Abstract
Tensile failure of high-purity (99.99%) nickel varied systematically with the chemistry of alkali metal environments. Failure was by microvoid coalescence when stressed to destruction in argon, caesium, rubidium and potassium at 250 °C. The ultimate tensile strengths were about 250 MPa and the elongations at failure were approximately 45%. The fracture surfaces of samples tested in sodium displayed evidence of intergranular and transgranular cleavage, but the strength and ductility values were similar to those of samples tested in argon. However, failure in lithium was predominantly by intergranular cleavage, and the average ultimate tensile strengths and elongations to failure were only 107 MPa and 6%. Intergranular cleavage and severe embrittlement was caused also by sodium containing more than 0.2% lithium, but pre-exposure and slow straining had little influence. It is concluded that embrittlement by lithium is a physical process that can be related to parameters such as interfacial energies.
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References
W. H. Johnson,Proc. Roy. Soc. 23 (1874) 168.
W. Rostoker, J. M. McCaughey andH. Markus, “Embrittlement by liquid metals” (Reinhold, New York, 1960).
M. H. Kamdar,Prog. Mater. Sci. 15 (1973) 289.
N. S. Stoloff, “Surfaces and interfaces, 2”, edited by J. J. Burke (Syracuse University Press, Syracuse, 1968) p. 157.
M. G. Nicholas andC. F. Old,J. Mater. Sci. 14 (1979) 1.
C. F. Old,J. Nucl. Mater. 92 (1980) 2.
N. S. Stoloff, in “Embrittlement by liquid and solid metals”, edited by M. H. Kamdar (Metals Society of AIME, New York, 1984) p. 3.
M. G. Nicholas,ibid.in “, p. 27.
N. M. Parikh, “Environment sensitive mechanical behaviour” (Gordon and Breach, New York, 1966) p. 563.
S. P. Lynch,J. Mater. Sci. 21 (1986) 692.
J. E. Cordwell, Proceedings of the Conference, Thomas Telford, “Liquid alkali metals” (British Nuclear Energy Society, London, 1973) p. 177.
V. V. Popovich, I. G. Shtykalo andM. I. Chaevskii,Sov. Mater. Sci. 3 (1967) 88.
R. E. Spencer, D. K. Matlock andD. L. Olson,J. Mater. Energy Systems 4 (1983) 187.
C. F. Old andP. Trevena,Met. Sci. 15 (1981) 281.
O. Chopra andD. Smith,J. Nucl. Mater. 123 (1984) 1213.
C. F. Old andP. Trevena, “Preliminary investigations into the possibility of liquid metal embrittlement of some ferrous alloys by sodium and lithium”, AERE-R9505 (1979).
V. V. Popovich, M. S. Goikhman, E. I. Polyakov andM. I. Chaevski,Sov. Mater. Sci. 5 (1969) 345.
O. Chopra andD. Smith,J. Nucl. Mater. 123 (1984) 1213.
K. Natesan, D. L. Smith, T. F. Kassner andO. K. Chopra, “Structural materials for service at elevated temperatures in nuclear power generation”, edited by A. O. Schaefer (Metals Society of AIME, New York, 1975) p. 302.
J. E. Cordwell, “Tertiary creep of solution treated AISI 316 in air and sodium at 550 °C”, CEGB Report RD/B/N4241 (1978).
J. W. Martin andG. C. Smith,Metallurgia 54 (1956) 227.
M. Tanaka andH. Fukunaga,J. Soc. Mater. Sci. Jpn 18 (1969) p. 541.
M. G. Adamson, W. H. Reineking, S. Vaidyanathan andT. Lauritzen, “Embrittlement by liquid and solid metals”, edited by M. H. Kamdar (Metals Society of AIME, New York, 1984) p. 523.
M. G. Nicholas, P. Trevena andN. S. Stoloff, Proceedings ECF6, “Fracture control of engineering structures”, edited by H. C. van Elst and A. Bakker (Engineering Materials Advisory Service, Warley, West Midlands, 1986) p. 1915.
P. Trevena, N. S. Stoloff andM. G. Nicholas,J. Mater. Sci. 22 (1987) 2948.
A. R. C. Westwood, C. M. Preece andM. H. Kamdar, “Fracture, 33”, edited by H. Leibowitz (Academic Press, New York, 1971) p. 589.
T. B. Massalski, “Binary alloy phase diagrams” (American Society for Metals, Metals Park, Ohio, 1986).
L. Pauling, “The nature of the chemical bond” (Cornell University Press, Cornell, New York, 1939).
T. D. Claar,Reactor Technol. 13 (1970) 124.
M. Barlow andP. J. Planting,Z. Metallkde 60 (1969) 719.
A. R. Miedema andF. J. A. Broeder,Z. Metallkde 70 (1979) 14.
L. E. Murr, “Interfacial phenomena in metals and alloys” (Addison-Wesley, Reading, Massachusetts, 1975).
A. R. Miedema, F. R. De Boer andR. Boom,Calphad 1 (1977) 341.
M. W. Chase, C. A. Davies, J. R. Downey, D. J. Furip, R. A. McDonald andA. N. Syverud,J. Phys. Chem. Ref. Data 14 (1985) Supplement 1.
C. F. Old andP. Trevena,Met. Sci. 15 (1981) 281.
C. L. Briant andR. P. Mesmer,Studies Phys. Theor. Chem. 48 (1987) 261.
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Nicholas, M.G., Fernback, P.J. Tensile properties of high-purity nickel stressed in alkali metal environments. J Mater Sci 26, 4008–4021 (1991). https://doi.org/10.1007/BF00553483
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DOI: https://doi.org/10.1007/BF00553483