Abstract
The recovery of deformed beryllium was studied with mechanical testing and in situ neutron diffraction measurements. The initial texture of the material and the deformation rate were manipulated to produce four distinct deformation microstructures. The dislocation density was determined from line profile analysis of the neutron diffraction data collected as a function of temperature during annealing to a maximum homologous temperature of 0.53 following deformation. Mechanical testing was completed after the in situ annealing to determine the extent of the recovery of the flow stress. Both the dislocation density and flow stress recovered significantly by a relatively low homologous temperature of 0.3. A comparison with model calculations using a dislocation-based hardening law indicates that it is forest-type dislocations that annihilate during the relatively low temperature anneal; the dislocation substructure was stable at these temperatures. Finally, the motion of the dislocations during annealing prevented the development of intergranular thermal stresses due to the crystallographically anisotropic thermal expansion of beryllium.
Similar content being viewed by others
References
S. R. Agnew, J. A. Horton, T. M. Lillo, D. W. Brown. Scripta Mat. 2004;50:377-381.
S. R. Agnew, D. W. Brown, C. N. Tome. Acta. Mat. 2006;54:4841-4852.
D. Yin, J. Wang, X. Zhu, R. Wang, and X. Zhao: in Magnesium Technology, R. Beals, A. Luo, N. Neelameggham, and M. Pekguleryuz, eds., 2007, pp. 177–83.
E. W. Kelly, W. F. Hosford. Trans. Met. Soc. AIME 1968;242:654-660.
L. Capolungo, I. J. Beyerlein, C. N. Tome. Scripta Mat. 2009;60:32-35.
L. Capolungo, I. J. Beyerlein, G. Kaschner, C. N. Tome. Mat. Sci. Eng. A 2009;513-514:42-51.
D. L. Yin, J. T. Wang, J. Q. Liu, X. Zhao. J. Alloy Compd. 2009;478:789-795.
F. E. Hauser, P. R. Landon, J. E. Dorn. Trans. AIMME 1956;206:589-593.
S. G. Song, G. T. Gray, III: Metall. Mater. Trans. A, 1995, vol. 26A, pp. 2665-2675.
D. W. Brown, S. R. Agnew, S. P. Abeln, W. R. Blumenthal, M. A. M Bourke, M. C. Mataya, C. N. Tome, S. C. Vogel. Mater. Sci. Forum 2005;495-497:1037-1042.
I. J. Beyerlein, C. N. Tome. Int. J. Plas. 2008;24:867-895.
D. Webster: in Beryllium Science and Technology, D. Webster, G.J. London, eds., Plenum Press, New York, 1979, vol. 1. pp. 207–34.
T. A. Sisneros, D. W. Brown, B. Clausen, D. C. Donati, S. Kabra, W. R. Blumenthal, S. C. Vogel. Mat. Sci. Eng. A 2010;527:5181-5188.
D. W. Brown, I. J. Beyerlein, T. A. Sisneros, B. Clausen, C. N. Tome. Int. J. Plas. 2012;29:120-135.
D.W. Brown, T.A. Sisneros, B. Clausen, S. Abeln, M.A.M Bourke, B.G. Smith, M.L. Steinzig, C.N. Tome, and S.C. Vogel: Acta Mater, 2009, vol. 57, pp. 972-979.
D.W. Brown, R. Varma, M.A.M Bourke, T. Ely, T.M. Holden, and S. Spooner: Ecrs 6: Proc. 6th Eur. Conf. Residual Stresses, 2002, vol. 404-4, pp. 741–46.
D. Webster, D. D. Crooks. Met. Trans. A 1976;7:1307-1315.
D. Webster, D. D. Crooks. Met. Trans. A 1975;6:2049-2054.
M. Scibetta, A. Pellettieri, L. Sannen. J Nuc Matl 2007;367B:1063.
D.W. Brown, S.P. Abeln, W.R. Blumenthal, M.A.M Bourke, M.C. Mataya, and C.N. Tome: Metall. Mater. Trans. A, 2005, vol. 36A, pp. 929-939.
G. Ribarik, T. Ungar. Mat. Sci. Eng. A 2010;528:112-121.
G. Ribarik, J. Gubicza, T. Ungar. Mat. Sci. Eng. A 2004;387:343-347.
T. Ungar, A. Borbely. App. Phys. Lett. 1996;69:3173-3175.
L. Balogh, G. Tichy, T. Ungar. J. App. Crys. 2009;42:580-591.
P. Scardi, M. Leoni. Acta Crystallographica A 2002;58:190-200.
K. Máthis, K. Nyilas, A. Axt, I. Dragomir-Cernatescu, T. Ungár, P. Lukac. Acta. Mat. 2004;52:2889-2894.
L. Balogh, D. Brown, P. Mosbrucker, F. Long, M. Daymond. Acta. Mat. 2012;60:5567-5577.
M.A.M Bourke, D.C. Dunand, and E. Ustundag: Appl. Phys. A, 2002, vol. A74, pp. S1707–09.
W.R. Blumenthal, R.W. Carpenter, G.T. Gray III, D.D. Cannon, and S.P. Abeln: 10th Am. Phys. Soc. Top. Conf., 1997, vol. 429, pp. 411–14.
http://www.asscientific.com/products/furnaces/index.html. Accessed 27 Aug 2013.
S. C. Vogel, C. Hartig, L. Lutterotti, R. B. Von Dreele, H. R. Wenk, D. J. Williams. Powder Diffr 2004;19:65-68.
G. Muhrer, E. J. Pitcher, G. J. Russell, T. Ino, M. Ooi, Y. Kiyanagi. Nucl. Instrum. Methods Phys. Res., Sect. A 2004;527:531-542.
H. Wenk, L. Lutterotti, S. Vogel. Nucl. Instrum. Methods Phys. Res., Sect. A 2003;515:575-588.
H. Reiche, S. C. Vogel. Rev. Sci. Instrum. 2010;81:93302-93306.
T. Proffen, T. Egami, S. J. L. Billinge, A. K. Cheetham, D. Louca, J. B. Parise. App. Phys. A 2002;74:s163-s165.
T. Ungar, J. Gubicza, G. Ribarik, A. Borbely. J. App. Crys. 2001;34:298-310.
M. Wilkens. Phys. Status Solidi A 1970;2:359-370370.
B. Joni, T. Al-Samman, S. G. Chowdhury, G. Csiszar, and T. Ungar. J. Appl. Crystallogr. 2013;46:55–62.
R. A. Lebensohn, C. N. Tome. Acta Metall Mater 1993;41:2611-2624.
G. Proust, C. N. Tome, G. C. Kaschner. Acta. Mat. 2007;55:2137-2148.
R. Madec, B. Devincre, L. Kubin. Phys. Rev. Lett. 2002;89:255508.
S. J. Basinski, Z. S. Basinski. Plastic deformation and work hardening: North-Holland, 1979.
I.J. Beyerlein, L. Capolungo, G. Yapici, C.N. Tome, and I. Karaman: in Ductility of Bulk Nanostructured Materials, vol. 633–634, Y. Zhao, and X. Liao, eds., 2010, pp. 483–510.
A. Rollett, F. J. Humphreys. Recrystallization and Related Annealing Phenomena: Elsevier Science, 2004.
G. K. Williamson, W. H. Hall. Acta Metall Mater 1953;1:22-31.
Y. S. Touloukian, R. K. Kirby, R. E. Taylor, P. D. Desai. Thermal Expansion: Metallic Elements and Alloys. New York: Plenum Publishing Company, 1975.
M. A. Vicente Alvarez, M. Marchena, T. Perez. Metall. Mater. Trans. A 2008;39A:3283.
Author information
Authors and Affiliations
Corresponding author
Additional information
Manuscript submitted January 28, 2013.
Rights and permissions
About this article
Cite this article
Brown, D.W., Clausen, B., Sisneros, T.A. et al. In Situ Neutron Diffraction Measurements During Annealing of Deformed Beryllium With Differing Initial Textures. Metall Mater Trans A 44, 5665–5675 (2013). https://doi.org/10.1007/s11661-013-1932-3
Published:
Issue Date:
DOI: https://doi.org/10.1007/s11661-013-1932-3