Dislocation character transition and related mechanical response in a body-centered cubic single crystal

Ling Zhang; Takahito Ohmura; Kaoru Sekido; Toru Hara; Kiyomi Nakajima; Kaneaki Tsuzaki

doi:10.1016/j.scriptamat.2012.05.032

Dislocation character transition and related mechanical response in a body-centered cubic single crystal

Ling Zhang, Takahito Ohmura, Kaoru Sekido, Toru Hara, Kiyomi Nakajima, Kaneaki Tsuzaki

Research output: Contribution to journal › Article › peer-review

15 Citations (Scopus)

Abstract

In situ compression of a body-centered cubic single crystal Fe-3% Si pillar in transmission electron microscopy (TEM) by scanning TEM mode was performed to observe a single dislocation moving through the pillar in real time. The deformation is characterized by a series of pronounced pop-ins, which are accompanied by increases in stress. It is shown that these stress increases are caused by the change from an edge dislocation dominated process to a screw dislocation dominated process.

Original language	English
Pages (from-to)	388-391
Number of pages	4
Journal	Scripta Materialia
Volume	67
Issue number	4
DOIs	https://doi.org/10.1016/j.scriptamat.2012.05.032
Publication status	Published - Aug 2012
Externally published	Yes

All Science Journal Classification (ASJC) codes

Materials Science(all)
Condensed Matter Physics
Mechanics of Materials
Mechanical Engineering
Metals and Alloys

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10.1016/j.scriptamat.2012.05.032

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title = "Dislocation character transition and related mechanical response in a body-centered cubic single crystal",

abstract = "In situ compression of a body-centered cubic single crystal Fe-3% Si pillar in transmission electron microscopy (TEM) by scanning TEM mode was performed to observe a single dislocation moving through the pillar in real time. The deformation is characterized by a series of pronounced pop-ins, which are accompanied by increases in stress. It is shown that these stress increases are caused by the change from an edge dislocation dominated process to a screw dislocation dominated process.",

author = "Ling Zhang and Takahito Ohmura and Kaoru Sekido and Toru Hara and Kiyomi Nakajima and Kaneaki Tsuzaki",

note = "Funding Information: The financial support from the Ministry of Education, Science, Sports and Culture , Grant-in-Aid for Scientific Research (C) , No. 23560852 (2011) is greatly acknowledged. ",

year = "2012",

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language = "English",

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T1 - Dislocation character transition and related mechanical response in a body-centered cubic single crystal

AU - Zhang, Ling

AU - Ohmura, Takahito

AU - Sekido, Kaoru

AU - Hara, Toru

AU - Nakajima, Kiyomi

AU - Tsuzaki, Kaneaki

N1 - Funding Information: The financial support from the Ministry of Education, Science, Sports and Culture , Grant-in-Aid for Scientific Research (C) , No. 23560852 (2011) is greatly acknowledged.

PY - 2012/8

Y1 - 2012/8

N2 - In situ compression of a body-centered cubic single crystal Fe-3% Si pillar in transmission electron microscopy (TEM) by scanning TEM mode was performed to observe a single dislocation moving through the pillar in real time. The deformation is characterized by a series of pronounced pop-ins, which are accompanied by increases in stress. It is shown that these stress increases are caused by the change from an edge dislocation dominated process to a screw dislocation dominated process.

AB - In situ compression of a body-centered cubic single crystal Fe-3% Si pillar in transmission electron microscopy (TEM) by scanning TEM mode was performed to observe a single dislocation moving through the pillar in real time. The deformation is characterized by a series of pronounced pop-ins, which are accompanied by increases in stress. It is shown that these stress increases are caused by the change from an edge dislocation dominated process to a screw dislocation dominated process.

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EP - 391

JO - Scripta Materialia

JF - Scripta Materialia

IS - 4

ER -

Dislocation character transition and related mechanical response in a body-centered cubic single crystal

Abstract

All Science Journal Classification (ASJC) codes

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