Title

Water-Mediated Proton Hopping On An Iron Oxide Surface

Keywords

Hot rolling simulation; Mechanical characterization; Metal-matrix composites; Modeling; Strain-dependent modeling; Temperature-dependent

Abstract

Aluminum metal-matrix composites are lightweight materials that have the potential to supplant steel in many applications. The current work helps to identify the parameters that confer maximal strength and ductility. Torsion tests were performed on the as-cast aluminum metal-matrix composite A359-SiCp-30% at a variety of temperatures and twist rates. Dependence of material properties on temperature and strain rate were identified from equivalent stress-strain curves constructed from the reduced data. Examination of the microstructure was performed on the as-cast material and on fracture surfaces. A temperature- and strain rate-dependent constitutive model was applied to simulation of the mechanical response of the torsion specimen. Trends in material properties corroborate and extend trends identified previously under tensile loading with regard to temperature and strain rate dependence. Shear properties of simulated specimens agree with properties obtained through experimentation. © 2012 The Minerals, Metals, & Materials Society. All rights reserved.

Publication Date

5-18-2012

Publication Title

Science

Volume

336

Number of Pages

889-893

Document Type

Article

Personal Identifier

scopus

DOI Link

https://doi.org/10.1126/science.1219468

Socpus ID

84861207397 (Scopus)

Source API URL

https://api.elsevier.com/content/abstract/scopus_id/84861207397

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