CAREER: Deformation-Based Surface Generation for Microstructure Control

职业：用于微结构控制的基于变形的表面生成

• 批准号: 1254818
• 负责人: Christopher Saldana
• 金额: $ 40万
• 依托单位: Pennsylvania State Univ University Park
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2013
• 资助国家: 美国
• 起止时间: 2013-07-01 至 2014-11-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=1254818&HistoricalAwards=false
• 关键词: CAREER; Deformation; Based; Surface; Generation

This Faculty Early Career Development (CAREER) award supports a project with the goal of elucidating the interdependence of deformation history, microstructure and thermomechanical properties in surface generation by novel impression and burnishing-based processes. To accomplish this, an experimental study will utilize controlled deformation platforms and a suite of advanced characterization methods to resolve local material conditions in the modified subsurface. Predictive models of microstructure and thermomechanical properties will be calibrated using these results to enable multi-role surface modification. The primary educational objective is the creation of a series of immersive experiences for students to elicit interest in manufacturing research. This includes deep dives in coupled design/manufacturing problems for minority high school students and a series of hands-on manufacturing design challenges for undergraduates. Graduate students will also engage in mentorship of high school students on semester-long design projects. These educational experiences are complemented by the integration of research outcomes in curricula and development of an interactive manufacturing speaker series.If successful, the research will result in new manufacturing processes that enable direct control of surface properties for a broad range of engineering components. This capability will benefit the nation's economy in enabling domestic manufacturers to be globally competitive in automotive, aerospace and biomedical systems applications where component surfaces strongly influence performance, service life, and operating cost. Societal benefits of the research include the rapid development of a new class of high-performance, surface-engineered components (e.g., turbine blades, bearing seals, hard-tissue implants) that will improve quality of life through enhanced performance. The integrated educational activities will help to develop the future domestic manufacturing workforce by promoting interest in manufacturing-related studies among high school students and undergraduates through novel experiential learning opportunities. Students will also gain globally-aware perspectives in problem solving activities as they will be connected across academic levels and cultural backgrounds in formal mentor-mentee relationships. Doctoral students will benefit from collaborative research opportunities in the form of international research exchanges and industrial internships.

该学院早期职业发展(CALEAR)奖支持一个项目，目的是阐明变形历史、微观结构和热机械性能在通过新的印记和基于抛光的工艺产生表面时的相互依赖关系。为此，一项实验研究将利用受控变形平台和一套先进的表征方法来解决修改后的地下表面的局部材料条件。微结构和热机械性能的预测模型将使用这些结果进行校准，以实现多功能表面改性。主要的教育目标是为学生创造一系列身临其境的体验，以激发他们对制造研究的兴趣。这包括针对少数族裔高中生的设计/制造耦合问题的深入研究，以及针对本科生的一系列动手制造设计挑战。研究生还将参与指导高中生为期一学期的设计项目。与这些教育经验相辅相成的是，在课程中整合了研究成果，并开发了交互式制造扬声器系列。如果成功，这项研究将导致新的制造工艺，使其能够直接控制广泛工程部件的表面特性。这一能力将有利于国家经济，使国内制造商在汽车、航空航天和生物医学系统应用领域具有全球竞争力，这些应用领域的零部件表面对性能、使用寿命和运营成本有很大影响。这项研究的社会效益包括快速开发新型高性能表面工程部件(例如涡轮叶片、轴承密封件、硬组织植入物)，这些部件将通过增强性能来提高生活质量。综合教育活动将通过新颖的体验式学习机会，提高高中生和本科生对制造业相关学习的兴趣，从而帮助培养未来的国内制造业劳动力。学生还将在解决问题的活动中获得全球意识，因为他们将在正式的导师-被辅导者关系中跨学术水平和文化背景联系在一起。博士生将受益于国际研究交流和产业实习等形式的合作研究机会。