De-twinning via secondary twinning in face-centered cubic alloys

Y. Cao; Y. B. Wang; Z. B. Chen; X. Z. Liao; M. Kawasaki; S. P. Ringer; T. G. Langdon; Y. T. Zhu

doi:10.1016/j.msea.2013.04.075

De-twinning via secondary twinning in face-centered cubic alloys

Y. Cao, Y. B. Wang, Z. B. Chen, X. Z. Liao, M. Kawasaki, S. P. Ringer, T. G. Langdon, Y. T. Zhu

Research output: Journal article publication › Journal article › Academic research › peer-review

40 Citations (Scopus)

Abstract

We report a de-twinning process via secondary twinning in face-centred cubic structures with low stacking fault energies. A duplex stainless steel was deformed using high-pressure torsion. Primary twins with an average twin boundary (TB) spacing of ~7. nm formed in the early stages of the deformation and this was followed by secondary twinning. The partial dislocations from the secondary twinning subsequently interacted with the primary TBs, leading to the de-twinning of the primary twins. As a result of the de-twinning process, the secondary twins with an average TB spacing of ~1.7. nm reached a maximum length of ~200. nm.

Original language	English
Pages (from-to)	110-114
Number of pages	5
Journal	Materials Science and Engineering A
Volume	578
DOIs	https://doi.org/10.1016/j.msea.2013.04.075
Publication status	Published - 20 Aug 2013
Externally published	Yes

Keywords

De-twinning
Severe plastic deformation
Steel
Transmission electron microscopy
Twinning

ASJC Scopus subject areas

General Materials Science
Condensed Matter Physics
Mechanics of Materials
Mechanical Engineering

More information

10.1016/j.msea.2013.04.075

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title = "De-twinning via secondary twinning in face-centered cubic alloys",

abstract = "We report a de-twinning process via secondary twinning in face-centred cubic structures with low stacking fault energies. A duplex stainless steel was deformed using high-pressure torsion. Primary twins with an average twin boundary (TB) spacing of ~7. nm formed in the early stages of the deformation and this was followed by secondary twinning. The partial dislocations from the secondary twinning subsequently interacted with the primary TBs, leading to the de-twinning of the primary twins. As a result of the de-twinning process, the secondary twins with an average TB spacing of ~1.7. nm reached a maximum length of ~200. nm.",

keywords = "De-twinning, Severe plastic deformation, Steel, Transmission electron microscopy, Twinning",

author = "Y. Cao and Wang, {Y. B.} and Chen, {Z. B.} and Liao, {X. Z.} and M. Kawasaki and Ringer, {S. P.} and Langdon, {T. G.} and Zhu, {Y. T.}",

note = "Funding Information: The authors would like to acknowledge the scientific and technical input and support from the Australian Microscopy & Microanalysis Research Facility node at the University of Sydney . This project is supported by the Australian Research Council (Grant no. DP120100510 (Y.C., Y.B.W. and X.Z.L.)), the National Science Foundation of the United States (Grant no. DMR-1160966 (M.K. and T.G.L.) and Grant no. DMR-1104667 (Y.T.Z.)).",

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doi = "10.1016/j.msea.2013.04.075",

language = "English",

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TY - JOUR

T1 - De-twinning via secondary twinning in face-centered cubic alloys

AU - Cao, Y.

AU - Wang, Y. B.

AU - Chen, Z. B.

AU - Liao, X. Z.

AU - Kawasaki, M.

AU - Ringer, S. P.

AU - Langdon, T. G.

AU - Zhu, Y. T.

N1 - Funding Information: The authors would like to acknowledge the scientific and technical input and support from the Australian Microscopy & Microanalysis Research Facility node at the University of Sydney . This project is supported by the Australian Research Council (Grant no. DP120100510 (Y.C., Y.B.W. and X.Z.L.)), the National Science Foundation of the United States (Grant no. DMR-1160966 (M.K. and T.G.L.) and Grant no. DMR-1104667 (Y.T.Z.)).

PY - 2013/8/20

Y1 - 2013/8/20

N2 - We report a de-twinning process via secondary twinning in face-centred cubic structures with low stacking fault energies. A duplex stainless steel was deformed using high-pressure torsion. Primary twins with an average twin boundary (TB) spacing of ~7. nm formed in the early stages of the deformation and this was followed by secondary twinning. The partial dislocations from the secondary twinning subsequently interacted with the primary TBs, leading to the de-twinning of the primary twins. As a result of the de-twinning process, the secondary twins with an average TB spacing of ~1.7. nm reached a maximum length of ~200. nm.

AB - We report a de-twinning process via secondary twinning in face-centred cubic structures with low stacking fault energies. A duplex stainless steel was deformed using high-pressure torsion. Primary twins with an average twin boundary (TB) spacing of ~7. nm formed in the early stages of the deformation and this was followed by secondary twinning. The partial dislocations from the secondary twinning subsequently interacted with the primary TBs, leading to the de-twinning of the primary twins. As a result of the de-twinning process, the secondary twins with an average TB spacing of ~1.7. nm reached a maximum length of ~200. nm.

KW - De-twinning

KW - Severe plastic deformation

KW - Steel

KW - Transmission electron microscopy

KW - Twinning

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DO - 10.1016/j.msea.2013.04.075

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AN - SCOPUS:84879137332

SN - 0921-5093

VL - 578

SP - 110

EP - 114

JO - Materials Science and Engineering A

JF - Materials Science and Engineering A

ER -

De-twinning via secondary twinning in face-centered cubic alloys

Abstract

Keywords

ASJC Scopus subject areas

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