Plasticity of an extra-strong nanocrystalline stainless steel controlled by the “dislocation-segregation” interaction

N. A. Enikeev,I. V. Lomakin,M. M. Abramova,A. M. Mavlyutov,A. A. Lukyanchuk,A. S. Shutov,X. Sauvage

Materials Letters（2021）

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摘要

•Three nanocrystalline (NC) 316 steels with similar grain size have been produced.•These NC states have different parameters of GBs and dislocation structure.•Interplay of GB segregations with dislocations governs plasticity in NC steels.•Significant increase in plasticity of the extra-strong NC 316 steel is achieved.

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关键词

Nanostructured materials,Stainless steels,Plasticity,Grain boundary,Segregation,Deformation mechanisms

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