support through evaluation using the Foundation's intellectual merit and broader impacts review criteria.

制造和材料连接创新中心（Ma 2 JIC）的研究旨在通过开发基于科学的方法来评估跨越各种材料长度尺度的可焊性和可连接性，从而缩小材料开发和可焊性之间的差距。 田纳西大学诺克斯维尔分校（UTK）的优势包括材料开发、横切能力（包括多尺度表征和建模）以及金属增材制造（AM）。 增材制造技术有潜力以多种方式造福社会，包括减少稀缺和不断减少的原材料，并为航空航天、基础设施、能源和汽车行业的各种应用生产独特的零件。同样重要的是教育和开发新一代材料，与工程师和科学家一起工作。工程师将通过逐层构建进行设计，部件可以在设计复杂性方面具有无限的可能性。在第一阶段，Ma 2 JIC的UTK网站与小型，中型和大型工业和国家实验室建立了合作研究，并开始根据工业需求制定和完善研究议程。 在第二阶段，Ma 2 JIC UTK工厂寻求继续发展这些合作，沿着与未来和现有制造业相关的研究，建立新的合作，并启动将加强与其他Ma 2 JIC工厂合作的项目。Ma 2 JIC UTK工厂的技术努力促进焊接，材料连接和增材制造技术的创新，通过跨学科研究将设计，机器人和自动化、工艺创新/控制、材料科学、高级表征和高性能计算建模。UTK工厂的研究组合带来了大规模增材金属制造和表征技术领域的能力，特别是使用中子和X射线的辐射散射和成像。这些项目的最终结果将集中在促进更高的产量和扩大与航空航天、基础设施、能源和汽车应用相关的经验证的实验室开发。该研究促进了与使用传统和新技术巩固和连接的新材料和现有材料的热机械化学特性有关的科学发现。互补的计算和实验表征技术，包括原位和非原位条件，将被应用于了解的问题，如循环热和应力加载，残余应力的发展，和微观结构的演变。UTK网站将产生基础研究技术和精通这些技术的学生在连接和增材制造的十字路口。这个奖项反映了NSF的法定使命，并已被认为是值得通过使用基金会的智力价值和更广泛的影响审查标准进行评估的支持。

项目成果

On the solid-state-bonding mechanism in friction stir welding

• DOI: 10.1016/j.eml.2020.100727
• 发表时间: 2020-05
• 期刊: Extreme Mechanics Letters
• 影响因子: 4.7
• 作者: Xue Wang;Yanfei Gao;Martin McDonnell;Zhili Feng

Geometric effects on competing failure modes in lap shear testing of spot joints

点接头搭接剪切试验中竞争失效模式的几何效应

• 发表时间: 2022
• 期刊: China Welding
• 作者: Tushar, Telmasre;Abdelrahman, Abdelmotagaly;Gao, Yanfei;Yu, Zhenzhen
• 通讯作者: Yu, Zhenzhen

Hybrid manufacturing of Invar mold for carbon fiber layup using structured light scanning

使用结构光扫描混合制造碳纤维铺层殷钢模具

• 发表时间: 2022
• 期刊: Manufacturing letters
• 影响因子: 3.9
• 作者: Cornelius, Aaron;Jacobs, Leah;Lamsey, Matthew;McNeil, Logan;Hamel, William;Schmitz, Tony
• 通讯作者: Schmitz, Tony

Fatigue-Damage Initiation at Process Introduced Internal Defects in Electron-Beam-Melted Ti-6Al-4V

电子束熔化 Ti-6Al-4V 过程中引入内部缺陷的疲劳损伤引发

• DOI: 10.3390/met13020350
• 发表时间: 2023
• 期刊: Metals
• 影响因子: 2.9
• 作者: Fleishel, Robert;Ferrell, William;TerMaath, Stephanie
• 通讯作者: TerMaath, Stephanie

Piping and Pressure Vessel Welding Automation through Adaptive Planning and Control

• DOI: 10.1007/s11837-019-03912-y
• 发表时间: 2019-11
• 期刊: JOM
• 影响因子: 2.6
• 作者: Sam Robertson;J. Penney;J. L. McNeil;W. Hamel;D. Gandy;G. Frederick;Jonanthan Tatman