Superplastic forming response of a friction stir processed Mg alloy sheet - A numerical approach

Mohammad Albakri*, Bilal Mansoor, Ahmad Albakri, Marwan Khraisheh

*Corresponding author for this work

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

Abstract

Friction stir process (FSP) is a severe plastic deformation based secondary processing technique that can be utilized to engineer novel microstructures in metallic alloys. It is well known that such techniques are cumbersome and require significant experimental work and material to determine optimum processing conditions. Therefore in this work, we propose a new two step numerical approach, where: (i) CFD simulations coupled with Zener-Holloman relation are used to predict microstructure evolution in stirred, transition and heat affected zones of friction stir processed AZ31 Mg alloy sheets, (ii) Finite element simulations are carried out to evaluate superplastic forming characteristics of different microstructures developed after FSP. Simulation trends including forming pressure profiles, dome height evolution, and thickness distribution of friction stir processed sheets are compared with those of the base material. The proposed combination of numerical approaches to model both processing and forming aspects yields a powerful tool to study and optimize processing and forming technologies with limited experimentation.

Original languageEnglish
Title of host publicationSuperplasticity in Advanced Materials - ICSAM 2012
PublisherTrans Tech Publications Ltd
Pages192-197
Number of pages6
ISBN (Print)9783037855539
DOIs
Publication statusPublished - 2013
Externally publishedYes
Event11th International Conference on Superplasticity in Advanced Materials, ICSAM 2012 - Albi, France
Duration: 3 Jul 20125 Jul 2012

Publication series

NameMaterials Science Forum
Volume735
ISSN (Print)0255-5476
ISSN (Electronic)1662-9752

Conference

Conference11th International Conference on Superplasticity in Advanced Materials, ICSAM 2012
Country/TerritoryFrance
CityAlbi
Period3/07/125/07/12

Keywords

  • FEM
  • Friction stir processing
  • Grain refinement
  • Layered microstructure
  • Superplasticity

Fingerprint

Dive into the research topics of 'Superplastic forming response of a friction stir processed Mg alloy sheet - A numerical approach'. Together they form a unique fingerprint.

Cite this