NSF-Europe: The Mechanisms of Grain Refinement with Severe Plastic Deformation Leading to Nanoscale Microstructures

这是意大利安科纳大学和加州大学圣地亚哥分校之间的一项合作研究项目的赠款。这项研究的目的是通过严重的塑性变形产生非常精细的纳米级晶粒度。安科纳大学有一笔来自国家材料研究所(INFM)的赠款，用于“超细晶铝合金的物理方面”，这笔NSF赠款是一种机制，通过允许提供补充INFM研究的资金来大幅加强合作。INFM研究的一个主要目标是利用铝合金的等通道转角挤压(ECA)作为一种生产纳米晶粒度铝合金的方法。美国团队的努力旨在了解严重塑性变形导致细化晶粒度的具体机制。这项研究有望减轻在寻求生产具有商业价值的非常细晶合金的过程中所涉及的经验主义。UCSD集团将利用UCSD和安科纳大学的机械设施。研究生、博士后学者和教职员工将参加这些机构之间的长期交流(三个月至一年)。该合作计划在范围上具有很强的互补性，并将为利用国际专业知识加强研究提供机会。该NSF项目由多学科活动办公室、材料研究司(金属研究)和国际办公室(西欧)共同资助，作为NSF和欧洲之间的材料研究合作活动(NSF 02-135)。该项目是与意大利安科纳的安科纳大学合作实施的。

This is a grant for a collaborative research program between the University of Ancona, Ancona, Italy and the University of California at San Diego. The objective of the study is to produce very refined grain size to the nanoscale through severe plastic deformation. The University of Ancona has a grant from the Istituto Nazionale per la Fisica della Materia (INFM) for "Physical Aspects of Ultrafine Grained Aluminum Alloys," and this NSF grant is a mechanism to substantially enhance collaboration by permitting funding that is complementary to the INFM study. A major goal of the INFM study is to use equal channel angular (ECA) pressing of aluminum alloys as a means to produce nanoscale grain size aluminum alloys. The effort by the US team is directed towards understanding the specific mechanisms by which the severe plastic deformation leads to a refined grain size. The study is expected to alleviate the empiricism involved in the quest to produce very fine-grained alloys of commercial value. The UCSD group will utilize both the mechanical facilities at UCSD and the University of Ancona. Graduate students, postdoctoral scholars and faculty will participate in exchanges on long-term basis (three months to one year) between these institutions. The collaborative program is very complementary in scope, and will give an opportunity to enhance the research by taking advantage of the international expertise.This NSF project is co-funded by the Office of Multidisciplinary Activities, the Division of Materials Research (Metals Research) and International Office (Western Europe) as a Cooperative Activity in Materials Research between the NSF and Europe (NSF 02-135). This project is being carried out in collaboration with University of Ancona, Ancona, Italy.