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Comparative assessment of strength models for AA6063 alloy

  • Aluru Praveen Sekhar
  • , Supriya Nandy
  • , Kalyan Kumar Ray
  • , Debdulal Das
  • Indian Institute of Engineering Science and Technology, Shibpur
  • Indian Institute of Technology Kharagpur

Research output: Chapter in Book/Report/Conference proceedingConference article in proceedingsScientificpeer-review

Abstract

This report presents a comparative assessment of the suitability of two existing physical models for predicting yield strength of artificially aged AA6063 Al-alloy. One model is based on the modified Orowan mechanism of dislocation by-pass for non-shearable rod shaped precipitates rejuvenated by Zhu and Stark, and the other model is based on classical dislocation-particle interaction that incorporates both cutting and by-pass mechanisms for spherical shaped precipitates developed by Deschamps and Brechet. Using these models, simulation of yield strength values have been performed considering nucleation-growth as well as nucleation-growth-coarsening of precipitates during the entire period of ageing. Comparison of experimental and simulated results reveals that the model by Deschamps and Brechet predicts yield strength more accurately when nucleation-growth-coarsening of precipitates are incorporated.
Original languageEnglish
Title of host publication4th Asia Conference on Mechanical and Materials Engineering
EditorsMohd Hamdi Abdul Shukor, Hao Gong
PublisherTrans Tech Publications Ltd
Pages83-89
ISBN (Print)9783038357445
DOIs
Publication statusPublished - 2017
MoE publication typeA4 Article in a conference publication
Event4th Asia Conference on Mechanical and Materials Engineering, ACMME 2016 - Kuala Lumpur, Malaysia
Duration: 14 Jul 201618 Jul 2016

Publication series

SeriesMaterials Science Forum
Volume880
ISSN0255-5476

Conference

Conference4th Asia Conference on Mechanical and Materials Engineering, ACMME 2016
Country/TerritoryMalaysia
CityKuala Lumpur
Period14/07/1618/07/16

Keywords

  • Age hardening
  • Aluminum alloy
  • Modeling
  • Precipitation hardening

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