Collaborative Research: Nanostructured Alloys With Unprecedented Properties

合作研究：具有前所未有的性能的纳米结构合金

• 批准号: 0626541
• 负责人: Henry Yang
• 金额: --
• 依托单位: University of California-Santa Barbara
• 依托单位国家: 美国
• 项目类别: Continuing grant
• 财政年份: 2006
• 资助国家: 美国
• 起止时间: 2006-10-01 至 2012-09-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0626541&HistoricalAwards=false
• 关键词: Collaborative; Research; Nanostructured; Alloys; Unprecedented

AbstractCOLLABORATIVE RESEARCH: NANOSTRUCTURED ALLOYS WITH UNPRECEDENTED PROPERTIESHenry T. Y. Yang (UCSB), Srinivasan Chandrasekar (Purdue) and W. Dale Compton (Purdue) The UCSB-Purdue collaboration capitalizes on the recent discovery of a method for large-scale production of nanostructured materials. The method induces large plastic strains at the millimeter-scale by using a controlled surface deformation process analogous to machining. Direct manufacture of the materials in the form of foil, wire, and sheet of macroscopic dimensions is feasible. The materials have mechanical strength up to three times that of the parent material. The formation of the nanostructures is a consequence of the extraordinarily high strains imposed by the deformation system. The collaboration exploits these discoveries with two coordinated thrusts. First, the wide range of controllable deformation parameters will allow for systematic examination of the parameters (e.g., strain, strain rate) affecting the formation of nanocrystalline structures. Second, models will be developed for microstructure refinement during large strain deformation to assess the interactive role of strain, temperature and material transformations. By integrating these thrusts, protocols will be developed for developing novel property combinations by cost-effective manufacturing processes. Widespread use of nanostructured alloys in structural applications has been sought; however, the cost of creating these materials, quoted in excess of one hundred dollars per pound, has restricted their broad application. The research will provide an important bridge between the understanding of nanostructure refinement during large strain deformation as an important scientific phenomenon, and the utilization of nanostructured materials in products in the bio-medical, ground transportation and energy sectors. The transition to applications will be facilitated by interactions with a rapidly growing advanced materials company and a start-up, both with market interests in Advanced Materials and Micro/Meso Systems. Complementing the research is an education program featuring industrial internships for graduate students, undergraduate research internships and strong interactions with industry and National Labs.

摘要调查研究：纳米结构的合金，具有前所未有的Propertieshenry T. Y. Y. Y. Y. Y. Y. Y. Y. Y. Y. Y. Y. Y. Y. Y. Y. Y. Y. Y. Y. Y.该方法通过使用类似于加工的受控表面变形工艺在毫米级诱导大型塑料菌株。可行的材料，钢丝和底片的形式直接生产材料是可行的。这些材料的机械强度最高为母体材料的三倍。 纳米结构的形成是变形系统施加的非常高应变的结果。该协作通过两个协调的推力来利用这些发现。首先，广泛的可控变形参数将允许对影响纳米晶结构形成的参数进行系统检查（例如应变，应变速率）。其次，将开发模型在大型应变变形过程中进行微观结构的细化，以评估应变，温度和材料转化的互动作用。通过整合这些推力，将制定协议，以通过成本效益的制造过程来开发新型的财产组合。 已经寻求广泛使用纳米结构合金在结构应用中的使用；但是，创建这些材料的成本（每磅超过一百美元）限制了它们的广泛应用。这项研究将在大型应变变形过程中对纳米结构细化的理解作为一种重要的科学现象之间的理解，以及在生物医学，地面运输和能量部门中纳米结构材料的利用。 与快速增长的高级材料公司的互动和一家初创企业的互动将促进对应用程序的过渡，包括先进材料和微型/中间系统的市场利益。补充这项研究是一项教育计划，其中包括针对研究生的工业实习，本科生研究实习以及与行业和国家实验室的强烈互动。