Abstract
Three problems in precipitation at interphase boundaries are examined. 1) The classu argument as to the particular phase in which such a precipitate nucleates is shown to be irrelevant; except in a special situation, the critical nucleus must normally penetrate both phases forming the interphase boundary. 2) The relative penetrations into the two phases achieved during growth can be very different than those expected during nucleation; hence, deductions about the nucleation process based upon observations on growth morphologies can be quite misleading. 3) The observations of Honeycombe and others that the nucleation of carbides at austenite: ferrite boundaries occurs predominantly at the low energy, immobile broad faces of ledges rather than at the higher energy, mobile risers of ledges are accounted for theoretically on the basis of the high velocities of the risers preventing nucleation. Example calculations on a Ti-Ni alloy indicate that precipitation at the risers of ledges may become possible in substitutional systems, but only at lower homologous temperatures, and if the migration of these boundaries is still controlled by volume diffusion while nucleation is controlled by interfacial diffusion.
Article PDF
Similar content being viewed by others
Avoid common mistakes on your manuscript.
References
R. F. Hehemann:Phase Transformations, p. 397, ASM, Metals Park, OH, 1970.
R. F. Hehemann, K. R. Kinsman, and H. I. Aaronson:Met. Trans., 1972, vol. 3, p. 1077.
C. W. Spencer and D. J. Mack:Decomposition of Austenite by Diffusional Processes, p. 549, Interscience, NY, 1962.
R. B. Nicholson:Phase Transformations, p. 269, ASM, Metals Park, OH, 1970.
K. C. Russell and H. I. Aaronson:J. Mater. Sci., 1975, vol. 10, p. 1991.
J. W. Gibbs:On the Equilibrium of Heterogeneous Substances, Collected Works, 1928, vol. I, Longsmans, Green and Co., NY.
W. C. Johnson, C. L. White, P. E. Marth, P. K. Ruf, S. M. Tuominen, K. D. Wade, K. C. Russell, and H. I. Aaronson:Met. Trans. A, 1975, vol. 6A, p. 911.
P. E. Marth, H. I. Aaronson, G. W. Lorimer, T. L. Bartel, and K. C. Russell:Met. Trans. A, 1976, vol. 7A, p. 1519.
H. I. Aaronson, W. B. Triplett, and G. M. Andes:Trans. AIME, 1957, vol. 209, p. 1227.
G. W. Franti, J. C. Williams, and H. I. Aaronson: Michigan Technological University, unpublished research, 1976.
R. W. K. Honeycombe:Met. Trans. A, 1976, vol. 7A, p. 915.
C. S. Smith:Trans. ATME, 1948, vol. 175, p. 15.
N. A. Gjostein, H. A. Domian, H. I. Aaronson, and E. Eichen:Acta Met., 1966, vol. 14, p. 1637.
J. K. Lee, D. M. Barnett, and H. I. Aaronson:Met. Trans. A, 1977, vol. 8A, p. 963.
H. I. Aaronson and H. B. Aaron:Met. Trans., 1972, vol. 3, p. 2743.
A. T. Davenport and R. W. K. Honeycombe:Proc. Roy. Soc., 1971, vol. 322, p. 191.
V. K. Heikinnen:Acta Met., 1973, vol. 21, p. 709; Scandin. J. Met., 1974, vol. 3, p. 41.
J. K. Lee and H. I. Aaronson:Acta Met., 1975, vol. 23, p. 809.
C. Atkinson, K. R. Kinsman, H. B. Aaron, and H. I. Aaronson:Met. Trans., 1973, vol. 4, p. 783.
C. Zener:J. Appl Phys., 1949, vol. 20, p. 950.
M. P. Puls and J. S. Kirkaldy:Met. Trans., 1972, vol. 3, p. 2777.
H. B. Aaron and H. I. Aaronson:Acta Met., 1968, vol. 16, p. 789.
J. Goldman, H. I. Aaronson, and H. B. Aaron:Met. Trans., 1970, vol. 1, p. 1805.
L. Kaufman, S. V. Radcliffe, and M. Cohen:Decomposition of Austenite by Diffusional Processes, p. 313, Interscience, NY, 1962.
C. A. Wert:Phys. Rev., 1950, vol. 79, p. 601.
G. J. Shiflet, H. I. Aaronson, and J. R. Bradley: Michigan Technological University, unpublished research, 1976.
C. Zener:Trans. AIME, 1946, vol. 167, p. 550.
M. Hansen:Constitution of Binary Alloys, McGraw-Hill, NY, 1958.
D. Graham:Diffusion in Body Centered Cubic Metals, p. 27, ASM, Metals Park, OH, 1965.
G. M. Hood and R. J. Schultz:Phil Mag., 1971, vol. 26, p. 329.
L. Kaufman and H. Bernstein:Computer Calculation of Phase Diagrams, p. 183, Academic Press, NY, 1970
K. Campbell and R. W. K. Honeycombe:Met. Sci. J., 1974, vol. 8, p. 197.
A. T. Davenport, F. G. Berry, and R. W. K. Honeycombe:Met. Sci. J., 1968, vol. 2, p. 104.
F. G. Berry and R. W. K. Honeycombe:Met. Trans., 1970, vol. 1, p. 3279.
H. I. Aaronson, C. Laird, and K. R. Kinsman:Phase Transformations, p. 313,ASM, Metals Park, OH, 1970.
H. I. Aaronson:J. Microscopy, 1974, vol. 102, p. 275.
J. Feder, K. C. Russell, J. Lothe, and G. M. Pound:Adv. Phys., 1966, vol. 15, p. 111.
S. K. Bhattacharyya, J. H. Perepezko, and T. B. Massalski:Acta Met., 1974, vol. 22, p. 879.
W. B. Hillig:Symposium on Nucleation and Crystallization in Glasses and Melts, p. 77, Amer. Ceram. Soc., Columbus, OH, 1962.
G. J. Jones and R. K. Trivedi:J. Appl. Phys., 1971, vol. 42, p. 4299.
H. I. Aaronson:Decomposition of Austenite by Diffusional Processes, p. 387,Interscience, NY, 1962.
G. Vander Velde, J. A. Velasco, K. C. Russell, and H. I. Aaronson:Met. Trans. A, 1976, vol. 7A, p. 1472.
K. C. Russell:Phase Transformations, p. 219, ASM, Metals Park, OH, 1970.
K. C. Russell:Acta Met., 1969, vol. 17, p. 1123.
A. D. Brailsford and H. B. Aaron:J. Appl Phys., 1968, vol. 40, p. 1702.
A. Bondy, P. Regnier, and V. Levy:Scr. Met., 1971, vol. 5, p. 345.
H. B. Aaron and F. Weinberg:Acta Met., 1972, vol. 20, p. 339.
R. B. McLellan and W. W. Dunn:J. Phys. Chem. Solids, 1969, vol. 30, p. 2631.
W. W. Dunn and R. B. McLellan:Met. Trans., 1971, vol. 2, p. 1079.
R. B. McLellan and W. W. Dunn:Scr Met., 1970, vol. 4, p. 321.
W. F. Lange III: Michigan Technological University, unpublished research,1976.
M. R. Plichla: Michigan Technological University, unpublished research, 1976.
K. R. Kinsman and H. I. Aaronson: Ford Motor Co., unpublished research, 1967.
K. R. Kinsman, E. Eichen, and H. I. Aaronson:Met. Trans. A, 1975, vol. 6A, p. 303.
M. G. Hall, K. R. Kinsman, and H. I. Aaronson:Met. Trans., 1972, vol. 3, p. 1320.
K. R. Kinsman and H. I. Aaronson:Transformation and Hardenability in Steels, p. 39, Climax Molybdenum Co., Ann Arbor, MI, 1967.
P. G. Boswell, K. R. Kinsman, and H. I. Aaronson: Ford Motor Co., unpublished research, 1968.
H. I. Aaronson, H. A. Domian, and G. M. Pound:Trans. TMS-AIME, 1966, vol. 236, p. 768.
Author information
Authors and Affiliations
Rights and permissions
About this article
Cite this article
Aaronson, H.I., Plichta, M.R., Franti, G.W. et al. Precipitation at interphase boundaries. Metall Trans A 9, 363–371 (1978). https://doi.org/10.1007/BF02646386
Received:
Issue Date:
DOI: https://doi.org/10.1007/BF02646386