Abstract
The morphology, crystallography, and composition of the phases present in as-cast nickel-aluminum bronze of nominal composition copper-10 wt pct aluminum-5 wt pct nickel-5 wt pct iron have been investigated using optical, electron optical, and microprobe analysis techniques. The as-cast microstructure consists of copper-rich α, martensitic β, and κ-phases based on Fe3Al and NiAl. The κz precipitates have a dendritic morphology and are cored; the composition ranges from iron-rich solid solution to Fe3Al. The κII and κiv precipitates have, respectively, a dendritic and an equiaxed/dendritic morphology, and are based on Fe3Al, while κIII is a eutectoidal decomposition product of lamellar or globular morphology based on NiAl. The κI, κII, and κIII precipitates have the Kurdjumov-Sachs orientation relationship with α matrix. Small κIV precipitates exhibit the Nishiyama-Wasserman orientation relationship with the α matrix, while large κiv precipitates have an orientation relationship which lies between Kurdjumov-Sachs and Nishiyama-Wasserman.
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M. Cook, W. P. Fentiman, and E. Davis:J. Inst. Metals, 1952, vol. 80, pp. 419–29.
P. Weill-Couly and D. Arnaud:Fonderie, 1973, vol. 28, no. 322, pp. 123–35.
E. A. Culpan and G. Rose:J. Mater. Sci., 1978, vol. 13, pp. 1647–56.
D. M. Lloyd, G. W. Lorimer, and N. Ridley:Met. Technology, 1980, vol. 7, pp. 114–19.
G. Cliff and G.W. Lorimer:J. Microscopy, 1975, vol. 103, pp. 203–07.
J. C. Rowlands and T. R. H. M. Brown: Proc. of the 4th International Congress on Marine Corrosion and Fouling, Entibes, Juan-les-Pins, June 1976, Centre de Recherches et d'Etudes Océanograthique, Boulogne, France.
H. Warlimont and L. Delaey:Prog. Mater. Sci., 1974, vol. 18, pp. 25–32 and 41–46.
R. Thomson and J. O. Edwards: Report MRP/PMRL/76-27(J), Part I, CANMET, Ottawa, Ontario, Canada.
C. S. Barrett and T. B. Massalski:Structure of Metals, Pergamon Press, 1980, p. 275.
A. J. Bradley, W. L. Bragg, and C. Sykes:J. Iron Steel Inst., 1940, vol. 141, pp. 99–109.
R. P. Elliott:Constitution of Binary Alloys, First Supplement, McGraw-Hill, 1965, p. 36.
M. Hansen:Constitution of Binary Alloys, McGraw Hill, 1958, p. 90.
G. Lutjering and H. Warlimont:Acta Met., 1964, vol. 12, pp. 1460–61.
R. Thomson and J. O. Edwards: Report MRP/PMRL/76-28(J), Part II, CANMET, Ottawa, Ontario, Canada.
F. Hasan, G. W. Lorimer, and N. Ridley: University of Manchester, unpublished research, 1982.
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Hasan, F., Jahanafrooz, A., Lorimer, G.W. et al. The morphology, crystallography, and chemistry of phases in as-cast nickel-aluminum bronze. Metall Trans A 13, 1337–1345 (1982). https://doi.org/10.1007/BF02642870
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DOI: https://doi.org/10.1007/BF02642870