Abstract
Grain boundary segregation is often considered to play a role in the various types of intergranular failures observed in austenitic alloys. However, there has been little direct study of this segregation because it is usually very difficult to obtain intergranular fracture in these alloys in the high vacuum required for surface analysis. This paper reports an Auger electron spectroscopy study of grain boundary segregation in the nickel-base Alloy 182. This alloy was used because it would easily fracture along its grain boundaries in high vacuum and because it has a very complex microstructure, as do many nickel-base alloys used in engineering applications. Furthermore, the alloy is widely used as a weld filler metal to join nickel-base alloys to one another or to stainless steels. Phosphorus was found to be the only impurity element that segregated to the grain boundaries. There was considerable variability in segregation from grain boundary to grain boundary and also on a single grain facet. It is suggested that these variations arise primarily from variations in grain boundary structure, in the density and types of precipitates in a grain boundary, and in the consequent variety of precipitate matrix interfaces present at the grain boundary. It is also suggested that quantitative Auger analysis on such a material would be very difficult.
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References
B.J. Berkowitz and R.D. Kane:Corrosion, 1980, vol. 36, p. 24.
G.C. Allan and R.K. Wild:Phil. Mag. A, 1986, vol. 54, p. L37.
G. P. Airey:Corrosion 84, paper 180, New Orleans, LA, April 1984.
G.P. Airey:Metallography, 1980, vol. 13, p. 21.
G. S. Was, H. H. Tischner, and R. M. Latanision:Metall. Trans. A, 1981, vol. 12A, p. 1397.
M. Guttman, Ph. Dumoulin, Nguyen Tan-Tai, and P. Fontaine:Corrosion, 1981, vol. 37, p. 416.
R.M. Krueger, S.F. Claeys, and G.S. Was:Corrosion, 1985, vol. 41, p. 504.
G. S. Was and J. R. Martin:Metall. Trans. A, 1985, vol. 16A, p. 349.
E.L. Hall and C. L. Briant:Metall. Trans. A, 1985, vol. 16A, p. 1225.
C. L. Briant:Metall. Trans. A, 1985, vol. 16A, p. 2061.
J. Y. Park and S. Danyluk:Corrosion, 1977, vol. 33, p. 304.
R. E. Clausing and E. E. Bloom: inGrain Boundaries in Engineering Materials, J. L. Walter, J. H. Westbrook, and D. A. Woodford, eds., Claitor’s, Baton Rouge, LA, 1975, p. 491.
J. B. Lumsden and P. J. Stocker:Corrosion, 1981, vol. 37, p. 60 andScripta Metall, 1981, vol. 15, p. 1295.
Wolfgang Losch and Ivani Andreoni:Scripta Metall., 1978, vol. 12, p. 277.
A. Joshi and D.F. Stein:Corrosion, 1972, vol. 28, p. 321.
Hannu Hanninen and Erkki Minni: Technical Research Center of Finland, Espoo, Finland, Report 32/1981, Oct. 1981.
C.L. White, J.H. Schneibel, and R. A. Padgett:Metall. Trans. A, 1983, vol. 14A, p. 595.
C. L. Briant and E. L. Hall:Corrosion, 1987, vol. 43, p. 525.
R. A. Page:Corrosion, 1983, vol. 39, p. 409.
E.F. Kearney, T.L. Chapman, and D.E. Delwiche: inTrans. of the Eighth Internat. Conf. on Structural Mechanics in Reactor Technology, Brussels, Aug. 1985, vol. Dl/2.
Jun Kameda and C.J. McMahon,Jr.: Metall. Trans. A, 1981, vol. 12A, p. 31.
C L. Briant:Acta Metall., 1982, vol. 31, p. 257.
C.L. Briant:Metall. Trans. A, 1987, vol. 18A, p. 691.
R. A. Mulford, C. L. Briant, and R. G. Rowe: inScanning Electron Microscopy (dy1980)1,O. Johari, ed., SEM, Chicago, IL, 1980, p. 487.
R. A. Mulford: unpublished research, General Electric Co., Sche- nectady, NY, 1980.
R. H. Jones, S. M. Bruemmer, M. T. Thomas, and D. R. Baer:Metall. Trans. A, 1983, vol. 14A, p. 1729.
R. H. Jones, M. J. Danielson, S. M. Bruemmer, D. R. Baer, and M. T. Thomas: inEmbrittlement by the Localized Crack Environment, R. P. Gangloff, ed., AIME, Warrendale, PA, 1984, p. 419.
S.M. Bruemmer, R. H. Jones, M. T. Thomas, and D.R. Baer: inEnvironmental Degradation of Engineering Materials in Aggressive Environments, M. R. Louthan, Jr., R. P. McNitt, and R.D. Sisson, Jr., eds., VPI, Blacksburg, VA, 1981, p. 25.
R.A. Mulford: inTreatise in Materials Science and Technology, C. L. Briant and S. K. Barenji, eds., Academic Press, New York, NY, 1983, vol. 25, p. 1.
C. L. Briant and N. Lewis:Materials Science and Technology, 1986, vol. 2, p. 34.
Tadao Watanabe:Res. Mechanica, 1984, vol. 11, p. 47.
T. Ogura, A. Makino, and T. Masumoto:Scripta Metall., 1980, vol. 14, p. 887.
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Briant, C.L. Grain boundary segregation in the Ni-base alloy 182. Metall Trans A 19, 137–143 (1988). https://doi.org/10.1007/BF02669822
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DOI: https://doi.org/10.1007/BF02669822