Abstract
Transformation-induced microstructures in Co-Fe alloys have been evaluated by trans-mission electron microscopy. It appears that macroscopic HCP regions evolve by the ag-glomeration of overlapping faults and four-or six-layer HCP nuclei located at different levels within a deformed region. The observed debris within well-developed HCP platelets and the presence of twins in transformed material are consistent with the preceding con-cept. Furthermore, based on these results it may be argued convincingly that the role of stair rod-cross slip in the transformation is very minor.
Similar content being viewed by others
References
J. W. Christian:Proc. Roy. Soc, 1951, vol. A206, pp. 51–64.
Z. S. Basinski and J. W. Christian:Phil Mag., 1953, vol. 44, pp. 791–92.
B. A. Bilby:Phil Mag., 1953, vol. 44, pp. 782–85.
A. Seeger:Z. Metallkund, 1953, vol. 44, pp. 247–53.
A. Seeger:Z. Metallkund, 1953, vol. 47, pp. 653–60.
W. Bollman.Acta Met, 1961, vol. 9, pp. 972–75.
J. P. Hirth:Fundamental Aspects of Dislocation Theory, J. A. Simmons, R. de Wit, and R. Bullough, eds., pp. 547–50, National Bureau of Standards, Washington, D.C., 1970.
E. de Lamotte and C. Altstetter:Trans. TMS-AIME, 1969, vol. 245, pp. 651–59.
H. Fujita and S. Ueda:Acta Met., 1972, vol. 20, pp. 759–67.
L. M. Clarebrough and C. T. Forwood:Phys. Status Solidi(a), 1976, vol. 33, pp. 355–66.
S. Mahajan, M. L. Green, and D. Brasen:Met. Trans. A, 1977, vol. 8A, pp. 283–93.
S. Ueda and H. Fujita:Trans. Jap. Inst. Metals, 1977, vol. 18, pp. 169–77.
T. Onozuka, S. Yamaguchi, M. Hirabayashi, and T. Wakiyama:J. Phys. Soc. Jap., 1972, vol. 33, p. 857.
J. M. Silcock and W. J. Tunstall:Phil Mag., 1964, vol. 10, pp. 361–89.
W. J. Tunstall and P. J. Goodhew:Phil Mag., 1966, vol. 13, pp. 1259–72.
S. Mahajan:J. Appl. Phys., 1972, vol. 43, pp. 5201–02.
S. Mahajan, D. Brasen, and T. Wakiyama:Metallography, 1977, vol. 10, pp. 179–87.
S. Mahajan, D. E. Barry, and B. L. Eyre:Phil Mag., 1970, vol. 21, pp. 43–52.
S. Mahajan:Phil Mag., 1972, vol. 26, pp. 161–72.
S. Mahajan:Metallography, 1971, vol. 4, pp. 43–49.
T. Wakiyama: unpublished research, Bell Laboratories, 1975.
J. T. Plewes and K. J. Bachmann:Met. Trans., 1973, vol. 4, pp. 1729–34.
J. Friedet:Dislocations, pp. 189–90, Addison-Wesley, Reading, 1964.
S. Mahajan and G. Y. Chin:Acta Met, 1974, vol. 22, pp. 1113–19.
A. W. Sleeswyk and C. A. Verbraak:Acta Met., 1961, vol. 9, pp. 917–27.
Author information
Authors and Affiliations
Rights and permissions
About this article
Cite this article
Mahajan, S., Brasen, D. & Wakiyama, T. Transformation-induced microstructures in cobalt-iron alloys. Metall Trans A 9, 1817–1824 (1978). https://doi.org/10.1007/BF02663413
Received:
Issue Date:
DOI: https://doi.org/10.1007/BF02663413