Simultaneous reductions of dislocation and twin densities with grain growth during cold rolling in a nanocrystalline Ni-Fe alloy

L. Li; T. Ungár; Y. D. Wang; G. J. Fan; Y. L. Yang; N. Jia; Y. Ren; G. Tichy; J. Lendvai; H. Choo; P. K. Liaw

doi:10.1016/j.scriptamat.2008.10.031

Author(s)

L. Li
T. Ungár
Y. D. Wang
G. J. Fan
Y. L. Yang
N. Jia
G. Tichy
J. Lendvai
H. Choo
P. K. Liaw

Detail(s)

Original language	English
Pages (from-to)	317-320
Journal / Publication	Scripta Materialia
Volume	60
Issue number	5
Publication status	Published - Mar 2009
Externally published	Yes

Link(s)

DOI	DOI https://doi.org/10.1016/j.scriptamat.2008.10.031 Final Published version
	Check@CityULib
Link to Scopus	https://www.scopus.com/record/display.uri?eid=2-s2.0-57949100472&origin=recordpage
Permanent Link	https://scholars.cityu.edu.hk/en/publications/publication(6e83c000-74d5-4f0d-98fb-316801ff2844).html

Abstract

Microstructures in nanocrystalline Ni-Fe alloys during cold rolling are quantitatively investigated by synchrotron high-energy X-ray diffraction. It is found that rolling leads to an obvious reduction in the densities of both dislocations and twins and an increase in crystallite size. A huge dislocation flux flows through the grains during rolling, even though only a small fraction remains in the specimen after rolling. A mechanically induced relaxation of the initial high-excited state of materials is revealed. © 2008 Acta Materialia Inc.

Research Area(s)

Cold rolling, Nanocrystalline, Ni-Fe alloy, X-ray diffraction

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 ]

Simultaneous reductions of dislocation and twin densities with grain growth during cold rolling in a nanocrystalline Ni-Fe alloy. / Li, L.; Ungár, T.; Wang, Y. D. et al.
In: Scripta Materialia, Vol. 60, No. 5, 03.2009, p. 317-320.

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

Li, L, Ungár, T, Wang, YD, Fan, GJ, Yang, YL, Jia, N, Ren, Y, Tichy, G, Lendvai, J, Choo, H & Liaw, PK 2009, 'Simultaneous reductions of dislocation and twin densities with grain growth during cold rolling in a nanocrystalline Ni-Fe alloy', Scripta Materialia, vol. 60, no. 5, pp. 317-320. https://doi.org/10.1016/j.scriptamat.2008.10.031

Li, L., Ungár, T., Wang, Y. D., Fan, G. J., Yang, Y. L., Jia, N., Ren, Y., Tichy, G., Lendvai, J., Choo, H., & Liaw, P. K. (2009). Simultaneous reductions of dislocation and twin densities with grain growth during cold rolling in a nanocrystalline Ni-Fe alloy. Scripta Materialia, 60(5), 317-320. https://doi.org/10.1016/j.scriptamat.2008.10.031

Li L, Ungár T, Wang YD, Fan GJ, Yang YL, Jia N et al. Simultaneous reductions of dislocation and twin densities with grain growth during cold rolling in a nanocrystalline Ni-Fe alloy. Scripta Materialia. 2009 Mar;60(5):317-320. doi: 10.1016/j.scriptamat.2008.10.031

Li, L. ; Ungár, T. ; Wang, Y. D. et al. / Simultaneous reductions of dislocation and twin densities with grain growth during cold rolling in a nanocrystalline Ni-Fe alloy. In: Scripta Materialia. 2009 ; Vol. 60, No. 5. pp. 317-320.