Abstract
Discontinuous precipitation (DP) is associated with grain boundary migration in the wake of which alternate plates of the precipitate and the depleted matrix form. Some copper base alloys show DP while others do not. In this paper the misfit strain parameter, η, has been calculated and predicted that if 100 η > ± 0·1, DP is observed. This criterion points to diffusional coherency strain theory to be the operative mechanism for DP.
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References
Chung V H, Shin M C and Yoon D N 1992 Acta Metall. 40 2177
Gust W 1970 Discontinuous precipitation in binary metallic systems (Germany: Springer Verlag)
Kashyap K T, Ramachandra C, Sujatha M and Chatterji B 2000a Bull. Mater. Sci. 23 39
Kashyap K T, Ramachandra C, Bhat V and Chatterji B 2000b Bull. Mater. Sci. 23 295
Pearson’s Handbook 1958 Handbook of lattice spacings and structures of metals and alloys 2
Yoon D N and Hupman W J 1981 Acta Metall. 27 973
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Kashyap, K.T. Discontinuous precipitation in copper base alloys. Bull Mater Sci 32, 413–414 (2009). https://doi.org/10.1007/s12034-009-0060-6
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DOI: https://doi.org/10.1007/s12034-009-0060-6