Abstract
The cooling rates of gas-atomized Stellite 6 powders range from 103 to 106 K sec−1 for 400 to 10μm diameter powder particles, respectively. The microstructures vary from the equiaxed type in the coarser particles to dendritic and finally microcrystalline in the finer particles. In the melt-spun ribbons, the microstructure along a cross-section of the ribbon changes from microcrystalline at cooling rates higher than 107 K sec−1 to columnar dendritic at cooling rates of the order of 106 K sec−1.
This is a preview of subscription content, log in via an institution to check access.
Similar content being viewed by others
References
R. D. Field andH. L. Fraser, 1st Conference on Rapid Solidification Processing, Reston, Virginia, November 1977, edited by R. Mehrabian, B. H. Kear and M. Cohen, (Claitors, Baton Rouge, 1978) p. 270.
R. Mehrabian,ibid. p. 9.
H. A. Davies, N. S. Shohoji andD. H. Warrington, 2nd Conference on Rapid Solidification Processing, Reston, Virginia, March 1980, edited by R. Mehrabian, B. H. Kear and M. Cohen, (Claitors, Baton Rouge, 1980) p. 153.
Y. Adda andJ. Philibert, “La Diffusion dans les Solides” (Presses Universitaires de France, Paris, 1966).
S. C. Hsu, S. Chakravorty andR. Mehrabian,Met. Trans. B,9 (1978).
M. R. Glickstein, R. J. Patterson II, N. E. Shockley, 1st Conference on Rapid Solidification Processing, Reston, Virginia, November 1977, edited by R. Mehrabian, B. H. Kear and M. Cohen (Claitors, Baton Rouge, 1978) p. 46.
Author information
Authors and Affiliations
Rights and permissions
About this article
Cite this article
Duflos, F., Stohr, JF. Comparison of the quench rates attained in gas-atomized powders and melt-spun ribbons of Co- and Ni-base superalloys: influence on resulting microstructures. J Mater Sci 17, 3641–3652 (1982). https://doi.org/10.1007/BF00752209
Received:
Accepted:
Issue Date:
DOI: https://doi.org/10.1007/BF00752209