In-situ analysis of the slip activity during tensile deformation of cast and extruded Mg-10Gd-3Y-0.5Zr (wt.%) at 250°C

H. Wang, C. J. Boehlert, Q. D. Wang, D. D. Yin, W. J. Ding

Research output: Contribution to journalArticle

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Abstract

The slip activity and slip interaction in tensile deformation of peak-aged cast and extruded Mg-10Gd-3Y-0.5Zr (wt.%) at 250°C was investigated using in-situ scanning electron microscopy. Basal slip was the most likely system to be activated during the tensile deformation, while prismatic and pyramidal slip also contributed to the deformation. No twinning was observed. The number of non-basal slip systems accounted for ~ 36% of the total active slip systems for the cast alloy, while non-basal slip accounted for 12-17% of the total deformation observations in the extruded alloy. Multiple-slip was observed within grains, and the basal/prismatic pairing type dominated the multiple-slip observations. Slip transfer occurred across grain boundaries and most of the slip transfer observations showed basal-basal type. The involved slip systems of slip transfer pairs were always associated with the same direction. The slip transfer occurred more easily at low angle boundaries (LABs) and boundaries with misorientations greater than 75°.

LanguageEnglish (US)
Pages8-17
Number of pages10
JournalMaterials Characterization
Volume116
DOIs
StatePublished - Jun 1 2016

Profile

tensile deformation
casts
slip
Twinning
Grain boundaries
Scanning electron microscopy
cast alloys
twinning
misalignment

Keywords

  • High-temperature deformation
  • In-situ SEM
  • Mg-RE alloy
  • Slip activity
  • Slip transfer

ASJC Scopus subject areas

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

Cite this

In-situ analysis of the slip activity during tensile deformation of cast and extruded Mg-10Gd-3Y-0.5Zr (wt.%) at 250°C. / Wang, H.; Boehlert, C. J.; Wang, Q. D.; Yin, D. D.; Ding, W. J.

In: Materials Characterization, Vol. 116, 01.06.2016, p. 8-17.

Research output: Contribution to journalArticle

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abstract = "The slip activity and slip interaction in tensile deformation of peak-aged cast and extruded Mg-10Gd-3Y-0.5Zr (wt.{\%}) at 250°C was investigated using in-situ scanning electron microscopy. Basal slip was the most likely system to be activated during the tensile deformation, while prismatic and pyramidal slip also contributed to the deformation. No twinning was observed. The number of non-basal slip systems accounted for ~ 36{\%} of the total active slip systems for the cast alloy, while non-basal slip accounted for 12-17{\%} of the total deformation observations in the extruded alloy. Multiple-slip was observed within grains, and the basal/prismatic pairing type dominated the multiple-slip observations. Slip transfer occurred across grain boundaries and most of the slip transfer observations showed basal-basal type. The involved slip systems of slip transfer pairs were always associated with the same direction. The slip transfer occurred more easily at low angle boundaries (LABs) and boundaries with misorientations greater than 75°.",
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AU - Yin,D. D.

AU - Ding,W. J.

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