Experiment and FEM analysis of tensile behavior of bimodal nanocrystalline Al-Mg alloys

Autor:	Steven R. Nutt, Enrique J. Lavernia, Zonghoon Lee, Johnathan Lee
Předmět:	Tensile behavior Materials science Mg alloys Hot isostatic pressing Extrusion Composite material Ductility Nanocrystalline material Finite element method
Zdroj:	Scopus-Elsevier
Popis:	The tensile behavior of bimodal nanocrystalline Al-7.5Mg alloys was investigated using experiments and two-dimensional axisymmetric elastic-plastic finite element method (FEM). Cryomilled nanocrystalline powders blended with 15% and 30% unmilled coarse-grained powders were consolidated by hot isostatic pressing followed by extrusion to produce bulk bimodal nanocrystalline Al-7.5Mg alloys, which were comprised of nanocrystalline grains separated by coarse-grain regions. The calculated stress-strain curves have acceptable agreement with experimental curves of the bimodal structures. The bimodal Al-7.5Mg alloys show reasonable ductility while retaining enhanced strength compared to conventional alloys and nanocrystalline metals.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_dedup___::4a8077abfa0ae66891581df7afbe753d http://www.scopus.com/inward/record.url?eid=2-s2.0-14944386449&partnerID=MN8TOARS Zobrazit plný text záznamu