Ultrafine-grained nanocluster-strengthened alloys with unusually high creep strength

J. H. Schneibel; C. T. Liu; M. K. Miller; M. J. Mills; P. Sarosi; M. Heilmaier; D. Sturm

doi:10.1016/j.scriptamat.2009.06.034

Author(s)

J. H. Schneibel
M. K. Miller
M. J. Mills
P. Sarosi
M. Heilmaier
D. Sturm

Detail(s)

Original language	English
Pages (from-to)	793-796
Journal / Publication	Scripta Materialia
Volume	61
Issue number	8
Publication status	Published - Oct 2009
Externally published	Yes

Link(s)

DOI	DOI https://doi.org/10.1016/j.scriptamat.2009.06.034 Final Published version
	Check@CityULib
Link to Scopus	https://www.scopus.com/record/display.uri?eid=2-s2.0-68349096390&origin=recordpage
Permanent Link	https://scholars.cityu.edu.hk/en/publications/publication(108a58bb-8c6a-44ca-8314-0fdf78c9c1df).html

Abstract

The microstructure and mechanical properties of ultrafine-grained ferritic alloys containing nanoclusters (NCs) are investigated. The NCs (diameter ∼3 nm) as well as the grain size (∼200 nm) remain stable at 1000^oC. Substantial Hall-Petch strengthening occurs at room temperature. Surprisingly, the creep rate at 800^oC is up to a factor of 10⁸ slower than that predicted for diffusional creep. Possible reasons are the high NC coverage as well as Cr and W enrichment at the grain boundaries, and inhibition of self-diffusion. © 2009 Acta Materialia Inc.

Research Area(s)

Atom probe tomography, Creep test, Mechanical alloying, Nanocluster (NC), Oxide dispersion-strengthened (ODS) alloy

Citation Format(s)

[ RIS ] [ BibTeX ]

Ultrafine-grained nanocluster-strengthened alloys with unusually high creep strength. / Schneibel, J. H.; Liu, C. T.; Miller, M. K. et al.
In: Scripta Materialia, Vol. 61, No. 8, 10.2009, p. 793-796.

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

Schneibel, JH, Liu, CT, Miller, MK, Mills, MJ, Sarosi, P, Heilmaier, M & Sturm, D 2009, 'Ultrafine-grained nanocluster-strengthened alloys with unusually high creep strength', Scripta Materialia, vol. 61, no. 8, pp. 793-796. https://doi.org/10.1016/j.scriptamat.2009.06.034

Schneibel, J. H., Liu, C. T., Miller, M. K., Mills, M. J., Sarosi, P., Heilmaier, M., & Sturm, D. (2009). Ultrafine-grained nanocluster-strengthened alloys with unusually high creep strength. Scripta Materialia, 61(8), 793-796. https://doi.org/10.1016/j.scriptamat.2009.06.034

Schneibel JH, Liu CT, Miller MK, Mills MJ, Sarosi P, Heilmaier M et al. Ultrafine-grained nanocluster-strengthened alloys with unusually high creep strength. Scripta Materialia. 2009 Oct;61(8):793-796. doi: 10.1016/j.scriptamat.2009.06.034

Schneibel, J. H. ; Liu, C. T. ; Miller, M. K. et al. / Ultrafine-grained nanocluster-strengthened alloys with unusually high creep strength. In: Scripta Materialia. 2009 ; Vol. 61, No. 8. pp. 793-796.