On the controversy about the presence of grain boundary sliding in Mg AZ31

Carl Boehlert, Zhe Chen, Iván Gutierrez-Urrutia, Javier Llorca, María Teresa Pérez-Prado

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

Abstract

Highly-textured, rolled AZ31 sheet material shows a significant drop in the plastic anisotropy (r-value; r=εwt) in tension between 25°C and 200°C. This behavior was initially explained as a result of the increased activity of non-basal slip with increased temperature. Other authors suggested, however, that the mechanism responsible for this phenomenon was the activation of grain boundary sliding (GBS). Here, in-situ tensile tests have been carried out in an SEM at various temperatures in order to obtain further evidence of the role of GBS during moderate to high temperature deformation of Mg alloys, which remains highly controversial.

LanguageEnglish (US)
Title of host publicationMaterials Science Forum
Pages22-25
Number of pages4
Volume735
DOIs
StatePublished - 2013
Event11th International Conference on Superplasticity in Advanced Materials, ICSAM 2012 - Albi, France
Duration: Jul 3 2012Jul 5 2012

Publication series

NameMaterials Science Forum
Volume735
ISSN (Print)02555476

Other

Other11th International Conference on Superplasticity in Advanced Materials, ICSAM 2012
CountryFrance
CityAlbi
Period7/3/127/5/12

Profile

Grain boundary sliding
sliding
grain boundaries
plastic anisotropy
tensile tests
slip
activation
Temperature
scanning electron microscopy
temperature
Anisotropy
Chemical activation
Plastics
Scanning electron microscopy

Keywords

  • Grain boundary sliding
  • In-situ test
  • Magnesium alloy

ASJC Scopus subject areas

  • Materials Science(all)
  • Condensed Matter Physics
  • Mechanical Engineering
  • Mechanics of Materials

Cite this

Boehlert, C., Chen, Z., Gutierrez-Urrutia, I., Llorca, J., & Pérez-Prado, M. T. (2013). On the controversy about the presence of grain boundary sliding in Mg AZ31. In Materials Science Forum (Vol. 735, pp. 22-25). (Materials Science Forum; Vol. 735). DOI: 10.4028/www.scientific.net/MSF.735.22

On the controversy about the presence of grain boundary sliding in Mg AZ31. / Boehlert, Carl; Chen, Zhe; Gutierrez-Urrutia, Iván; Llorca, Javier; Pérez-Prado, María Teresa.

Materials Science Forum. Vol. 735 2013. p. 22-25 (Materials Science Forum; Vol. 735).

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

Boehlert, C, Chen, Z, Gutierrez-Urrutia, I, Llorca, J & Pérez-Prado, MT 2013, On the controversy about the presence of grain boundary sliding in Mg AZ31. in Materials Science Forum. vol. 735, Materials Science Forum, vol. 735, pp. 22-25, 11th International Conference on Superplasticity in Advanced Materials, ICSAM 2012, Albi, France, 7/3/12. DOI: 10.4028/www.scientific.net/MSF.735.22
Boehlert C, Chen Z, Gutierrez-Urrutia I, Llorca J, Pérez-Prado MT. On the controversy about the presence of grain boundary sliding in Mg AZ31. In Materials Science Forum. Vol. 735. 2013. p. 22-25. (Materials Science Forum). Available from, DOI: 10.4028/www.scientific.net/MSF.735.22
Boehlert, Carl ; Chen, Zhe ; Gutierrez-Urrutia, Iván ; Llorca, Javier ; Pérez-Prado, María Teresa. / On the controversy about the presence of grain boundary sliding in Mg AZ31. Materials Science Forum. Vol. 735 2013. pp. 22-25 (Materials Science Forum).
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