Grain Growth in Nanocrystalline Mg-Al Thin Films
Abstract
We report that an improved understanding of grain growth kinetics in nanocrystalline materials, and in metals and alloys in general, is of continuing interest to the scientific community. In this study, Mg-Al thin films containing ~10 wt pct Al and with 14.5 nm average grain size were produced by magnetron sputtering and subjected to heat treatments. The grain growth evolution in the early stages of heat treatment at 423 K, 473 K, and 573 K (150 °C, 200 °C, and 300 °C) was observed with transmission electron microscopy and analyzed based upon the classical equation developed by Burke and Turnbull. The grain growth exponent was found to be 7 ± 2 and the activation energy for grain growth was 31.1 ± 13.4 kJ/mol, the latter being significantly lower than in bulk Mg-Al alloys. The observed grain growth kinetics are explained by the Al supersaturation in the matrix and the pinning effects of the rapidly forming beta precipitates and possibly shallow grain boundary grooves. In conclusion, the low activation energy is attributed to the rapid surface diffusion which is dominant in thin film systems.
- Authors:
-
- Pacific Northwest National Lab. (PNNL), Richland, WA (United States). Energy and Environment Directorate
- Pacific Northwest National Lab. (PNNL), Richland, WA (United States). Environmental and Molecular Sciences Laboratory
- Pacific Northwest National Lab. (PNNL), Richland, WA (United States). Physical & Computational Sciences Directorate
- Publication Date:
- Research Org.:
- Pacific Northwest National Lab. (PNNL), Richland, WA (United States)
- Sponsoring Org.:
- USDOE Office of Energy Efficiency and Renewable Energy (EERE); USDOE Office of Science (SC), Biological and Environmental Research (BER)
- OSTI Identifier:
- 1413510
- Report Number(s):
- PNNL-SA-113636
Journal ID: ISSN 1073-5623; PII: 4350; TRN: US1800443
- Grant/Contract Number:
- AC05-76RL01830
- Resource Type:
- Accepted Manuscript
- Journal Name:
- Metallurgical and Materials Transactions. A, Physical Metallurgy and Materials Science
- Additional Journal Information:
- Journal Volume: 48; Journal Issue: 12; Journal ID: ISSN 1073-5623
- Publisher:
- ASM International
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 36 MATERIALS SCIENCE
Citation Formats
Kruska, Karen, Rohatgi, Aashish, Vemuri, Rama S., Kovarik, Libor, Moser, Trevor H., Evans, James E., and Browning, Nigel D. Grain Growth in Nanocrystalline Mg-Al Thin Films. United States: N. p., 2017.
Web. doi:10.1007/S11661-017-4350-0.
Kruska, Karen, Rohatgi, Aashish, Vemuri, Rama S., Kovarik, Libor, Moser, Trevor H., Evans, James E., & Browning, Nigel D. Grain Growth in Nanocrystalline Mg-Al Thin Films. United States. https://doi.org/10.1007/S11661-017-4350-0
Kruska, Karen, Rohatgi, Aashish, Vemuri, Rama S., Kovarik, Libor, Moser, Trevor H., Evans, James E., and Browning, Nigel D. Thu .
"Grain Growth in Nanocrystalline Mg-Al Thin Films". United States. https://doi.org/10.1007/S11661-017-4350-0. https://www.osti.gov/servlets/purl/1413510.
@article{osti_1413510,
title = {Grain Growth in Nanocrystalline Mg-Al Thin Films},
author = {Kruska, Karen and Rohatgi, Aashish and Vemuri, Rama S. and Kovarik, Libor and Moser, Trevor H. and Evans, James E. and Browning, Nigel D.},
abstractNote = {We report that an improved understanding of grain growth kinetics in nanocrystalline materials, and in metals and alloys in general, is of continuing interest to the scientific community. In this study, Mg-Al thin films containing ~10 wt pct Al and with 14.5 nm average grain size were produced by magnetron sputtering and subjected to heat treatments. The grain growth evolution in the early stages of heat treatment at 423 K, 473 K, and 573 K (150 °C, 200 °C, and 300 °C) was observed with transmission electron microscopy and analyzed based upon the classical equation developed by Burke and Turnbull. The grain growth exponent was found to be 7 ± 2 and the activation energy for grain growth was 31.1 ± 13.4 kJ/mol, the latter being significantly lower than in bulk Mg-Al alloys. The observed grain growth kinetics are explained by the Al supersaturation in the matrix and the pinning effects of the rapidly forming beta precipitates and possibly shallow grain boundary grooves. In conclusion, the low activation energy is attributed to the rapid surface diffusion which is dominant in thin film systems.},
doi = {10.1007/S11661-017-4350-0},
journal = {Metallurgical and Materials Transactions. A, Physical Metallurgy and Materials Science},
number = 12,
volume = 48,
place = {United States},
year = {Thu Oct 05 00:00:00 EDT 2017},
month = {Thu Oct 05 00:00:00 EDT 2017}
}
Free Publicly Available Full Text
Publisher's Version of Record
Other availability
Search WorldCat to find libraries that may hold this journal
Save to My Library
You must Sign In or Create an Account in order to save documents to your library.
Works referenced in this record:
Section thickness, macrohardness and yield strength in high-pressure diecast magnesium alloy AZ91
journal, August 2005
- Cáceres, C. H.; Poole, W. J.; Bowles, A. L.
- Materials Science and Engineering: A, Vol. 402, Issue 1-2
In-situ TEM observations of abnormal grain growth, coarsening, and substrate de-wetting in nanocrystalline Ag thin films
journal, July 2000
- Dannenberg, Rand; Stach, E. A.; Groza, J. R.
- Thin Solid Films, Vol. 370, Issue 1-2
Structure Evolution During Processing of Polycrystalline Films
journal, August 2000
- Thompson, C. V.
- Annual Review of Materials Science, Vol. 30, Issue 1
Grain growth in Ni-Fe thin films
journal, December 1974
- Gangulee, A.; Krongelb, S.; Das, G.
- Thin Solid Films, Vol. 24, Issue 2
TEM annealing study of normal grain growth in silver thin films
journal, December 2000
- Dannenberg, Rand; Stach, Eric; Groza, Joanna R.
- Thin Solid Films, Vol. 379, Issue 1-2
Microstructural evolution of rheo-diecast AZ91D magnesium alloy during heat treatment
journal, February 2006
- Wang, Y.; Liu, G.; Fan, Z.
- Acta Materialia, Vol. 54, Issue 3
The influence of high temperature exposure on aging kinetics of a die cast magnesium alloy
journal, November 2002
- Cerri, E.; Barbagallo, S.
- Materials Letters, Vol. 56, Issue 5
Texture enhancement during grain growth of magnesium alloy AZ31B
journal, March 2015
- Bhattacharyya, J. J.; Agnew, S. R.; Muralidharan, G.
- Acta Materialia, Vol. 86
Precipitate morphology and orientation relationships in an aged Mg-9% Al-1% Zn-0.3% Mn alloy
journal, May 1974
- Crawley, A. F.; Milliken, K. S.
- Acta Metallurgica, Vol. 22, Issue 5
Grain growth kinetics of bulk AZ31 magnesium alloy by hot pressing
journal, June 2012
- Wang, Xin; Hu, Lianxi; Liu, Kai
- Journal of Alloys and Compounds, Vol. 527
Discontinuous and continuous precipitation in magnesium–aluminium type alloys
journal, May 2009
- Braszczyńska-Malik, K. N.
- Journal of Alloys and Compounds, Vol. 477, Issue 1-2
Grain growth kinetics of a fine-grained AZ31 magnesium alloy produced by hot rolling
journal, March 2010
- Miao, Qing; Hu, Lianxi; Wang, Xin
- Journal of Alloys and Compounds, Vol. 493, Issue 1-2
In situ TEM study of grain growth in nanocrystalline copper thin films
journal, March 2010
- Simões, S.; Calinas, R.; Vieira, M. T.
- Nanotechnology, Vol. 21, Issue 14
Nanoscale characterisation of grain boundary oxidation in cold-worked stainless steels
journal, October 2012
- Kruska, Karen; Lozano-Perez, Sergio; Saxey, David W.
- Corrosion Science, Vol. 63
Recrystallization and grain growth
journal, January 1952
- Burke, J. E.; Turnbull, D.
- Progress in Metal Physics, Vol. 3
Interdiffusion and Phase Growth Kinetics in Magnesium-Aluminum Binary System
journal, January 2013
- Kulkarni, Kaustubh N.; Luo, Alan A.
- Journal of Phase Equilibria and Diffusion, Vol. 34, Issue 2
Grain growth kinetics in nanostructured nickel
journal, November 1999
- Iordache, M. C.; Whang, S. H.; Jiao, Z.
- Nanostructured Materials, Vol. 11, Issue 8
In situ observation of ageing process and new morphologies of continuous precipitates in AZ91 magnesium alloy
journal, October 2007
- Zhou, J. P.; Zhao, D. S.; Wang, R. H.
- Materials Letters, Vol. 61, Issue 25
Grain growth in nanocrystalline iron prepared by mechanical attrition
journal, May 1997
- Malow, T. R.; Koch, C. C.
- Acta Materialia, Vol. 45, Issue 5
Crystallography of Mg17Al12 precipitates in AZ91D alloy
journal, March 2003
- Zhang, M. -X.; Kelly, P. M.
- Scripta Materialia, Vol. 48, Issue 5
Grain growth and kinetics for nanocrystalline magnesium alloy produced by mechanical alloying
journal, March 2001
- Cao, Peng; Lu, Li; Lai, M. O.
- Materials Research Bulletin, Vol. 36, Issue 5-6
On description of grain growth kinetics
journal, September 1998
- Novikov, V. Yu
- Scripta Materialia, Vol. 39, Issue 7
Growth kinetics of cellular precipitation in a Mg–8.5Al–0.5Zn–0.2Mn (wt.%) alloy
journal, November 2010
- Contreras-Piedras, Edgar; Esquivel-Gonzalez, Ramón; López-Hirata, Víctor M.
- Materials Science and Engineering: A, Vol. 527, Issue 29-30
Recrystallization and grain growth in bulk Cu and Cu(Sn) alloy
journal, June 1997
- Huang, J. S.; Zhang, J.; Cuevas, A.
- Materials Chemistry and Physics, Vol. 49, Issue 1
Stress-assisted discontinuous grain growth and its effect on the deformation behavior of nanocrystalline aluminum thin films
journal, May 2006
- Gianola, D. S.; Van Petegem, S.; Legros, M.
- Acta Materialia, Vol. 54, Issue 8
Kinetics of grain growth in nanocrystalline magnesium-based metal–metal composite synthesized by mechanical alloying
journal, March 2006
- Thein, M.; Lu, L.; Lai, M.
- Composites Science and Technology, Vol. 66, Issue 3-4
The effect of thermal grooving on grain boundary motion
journal, June 1958
- Mullins, W. W.
- Acta Metallurgica, Vol. 6, Issue 6