Abstract
The healing kinetics of nanometer-scale voids in Al-Mg-Er and Al-Mg-Zn-Er alloy systems were investigated with a combination of in situ transmission electron microscopy and electron tomography at different temperatures. Mg was observed completely healing the voids, which were then rejuvenated to the alloy composition with further aging, in the Al-Mg-Er alloy. On the contrary, Mg51Zn20 intermetallic compound was formed in voids in the Al-Mg-Zn-Er alloy, which leads to complete filling of the voids but not rejuvenation for the material. For voids with different geometrical aspects, different evolution processes were observed, which are related to the competition between bulk and surface diffusion of the alloys. For voids with a large size difference in their two ends, a viscous flow of surface atoms can be directly observed with in situ electron microscopy, when the size of one end becomes less than tens of nanometers.
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1. M. Song, K. Du, S. P. Wen, Z. R. Nie and H. Q. Ye: Acta Mater., 2014, vol. 69, pp. 236–245.
2. A. Hosoi, T. Nagahama and Y. Ju: Mater. Sci. Eng. A., 2012, vol. 533, pp. 38–42.
3. K. W. Gao, L. J. Qiao and W. Y. Chu: Scr Mater., 2001, vol. 44, pp. 1055–1059.
4. N. Shinya, J. Kyono and B. Laha: J. Intell. Mater. Syst. Struct., 2006, vol. 17, pp. 1127–1133.
J. M. Lucci, R. Amano, P. K. Rohatgi and B. Schulz: Proceedings of ASME Turbo ExpoENIC2008 (ASME: Florida, 2008), pp. 79–88.
6. S. van der Zwaag, N. H. van Dijk, H. M. Jonkers, S. D. Mookhoek and W. G. Sloof: Phil. Trans. R. Soc. A, 2009, vol. 367, pp. 1689–1704.
7. M. Song, K. Du, Z. Y. Huang, H. Huang, Z. R. Nie and H. Q. Ye: Acta Mater., 2014, vol. 81, pp. 409–419.
8. J. J. Liu, H. Huang, R. Liu, L. Rong, W. Wang and Z. R. Nie: Mater. Sci. Forum., 2014, vol. 817, pp. 698–705.
9. P. Karen, A. Kjekshus, Q. Huang and V.L. Karen: J. Alloys. Compd., 1999, vol. 282, pp. 72–75.
10. R. A. Johnson and Nghi Q. Lam: Phys. Rev. B., 1977, vol. 15, pp. 1794–1800.
11. I. Higashi, N. Shiotani, M. Uda, T. Mizoguchi and H. Katoh: J. Solid State Chem., 1981, vol. 36, pp. 225–233.
12. J. Sun: J. Mater. Eng. Perform., 2002, vol. 11, pp. 322–331.
13. A. Janotti, M. Krčmar, C. L. Fu and R. C. Reed: Phys. Rev. Lett., 2004, vol. 92, p. 085901.
14. W. B. Beeré and G. W. Greenwood: Meter. Sci., 1971, vol. 5, pp. 107–113.
15. T. D. Xu: Philos. Mag., 2003, vol. 83, pp. 889–899.
16. R. P. Smith: Acta. Metall., 1953, vol. 1, pp. 578–587.
17. T. B. Massalski: Binary alloy phase diagram, ASM International, Metals Park, OH, 1991.
18. C. Lei and C. Molinari: J. Mater. Sci., 1984, vol. 19, pp. 2336–2352.
T. Fujita, Z. Horita and T. G. Langdon: Philos. Mag. A., 2002, vol. 82, pp. 2249–2262.
C. Barouh, T. Schuler, C.-C. Fu, T. Jourdan: Phys. Rev. B., 2015, vol. 92.
21. A. Mazilkin, B. Straumal, E. Rabkin, B. Baretzky, S. Enders, S. Protasova, O. Kogtenkova and R. Valiev: Acta Mater., 2006, vol. 54, pp. 3933–3939.
22. B. B. Straumal, B. Baretzky, A. A. Mazilkin, F. Phillipp, O. A. Kogtenkova, M. N. Volkov and R. Z. Valiev: Acta Mater., 2004, vol. 52, pp. 4469–4478.
23. R. M. Bradley and J. M. E. Harper: J. Vac. Sci. Technol. A., 1988, vol. 6, pp. 2390–2395.
24. S. G. Mayr and R. S. Averback: Phys. Rev. Lett., 2001, vol. 87, p. 196106.
T. M. Mayer, E. Chason, A. J. Howard: J. Appl. Phys., 1994, vol. 76, pp. 1633–1643.
26. C. Herring: The Physics of Powder Metallurgy, p. 143, McGraw-Hill Inc., New York, 1951.
27. J. Sun, L. B. He, Y. Lo, T. Xu, H. C. Bi, L. T. Sun, Z. Zhang, S. X. Mao and J. Li: Nat. Mater., 2014, vol. 13, pp. 1007–1012.
28. L. Tian, J. Li, J. Sun, E. Ma and Z. W. Shan: Sci. Rep., 2013, vol. 3, p. 2113.
29. D. Lynn Johnson: J. Appl. Phys., 1968, vol. 40, pp. 192–200.
J. R. Black: Proc. 6th Ann Int Rel Phys Symp., 1967, pp. 148–159.
31. L. E. Murr: Interfacial phenomena in Metals and Alloys, p. 292, Addison-Wesley Publishing Co., Massachusetts, 1975.
32. A. K. Green and E. Bauer: Surf. Sci., 1978, vol. 74, pp. 676–681.
A. Ismail, P. Hofmann, E. W. Plummer, C. Bungaro, W. Kress: Phys. Rev. B., 2000, vol. 62, pp. 17012–17019.
34. H. Wawra and Z. Metallkd: Surf. Sci., 1975, vol. 66, pp. 395–401.
35. W.R. Tysona and W.A. Miller: Surf. Sci., 1977, vol. 62, pp. 267–276.
36. H. J. Frost, C. V. Thompson and D. T. Walton: Acta. Metall., 1990, vol. 38, pp. 1455–1462.
37. S. J. Rothman, N. L. Peterson, L. J. Nowicki and L. C. Robinson: Phys. Stat. Sol. B., 1974, vol. 63, pp. K29–K33.
38. S. Fujikawa and K. Hirano: Trans. Jpn. Inst. Met., 1976, vol. 17, pp. 809–818.
39. M. Beyeler and Y. Adda: J. Phys., 1968, vol. 29, pp. 345–352.
40. T.E. Volin and R.W. Balluffi: Phys. Status Sollidi. 1986, vol. 25, pp. 163–173.
41. R. N. Lumley and G. B. Schaffer: Scr. Mater., 2006, vol. 55, pp. 207–210.
42. T. A. Schaedler, A. J. Jacobsen, A. Torrents, A. E. Sorensen, J. Lian, J. R. Greer, L. Valdevit and W. B. Carter: Sci., 2011, vol. 334, pp. 962–965.
X. Zheng, H. Lee, T. H. Weisgraber, M. Shusteff, J. DeOtte, E. B. Duoss, J. D. Kuntz, M. M. Biener, Q. Ge, J. A. Jackson, S. O. Kucheyev, N. X. Fang and C. M. Spadaccini: Sci., 2014, vol. 344, pp. 1373–1377.
R. B. Dunbar, H. C. Hesse, D. S. Lembke and L. Schmidt-Mende: Phys. Rev. B., 2012, vol. 85, p. 035301.
45. A. Torrents, T. A. Schaedler, A. J. Jacobsen, W. B. Carter and L. Valdevit: Acta Mater., 2012, vol. 60, pp. 3511–3523.
Acknowledgments
The authors thank Y.M. Wang and Z.Y. Sun for stimulating discussion and X.L. Liu, X. Lei for providing Al-Mg-Er and Al-Mg-Zn-Er alloy samples. The authors also acknowledge the financial support from the Special Funds for the Major State Basic Research Projects of China (Grant No. 2012CB619503) and the Natural Sciences Foundation of China (Grant Nos. 51390473, 51521091, 11332010).
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Song, M., Du, K., Wang, C. et al. Geometric and Chemical Composition Effects on Healing Kinetics of Voids in Mg-bearing Al Alloys. Metall Mater Trans A 47, 2410–2420 (2016). https://doi.org/10.1007/s11661-016-3380-3
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DOI: https://doi.org/10.1007/s11661-016-3380-3