Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
1498732 | Scripta Materialia | 2013 | 4 Pages |
Abstract
The last few years have highlighted the existence of two relevant length scales in the quest to ultrahigh-strength polycrystalline metals. Whereas the microstructural length scale – e.g. grain or twin size – has mainly be linked to the well-established Hall–Petch relationship, the sample length scale – e.g. nanopillar size – has also proven to be at least as relevant, especially in microscale structures. In this letter, a series of ballistic tests on functionally graded nanocrystalline plates are used as a basis for the justification of a “grain size gradient length scale” as an additional ballistic properties optimization parameter.
Related Topics
Physical Sciences and Engineering
Materials Science
Ceramics and Composites
Authors
Antoine Jérusalem, William Dickson, Maria Jesús Pérez-Martín, Ming Dao, Jian Lu, Francisco Gálvez,