The influence of interface structure on nanocrystalline deformation of a layered and nanostructured steel

A. Y. Chen; Y. K. Li; J. B. Zhang; D. Pan; J. Lu

doi:10.1016/j.matdes.2012.11.050

Author(s)

A. Y. Chen
Y. K. Li
J. B. Zhang
D. Pan
J. Lu

Detail(s)

Original language	English
Pages (from-to)	316-322
Journal / Publication	Materials and Design
Volume	47
Publication status	Published - May 2013

Link(s)

DOI	DOI https://doi.org/10.1016/j.matdes.2012.11.050 Final Published version
	Check@CityULib
Link to Scopus	https://www.scopus.com/record/display.uri?eid=2-s2.0-84872559782&origin=recordpage
Permanent Link	https://scholars.cityu.edu.hk/en/publications/publication(f68925a0-4977-4664-8daf-9619f4e04775).html

Abstract

The structural reliability of many brittle materials can rely on the occurrence of intergranular, as opposed to transgranular, fracture in order to maintain high toughness by crack bridging. The current work examines effects of interface structure and grain size distribution on promoting intergranular fracture of nanostructured materials. A layered and nanostructured (LaNa) stainless steel was produced by combination of surface mechanical attrition treatment with warm co-rolling. The microstructure of LaNa steel is characterized by periodic distribution of nanocrystalline layer, ultrafine grained layer and micron grained layer, where the grain size exhibits a graded transition. The large ductility of LaNa steel is achieved by an interlaminar multiple cracking, which is induced by interface debonding and crack deflection at the weak and strong interface bonding zones, respectively. The size-dependent deformation of nanocrystalline is discussed. © 2012 Elsevier Ltd.

Research Area(s)

A. Nanomaterial, B. Laminates, F. Plastic behavior

Citation Format(s)

[ RIS ] [ BibTeX ]

The influence of interface structure on nanocrystalline deformation of a layered and nanostructured steel. / Chen, A. Y.; Li, Y. K.; Zhang, J. B. et al.
In: Materials and Design, Vol. 47, 05.2013, p. 316-322.

Research output: Journal Publications and Reviews (RGC: 21, 22, 62) › 21_Publication in refereed journal › peer-review

Chen, AY, Li, YK, Zhang, JB, Pan, D & Lu, J 2013, 'The influence of interface structure on nanocrystalline deformation of a layered and nanostructured steel', Materials and Design, vol. 47, pp. 316-322. https://doi.org/10.1016/j.matdes.2012.11.050

Chen, A. Y., Li, Y. K., Zhang, J. B., Pan, D., & Lu, J. (2013). The influence of interface structure on nanocrystalline deformation of a layered and nanostructured steel. Materials and Design, 47, 316-322. https://doi.org/10.1016/j.matdes.2012.11.050

Chen AY, Li YK, Zhang JB, Pan D, Lu J. The influence of interface structure on nanocrystalline deformation of a layered and nanostructured steel. Materials and Design. 2013 May;47:316-322. doi: 10.1016/j.matdes.2012.11.050

Chen, A. Y. ; Li, Y. K. ; Zhang, J. B. et al. / The influence of interface structure on nanocrystalline deformation of a layered and nanostructured steel. In: Materials and Design. 2013 ; Vol. 47. pp. 316-322.