Improved back stress and synergetic strain hardening in coarse-grain/nanostructure laminates

Yanfei Wang; Muxin Yang; Xiaolong Ma; Mingsai Wang; Kun Yin; Aihui Huang; Chongxiang Huang

doi:10.1016/j.msea.2018.04.107

Author(s)

Yanfei Wang
Muxin Yang
Mingsai Wang
Kun Yin
Aihui Huang
Chongxiang Huang

Detail(s)

Original language	English
Pages (from-to)	113-118
Journal / Publication	Materials Science and Engineering A
Volume	727
Publication status	Published - 6 Jun 2018
Externally published	Yes

Link(s)

DOI	DOI https://doi.org/10.1016/j.msea.2018.04.107 Final Published version
	Check@CityULib
Link to Scopus	https://www.scopus.com/record/display.uri?eid=2-s2.0-85046806681&origin=recordpage
Permanent Link	https://scholars.cityu.edu.hk/en/publications/publication(875f152f-37cf-4c09-b513-b33358d07deb).html

Abstract

The effect of back stress on the mechanical behaviors of heterogeneous material is studied in two modeled heterogeneous laminates, i.e. laminated structure with a nanostructured (NS) Cu-Zn alloy layer sandwiched between two coarse-grained (CG) pure Cu layers. The improved tensile ductility of NS layer is revealed and attributed to the constraint from the stable CG layers. It is found that the elastic/plastic interaction between NS and CG layers is capable of significantly improving the back stress, which makes a significant contribution to the synergetic strain hardening in low strain stage. Furthermore, a higher mechanical incompatibility permits stronger and longer mutual interaction between layers, i.e. coupling effect, which contributes to a higher back stress. These results improve our understanding about the role of back stress on mechanical behaviors of heterogeneous laminate materials.

Research Area(s)

Back stress, Elastic/plastic interaction, Laminate, Nanostructure, Strain hardening

Bibliographic Note

Publication details (e.g. title, author(s), publication statuses and dates) are captured on an “AS IS” and “AS AVAILABLE” basis at the time of record harvesting from the data source. Suggestions for further amendments or supplementary information can be sent to [email protected].

Citation Format(s)

[ RIS ] [ BibTeX ]

Improved back stress and synergetic strain hardening in coarse-grain/nanostructure laminates. / Wang, Yanfei; Yang, Muxin; Ma, Xiaolong et al.
In: Materials Science and Engineering A, Vol. 727, 06.06.2018, p. 113-118.

Research output: Journal Publications and Reviews › RGC 21 - Publication in refereed journal › peer-review

Wang, Y, Yang, M, Ma, X, Wang, M, Yin, K, Huang, A & Huang, C 2018, 'Improved back stress and synergetic strain hardening in coarse-grain/nanostructure laminates', Materials Science and Engineering A, vol. 727, pp. 113-118. https://doi.org/10.1016/j.msea.2018.04.107

Wang, Y., Yang, M., Ma, X., Wang, M., Yin, K., Huang, A., & Huang, C. (2018). Improved back stress and synergetic strain hardening in coarse-grain/nanostructure laminates. Materials Science and Engineering A, 727, 113-118. https://doi.org/10.1016/j.msea.2018.04.107

Wang Y, Yang M, Ma X, Wang M, Yin K, Huang A et al. Improved back stress and synergetic strain hardening in coarse-grain/nanostructure laminates. Materials Science and Engineering A. 2018 Jun 6;727:113-118. doi: 10.1016/j.msea.2018.04.107

Wang, Yanfei ; Yang, Muxin ; Ma, Xiaolong et al. / Improved back stress and synergetic strain hardening in coarse-grain/nanostructure laminates. In: Materials Science and Engineering A. 2018 ; Vol. 727. pp. 113-118.