Hostname: page-component-76d6cb85b7-kcxw8 Total loading time: 0 Render date: 2026-07-14T11:08:33.107Z Has data issue: false hasContentIssue false

Alloy design for mechanical properties: Conquering the length scales

Published online by Cambridge University Press:  09 April 2019

Irene J. Beyerlein
Affiliation:
Department of Mechanical Engineering, Materials Department, University of California, Santa Barbara, USA; beyerlein@ucsb.edu
Shuozhi Xu
Affiliation:
California NanoSystems Institute, University of California, Santa Barbara, USA; shuozhixu@ucsb.edu
Javier Llorca
Affiliation:
IMDEA Materials Institute, and Department of Materials Science, Polytechnic University of Madrid, Spain; javier.llorca@imdea.org
Jaafar A. El-Awady
Affiliation:
Department of Mechanical Engineering, Whiting School of Engineering, Johns Hopkins University, USA; jelawady@jhu.edu
Jaber R. Mianroodi
Affiliation:
Microstructure Physics and Alloy Design, Max-Planck-Institut für Eisenforschung GmbH; and Material Mechanics, RWTH Aachen University, Germany; j.mianroodi@mpie.de
Bob Svendsen
Affiliation:
Microstructure Physics and Alloy Design, Max-Planck-Institut für Eisenforschung GmbH; and Material Mechanics, RWTH Aachen University, Germany; b.svensden@mpie.de
Get access

Abstract

Predicting the structural response of advanced multiphase alloys and understanding the underlying microscopic mechanisms that are responsible for it are two critically important roles that modeling plays in alloy development. The demonstration of superior properties of an alloy, such as high strength, creep resistance, high ductility, and fracture toughness, is not sufficient to secure its use in widespread applications. Still, a good model is needed to take measurable alloy properties, such as microstructure and chemical composition, and forecast how the alloy will perform in specified mechanical deformation conditions, including temperature, time, and rate. Here, we highlight recent achievements using multiscale modeling in elucidating the coupled effects of alloying, microstructure, and mechanism dynamics on the mechanical properties of polycrystalline alloys. Much of the understanding gained by these efforts relies on the integration of computational tools that vary over many length scales and time scales, from first-principles density functional theory, atomistic simulation methods, dislocation and defect theory, micromechanics, phase-field modeling, single crystal plasticity, and polycrystalline plasticity.

Information

Type
Computational Design And Development Of Alloys
Copyright
Copyright © Materials Research Society 2019 

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

Article purchase

Temporarily unavailable