Please use this identifier to cite or link to this item: http://hdl.handle.net/10397/6935
Title: Thermal stability and corrosion resistance of nanocrystallized zirconium formed by surface mechanical attrition treatment
Authors: Han, Y
Zhang, L
Lu, J
Zhang, W
Keywords: Corrosion
Nanostructure
Zr
Issue Date: Oct-2009
Publisher: Cambridge University Press
Source: Journal of materials research, Oct. 2009, v. 24, no. 10, p. 3136-3145 How to cite?
Journal: Journal of materials research 
Abstract: The thermal stability and corrosion behavior of the nanostructured layer on commercially pure zirconium, produced by surface mechanical attrition treatment (SMAT), were investigated. It is indicated that the nanograined Zr is stable at annealing temperatures up to 650 °C, above which significant grain growth occurs and the grain size shows parabolic relationship with annealing time. The activation energy for grain growth of the nanograined Zr is 59 kJ/mol at 750–850 °C, and the grain growth is dominated by grain-boundary diffusion. The as-SMATed nanograined Zr exhibits higher corrosion resistance than the 550–750 °C annealed SMATed Zr and the unSMATed coarse-grained Zr. It is indicated that the corrosion resistance of Zr tends to increase with the reduction of grain size, which is related to the dilution of segregated impurities at grain boundaries due to grain refinement and the formation of passive protection film.
URI: http://hdl.handle.net/10397/6935
ISSN: 0884-2914 (print)
2044-5326 (EISSN)
DOI: 10.1557/jmr.2009.0368
Rights: © 2009 Materials Research Society
The following article "Yong Han, Lan Zhang, Jian Lu and Wengting Zhang (2009). Thermal stability and corrosion resistance of nanocrystallized zirconium formed by surface mechanical attrition treatment. Journal of Materials Research, 24(10), pp 3136-3145. doi:10.1557/jmr.2009.0368." is available at http://journals.cambridge.org/action/displayAbstract?fromPage=online&aid=7950066
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