IMR: Acquisition of a MATE Thermo-Mechanical Testing System for Research and Education in Materials Science and Engineering

这项NSF材料研究仪器（IMR）计划提案是为了获得MATE热机械测试系统，该系统可以执行各种机械性能测量，包括拉伸、压缩、低周和高周疲劳、热机械疲劳（TMF）、疲劳裂纹扩展（FCG）、蠕变、断裂韧性等。具有精确的（小于0.15%的非线性和小于0.10%的滞后）伺服液压控制，负载高达100kN，温度高达1200oC。此次收购的智力价值在于材料科学与工程的研究和教学，研究的材料包括金属、陶瓷、复合材料、玻璃、纳米材料等。该仪器的收购将对分析和教学能力做出重大贡献。在研究方面，MATE热机械测试系统将用于进一步了解由美国国家科学基金会、能源部（DOE）、国防部（DOD）、环境保护局（EPA）、美国汽车材料合作伙伴关系（USAMP）和工业赞助的项目中材料的加工-微观结构-性能关系。特别是，它将被用于了解高温结构合金的晶界变形过程和微观组织-性能关系，包括镍基高温合金和钛合金，由Carl Boehlert博士的NSF CAREER奖（DMR-0134789）研究。该研究计划的具体目标是开发高温结构合金的晶界工程（GBE）的未开发潜力。主要目的是了解加工过程、晶界特征分布（GBCD）和蠕变行为之间的相互关系。另外几个研究项目也将使用这种仪器。例如，它将用于疲劳、断裂韧性和FCG实验，以了解作为植入材料开发的生物医用钛合金的微观结构-性能关系。它还将用于研究镁合金、氮化硅、聚合物、玻璃等的力学行为。该NSF材料研究仪器（IMR）计划提案是为了获得MATE热机械测试系统，该系统可以执行各种机械性能测量，包括拉伸，压缩，低周和高周疲劳，热机械疲劳（TMF），疲劳裂纹扩展（FCG），蠕变，断裂韧性等。此次收购的智力价值在于材料科学与工程的研究和教学，研究的材料包括金属、陶瓷、复合材料、玻璃、纳米材料等。这种仪器将大大有利于本科和研究生的教学，将鼓励跨学科研究，并将建立新的研究能力进行研究和研究相关的教育。总的来说，该仪器的收购将有利于研究和教学，为本科生和研究生提供最先进的机械测试系统，作为他们课程和研究活动的一部分。这次收购的更广泛的影响包括产生现有设备没有提供的材料-财产信息，它将刺激对社区内新领域的材料进行调查。许多正在进行和计划中的研究项目在不同的大学院系中，突出多学科研究领域和各种材料系统，将受益于获得MATE热机械测试系统所带来的增强能力。

This NSF Instrumentation for Materials Research (IMR) Program proposal is for the acquisition of a MATE Thermo-Mechanical Test System, which can perform a variety of mechanical property measurements, including tension, compression, low- and high-cycle fatigue, thermomechanical fatigue (TMF), fatigue crack growth (FCG), creep, fracture toughness, etc., with precise (less than 0.15% nonlinearity and less than 0.10% hysteresis) servohydraulic control for loads up to 100kN and temperatures up to 1200oC. The intellectual merit of this acquisition lies in research and teaching of materials science and engineering, and the materials to be investigated include metals, ceramics, composites, glasses, nanomaterials, etc. This acquisition of this instrumentation will make significant contributions to analytical and teaching capabilities. In terms of research, the MATE Thermo-Mechanical Test System will be used to further the understanding of the processing-microstructure-property relationships of materials for projects sponsored by the NSF, the Department of Energy (DOE), the Department of Defense (DOD), the Environmental Protection Agency (EPA), the United States Automotive Materials Partnership (USAMP), and industry. In particular, it will be used to understand grain boundary deformation processes and microstructure-property relationships for high-temperature structural alloys, including nickel-based superalloys and titanium alloys, investigated with Dr. Carl Boehlert's NSF CAREER Award (DMR-0134789). The specific goal of this research program is to develop the untapped potential of grain boundary engineering (GBE) for high-temperature structural alloys. The primary objective is to understand the inter-relationship of processing, grain boundary character distribution (GBCD), and creep behavior. Several additional research projects will also utilize this instrumentation. For example, it will be used for fatigue, fracture toughness, and FCG experiments to understand microstructure-property relationships of biomedical Ti alloys being developed as implant materials. It will also be used to investigate the mechanical behavior of Mg alloys, Si3N4, polymers, glasses, etc. This NSF Instrumentation for Materials Research (IMR) Program proposal is for the acquisition of a MATE Thermo-Mechanical Test System, which can perform a variety of mechanical property measurements, including tension, compression, low- and high-cycle fatigue, thermomechanical fatigue (TMF), fatigue crack growth (FCG), creep, fracture toughness, etc. The intellectual merit of this acquisition lies in research and teaching of materials science and engineering, and the materials to be investigated include metals, ceramics, composites, glasses, nanomaterials, etc. This instrumentation will significantly benefit both undergraduate and graduate teaching, will encourage interdisciplinary studies, and will establish new research capabilities for performing research and research-related education. Overall, the acquisition of this instrumentation will benefit research and teaching by making a state-of-the-art mechanical testing system available to both undergraduate and graduate students as part of their curriculum and research activities. The broader impacts of this acquisition include the generation of material-property information not provided with existing equipment, and it will stimulate investigations of materials into new areas within the community. Many ongoing and planned research projects within the various university departments, highlighting multidisciplinary research areas and a variety of material systems, will benefit from the enhanced capabilities that the acquisition of the MATE Thermomechanical Test System will bring.