Abstract
The microstructural modifications in three austenitic stainless steels (types 308, 310, and 312) were evaluated after rapid solidification. These three steels are commonly used weld filler metals. Two methods of rapid solidification were investigated, autogenous laser welding and arc-hammer splat quenching. The structure of 310 stainless steel was found to be 100 pct austenite, and did not vary over the range of conditions studied. On the contrary, the structures of types 308 and 312 steels were very sensitive to the cooling rates and solidification conditions. With the highest cooling rates, the type 308 structure was fully austenitic while the type 312 structure was fully ferritic. At lower cooling rates, the structures were duplex ferrite plus austenite. The results were interpreted in terms of faster kinetics of solidification of austenite compared to ferrite under the conditions examined. A comparison of the structures produced by the two rapid solidification techniques indicated the cooling rates are comparable.
This is a preview of subscription content, log in via an institution to check access.
Similar content being viewed by others
References
J.C. Borland and R.N. Younger:Br. Weld. J., 1960, vol. 7, pp. 22–60.
F.C. Hull:Weld. J., 1967, vol. 46, pp. 399s-409s.
Y. Arata, F. Matsuda, and S. Katayama:Trans. JWRI, 1976, vol. 5(2), pp. 35–51.
S.A. David:Weld. J., 1981, vol. 60, pp. 63s-71s.
N. Suutala, T. Takalo, and T. Moisio:Metall. Trans. A, 1979, vol. 10A, pp. 512–14.
T. Takalo and T. Moisio:Metall. Trans. A, 1979, vol. 10A, pp. 1183–90.
J. C. Lippold and W. F. Savage:Weld. J., 1980, vol. 59, pp. 48s-58s.
Several reviews have been written. A recent review is: R. Mehrabian: “Rapid Solidification,”Int. Metals Review, 1982, vol. 27, pp. 185–208.
W.T. DeLong:Weld. J., 1974, vol. 53, pp. 273s-286s.
T. F. Kelly, M. Cohen, and J. B. Vander Sande, Massachusetts Institute of Technology, Cambridge, MA, unpublished research, 1982.
D.G. MacIsaac, Y. Shiohara, M.G. Chu, and M.C. Flemings: Massachusetts Institute of Technology, Cambridge, MA, unpublished research, 1982.
S. A. David and J. M. Vitek:Lasers in Metallurgy, K. Mukherjee and J. Mazumder, eds., TMS-AIME, Warrendale, PA, 1982, pp. 247–54.
J.M. Vitek and S.A. David:Scanning Electron Microscopy, 1981, vol. 1, pp. 169–75.
W.T. DeLong, G.A. Ostrom, and E.R. Szumachowski:Weld. J., 1956, vol. 35, pp. 526s-533s.
D. M. Kroeger, W. A. Coghlan, D. S. Easton, C. C. Koch, and J. O. Scarbrough:J. Appl. Phys., 1982, vol. 53, pp. 1445–53.
L. S. Weinman and J. N. Devault:Laser-Solid Interactions andLaser Processing-1978, S.D. Ferris, H.J. Leamy, and J.M. Poate, eds., Amer. Inst, of Phys., New York, NY, 1979, pp. 239–42.
J. Bentley, N. J. Zaluzec, E. A. Kenik, and R. W. Carpenter:Scanning Electron Microscopy, 1979, vol. 2, pp. 581–94.
N.J. Zaluzec:Introduction to Analytical Electron Microscopy, J.J. Hren, J.J. Goldstein, and D.C. Joy, eds., Plenum Press, New York, NY, 1979, pp. 121–67.
J. M. Vitek and S. A. David:Trends in Welding Research in the United States, S. A. David, ed., American Society for Metals, Metals Park, OH, 1982, pp. 243–58.
S.A. David, G.M. Goodwin, and D.N. Braski:Weld. J., 1979, vol. 58, pp. 330s-336s.
S.C. Melgi, D.L. Eddingfield, and W. E. Brewer, Jr.: Southern Illinois University, Carbondale, IL, unpublished research, 1982.
N. Bloembergen:Laser-Solid Interactions and Laser Processing-1978, S.D. Ferris, H.J. Leamy, and J.M. Poate, eds., Amer. Inst, of Phys., New York, NY, 1979, pp. 1–9.
A. K. Jena, B. C. Giessen, M. B. Bever, and N. J. Grant:Acta Met., 1968, vol. 16, pp. 1047–51.
T. W. Eagar: Massachusetts Institute of Technology, Cambridge, MA, private communication, 1982.
Author information
Authors and Affiliations
Rights and permissions
About this article
Cite this article
Vitek, J.M., Dasgupta, A. & David, S.A. Microstructural modification of austenitic stainless steels by rapid solidification. Metall Trans A 14, 1833–1841 (1983). https://doi.org/10.1007/BF02645553
Received:
Issue Date:
DOI: https://doi.org/10.1007/BF02645553