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Toward Optimization of the Grain Boundary Character Distribution in Copper by Strain Annealing

  • Wayne E. King (a1) and Adam J. Schwartz (a1)

Abstract

We have used a two-step (low and high temperature) strain-annealing process to evolve the grain boundary character distribution (GBCD) in fully recrystallized oxygen-free electronic (OFE) Cu bar that was forged and rolled. Orientation imaging microscopy (OIM)[1–4] has been used to characterize the GBCD after each step in the processing. The fraction of special grain boundaries, “special fraction,” was ∼70% in the starting recrystallized material. Three different processing conditions were employed: high, moderate, and low temperature. The high-temperature process resulted in a reduction in the fraction of special grain boundaries while both of the lower temperature processes resulted in an increase in special fraction up to 85%. Further, the lower temperature processes resulted in average deviation angles from exact misorientation, for special boundaries, that were significantly smaller than observed from the high temperature process. Results indicate the importance of the low temperature part of the two-step strain-annealing process in preparing the microstructure for the higher temperature anneal and commensurate increase in the special fraction.

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1. Mason, T. A. and Adams, B. L., JOM-Journal of the Minerals Metals & Materials Society, 46, p. 4345 (1994)
2. Adams, B. L., Materials Science and Engineering A-Structural Materials Properties Micro-structure and Processing, 166, p. 5966 (1993)
3. Adams, B. L., Wright, S. I. and Kunze, K., Metallurgical Transactions A-Physical Metallurgy and Materials Science, 24, p. 819831 (1993)
4. Doherty, R. D., Samajdar, I. and Kunze, K., Scripta Metallurgica et Materialia, 27, p. 14591464(1992)
5. Lassila, D. H., private communication.
6. Lassila, D. H., Baker, E. L., Chan, D. K., King, W. E. and Schwartz, A. J., in 16th International Symposium on Ballistics, (in press, 1996)
7. Aust, K. T., Erb, U. and Palumbo, G., Materials Science and Engineering A-Structural Materials Properties Microstructure and Processing, 176, p. 329334 (1994)
8. Avramoviccingara, G., Aust, K. T., Perovic, D. D., Palumbo, G. and Mcqueen, H. J., Canadian Metallurgical Quarterly, 34, p. 265273 (1995)
9. Cheung, C., Erb, U. and Palumbo, G., Materials Science and Engineering A-Structural Materials Properties Microstructure and Processing, 185, p. 3943 (1994)
10. Lim, L. C. and Watanabe, T., Acta Metallurgica et Materialia, 38, p. 25072516 (1990)
11. Palumbo, G., King, P. J., Aust, K. T., Erb, U. and Lichtenberger, P. C., Scripta Metallurgica et Materialia, 25, p. 17751780 (1991)
12. Palumbo, G. and Aust, K. T., Canadian Metallurgical Quarterly, 34, p. 165173 (1995)
13. Watanabe, T., Textures and Microstructures, 14, p. 739744 (1991)
14. Watanabe, T., Scripta Metallurgica et Materialia, 27, p. 14971502 (1992)
15. Thompson, C. B. and Randle, V., in 1996 MSA Annual Meeting, edited by Bailey, G. W., Corbett, J. M., Dimlich, R. V. W., Michael, J. R. and Zaluzec, N. J. (San Francisco Press, Inc. 1996), p. 356357.
16. Watanabe, T., Materials Science and Engineering A-Structural Materials Properties Micro-structure and Processing, 166, p. 1128 (1993)
17. Watanabe, T., Textures and Microstructures, 20, p. 195216 (1993)
18. Orientation Imaging Microscopy Software Version 2.0 User Manual, TSL, Inc., Provo, UT, 1996, pp. 35.
19. Brandon, D. G., Acta Metall, 14, p. 1479 (1966)
20. Adams, B. L., Zhao, J. and Grimmer, H., Acta Crystallographica Section A-Foundations of Crystallography, 46, p. 620622 (1990)
21. Randle, V. and Ralph, B., Mat. Res. Soc. Symp. Proc, 122, p. 419424 (1988)

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