Ternary diffusion in the Cu-Ni-Zn system was investigated at 775 °C for the development of zero-flux planes (ZFP) and flux reversals of the individual components. ZFP’s, where the interdiffusion flux of either Cu, Ni, or Zn goes to zero, were identified in several series of single phase and multiphase solid-solid diffusion couples assembled with a (fcc),β (bcc), or γ (cubic) Cu-Ni-Zn alloys and characterized by terminal alloys of similar thermodynamic activity for one of the components. Profiles of interdiffusion fluxes were directly determined from concentration profiles. The diffusion path for a single phase couple with a ZFP was experimentally found to be invariant with diffusion time. The locations of ZFP’s within the diffusion zone of a couple corresponded to sections where the activity of a component was the same as its activity in either of the terminal alloys of the couple. Couples developing ZFP’s showed regions where a component diffused up its own activity gradient. The diffusional interactions among the components described by the ratios of cross to main ternary interdiffusion coefficients were determined directly from the slopes of the diffusion paths at various ZFP compositions. In several multiphase couples, discontinuous flux reversals for the components were also identified at theβ/a and γ/β interfaces. A discontinuous flux reversal for a component was observed at a planar interface, when the activity of the component at the interface corresponded to its activity in one of the terminal alloys of the couple.
This is a preview of subscription content, access via your institution.
Buy single article
Instant access to the full article PDF.
Tax calculation will be finalised during checkout.
Subscribe to journal
Immediate online access to all issues from 2019. Subscription will auto renew annually.
Tax calculation will be finalised during checkout.
M. A. Dayananda and C. W. Kim:Metall. Trans. A, 1979, vol. 10A, p. 1333.
C. W. Kim and M. A. Dayananda:Metall. Trans. A, 1983, vol. 14A, p. 857.
M. A. Dayananda:Metall. Trans. A, 1983, vol. 14A, p. 1851.
M. A. Dayananda and C. W. Kim:ScriptaMet., 1982, vol. 16, p. 815.
K.J. Anusavice and R.T. DeHoff:Metall. Trans., 1972, vol. 3, p. 1279.
R.D. Sasson, Jr. and M. A. Dayananda:Metall. Trans. A, 1977, vol. 8A, p. 1849.
C.C. Wan: Ph.D. Thesis, University of Florida, Gainesville, FL, 1973.
A.G. Guy, H. Fuchtig, and R.H. Buck:Trans. TMS-AIME, 1965, vol. 233, p. 1178.
C. W. Tylor, Jr., M. A. Dayananda, and R. E. Grace:Metall. Trans., 1970, vol. 1, p. 127.
D. E. Coates and J. S. Kirdaldy:Metall. Trans., 1971, vol. 2, p. 3467.
R. D. Ssson, Jr. and M. A. Dayananda:Metall. Trans., 1972, vol. 3, p. 647.
R.D. Sisson, Jr.: Ph.D. Thesis, 1975, Purdue University, West Lafayette, IN.
L. E. Wirtz and M. A. Dayananda:Metall. Trans. A, 1977, vol. 8A, p. 567.
ASM Metals Handbook, ASM Publication, Metals Park, OH, 1970, vol. 8, p. 427.
M. Hansen and K. Anderko:Constitution of Binary Alloys, McGraw-Hill Publishing Co., New York, NY, 1958, p. 1059.
W. W. Liang, Y. A. Chang, and S. Lau:Acta Metall., 1973, vol. 21, p. 629.
R. F. Mehl and C. F. Lutz:Trans. TMS-AIME, 1961, vol. 221, p. 561.
J. O. Betterton and W. Hume-Rothery:J. Inst. Metals, 1951, vol. 80, p. 459.
L. Elford, F. Müller, and O. Kubaschewski:Ber. Bunsengesellschaft, 1969, vol. 73, p. 601.
R. A. Rapp and F. Maak:Acta Metall., 1962, vol. 10, p. 63.
B. A. Hargreaves:J. Inst. Metals, 1939, vol. 64, p. 115.
V. A. Schneider and H. Schmid:Z. Electrochem., 1942, vol. 48, p. 627.
B.B. Argent and D.W. Wakeman:Trans. Faraday Soc, 1958, vol. 59, p. 799.
V. Campos and T. R. A. Davies: Colorado School of Mines, Golden, CO, unpublished research, 1974.
E.V. Clougherty and L. Kaufman:Acta Metall., 1963, vol. 11, p. 1043.
T. G. Chart, T. K. Critchley, and R. Williams:J. Inst. Metals, 1968, vol. 96, p. 224.
W.W. Liang, J.W. Frank, and Y.A. Chang:Metall. Trans., 1972, vol. 3, p. 2555.
G.A. Chadwick and B.B. Argent:Trans. Faraday Soc, 1961, vol. 57, p. 2138.
L. S. Darken:J. Am. Chem. Soc, 1950, vol. 72, p. 2909.
R. Hultgren, P. D. Desai, D. T. Hawkins, M. Gleiser, and K. K. Kelley:Selected Values of Thermodynamic Properties of Binary Alloys, ASM, 1973, p. 1249.
G.A. Chadwick and B.B. Argent:J. Inst. Metals, 1959, vol. 88, p. 318.
E. A. Owens and L. Pickup:Proc. Royal Soc. A, 1934, vol. 145, p. 358.
K. W. Andrews and W. Hume-Rothery:Proc. Royal Soc. A, 1941, vol. 178, p. 464.
W. B. Pearson:A Handbook of Lattice Spacings and Structures of Metals and Alloys, Met. Phys. and Phys. Met., 1958, vol. 4, p. 620.
F. A. Shunk:Constitution of Binary Alloys, Second Supplement, McGraw-Hill Publishing Co., New York, NY, 1969.
G. L. Kehl:Principles of Métallo graphic Laboratory Practice, McGraw-Hill Publishing Co., New York, NY, 1949, p. 420.
L. E. Wirtz: M.S. Dissertation, School of Materials Engineering, Purdue University, W. Lafayette, IN, 1975.
M.A. Dayananda and R.E. Grace:Trans. TMS-AIME, 1965, vol. 233, p. 1287.
P.T. Carlson, M.A. Dayananda, and R.E. Grace:Metall. Trans., 1972, vol. 3, p. 819.
L. Onsager:Ann. N.Y. Acad. Sci., 1945, vol. 46, p. 241.
About this article
Cite this article
Kim, C.W., Dayananda, M.A. Zero-flux planes and flux reversals in the Cu- Ni- Zn System at 775 °C. Metall Mater Trans A 15, 649–659 (1984). https://doi.org/10.1007/BF02644196
- Metallurgical Transaction
- Diffusion Couple
- Diffusion Path
- Diffusion Zone
- Interdiffusion Coefficient