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Full Record Details
Persistent URL
http://purl.org/net/epubs/work/56098
Record Status
Checked
Record Id
56098
Title
In-situ Neutron Diffraction Study of the Deformation Behaviour of Two High-Manganese Austenitic Steels
Contributors
Ru Lin Peng (Linköping University)
,
X Liu (Northeastern University)
,
Y Wang (Northeastern University)
,
S Y Zhang (STFC Rutherford Appleton Lab.)
,
Y Shen (Northeastern University)
,
S Johansson (Linköping University)
Abstract
In-situ neutron diffraction experiments under tensile loading were carried out to study the micromechanical behaviour of two iron-manganese based steels, a TWIP (twinning induced plasticity) steel with 30 wt% Mn and a TRIP steel (transformation induced plasticity) with 20 wt% Mn. The former was loaded to 31.3% strain and the latter to 20% strain. The 30 wt.% Mn steel had a fully austenitic microstructure which remained stable over the loading range studied, while stress induced austenite to α´- and ε-martensite transformations occur in the 20 wt.% Mn steel which initially contained an α´-martensite in addition to the austenite. The evolution of lattice strains under tensile loading differs between the two steels, reflected their different plastic deformation mechanisms. A stronger grain-orientation dependent behaviour is observed during deformation for the 20 wt.% Mn in contrast to the 30wt.% Mn steel.
Organisation
ISIS
,
ISIS-ENGIN-X
,
STFC
Keywords
Engineering
Funding Information
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Language
English (EN)
Type
Details
URI(s)
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Year
Journal Article
Mater Sci Forum
681 (2011): 474-479.
doi:10.4028/www.s…ific.net/MSF.681.474
2011
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