A microstructure-based model for superplastic deformation and damage in magnesium alloys

Hesamaldin Askari, Hao Lu, Hussein Zbib, Mohammed Khaleel, Ghassan Kridli

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

The need to produce fuel efficient vehicles and reduced emissions has led the automotive industries to the use of the lightweight materials. The use of magnesium alloys through superplastic forming is very promising for this goal while it makes the manufacturing part less complex and reduces the weight of the parts extensively. Aside to their strength and ductility, magnesium alloys still need a major improvement to be studied before they can be considered as lightweight materials in automotive industries. That improvement is in fact developing the best thermo-mechanical processing approach considering several aspects of the microstructure and modeling and optimization of the deformation process. The objective of this study is to establish such a constitutive model and using this model to effectively obtain the optimum loading path and processing temperature to avoid local thinning and rupture of the material. This constitutive model integrates the effects of microstructural dynamics and their evolution with other continuum properties such as flow rule, hardening, temperature and strain rate.

Original languageEnglish
Title of host publicationASME 2011 International Mechanical Engineering Congress and Exposition, IMECE 2011
Pages435-436
Number of pages2
Volume8
Publication statusPublished - 1 Dec 2011
Externally publishedYes
EventASME 2011 International Mechanical Engineering Congress and Exposition, IMECE 2011 - Denver, CO, United States
Duration: 11 Nov 201117 Nov 2011

Other

OtherASME 2011 International Mechanical Engineering Congress and Exposition, IMECE 2011
CountryUnited States
CityDenver, CO
Period11/11/1117/11/11

Fingerprint

Superplastic deformation
Magnesium alloys
Constitutive models
Automotive industry
Microstructure
Processing
Ductility
Hardening
Strain rate
Temperature

ASJC Scopus subject areas

  • Mechanical Engineering

Cite this

Askari, H., Lu, H., Zbib, H., Khaleel, M., & Kridli, G. (2011). A microstructure-based model for superplastic deformation and damage in magnesium alloys. In ASME 2011 International Mechanical Engineering Congress and Exposition, IMECE 2011 (Vol. 8, pp. 435-436)

A microstructure-based model for superplastic deformation and damage in magnesium alloys. / Askari, Hesamaldin; Lu, Hao; Zbib, Hussein; Khaleel, Mohammed; Kridli, Ghassan.

ASME 2011 International Mechanical Engineering Congress and Exposition, IMECE 2011. Vol. 8 2011. p. 435-436.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Askari, H, Lu, H, Zbib, H, Khaleel, M & Kridli, G 2011, A microstructure-based model for superplastic deformation and damage in magnesium alloys. in ASME 2011 International Mechanical Engineering Congress and Exposition, IMECE 2011. vol. 8, pp. 435-436, ASME 2011 International Mechanical Engineering Congress and Exposition, IMECE 2011, Denver, CO, United States, 11/11/11.
Askari H, Lu H, Zbib H, Khaleel M, Kridli G. A microstructure-based model for superplastic deformation and damage in magnesium alloys. In ASME 2011 International Mechanical Engineering Congress and Exposition, IMECE 2011. Vol. 8. 2011. p. 435-436
Askari, Hesamaldin ; Lu, Hao ; Zbib, Hussein ; Khaleel, Mohammed ; Kridli, Ghassan. / A microstructure-based model for superplastic deformation and damage in magnesium alloys. ASME 2011 International Mechanical Engineering Congress and Exposition, IMECE 2011. Vol. 8 2011. pp. 435-436
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