Deformation twinning behaviors of the low stacking fault energy high-entropy alloy: An in-situ TEM study

The twinning mechanism in an FeCoNiCrAl0.1 high-entropy alloy was investigated by in-situ transmission electron microscopy. Deformation twins were commonly found on the conjugate plane and were produced by twinning dislocation gliding on every adjacent (111) plane layer by layer. The twinning disloc...

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Bibliographic Details
Published in:Scripta materialia 2017-08, Vol.137, p.9-12
Main Authors: Liu, Jiabin, Chen, Chenxu, Xu, Yuqing, Wu, Shiwei, Wang, Gang, Wang, Hongtao, Fang, Youtong, Meng, Liang
Format: Article
Language:English
Subjects:
High-entropy alloys
Metals and alloys
Transmission electron microscopy
Twinning
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Summary:The twinning mechanism in an FeCoNiCrAl0.1 high-entropy alloy was investigated by in-situ transmission electron microscopy. Deformation twins were commonly found on the conjugate plane and were produced by twinning dislocation gliding on every adjacent (111) plane layer by layer. The twinning dislocations were Shockley partials and were generated from the cross-slip. Deformation twins were produced by Shockley partials gliding on every adjacent (111) plane layer by layer. The Shockley partials were generated from the cross-slip. [Display omitted]
ISSN:1359-6462
1872-8456
DOI:10.1016/j.scriptamat.2017.05.001