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Stahle mit unstabilisierten niedrig gekohlten SchweiBzusatzwerkstoffen. Nidtelberichte 24 (1966) 617; 13115. 44. F. Zimmer: Welded joints between steels and different compositions used in the construction of superheaters and reheaters. Publ. 1962, 36 S. 45. W . Rudeker: Die metallurgischen Bedingungen fur das Schweii3en plattierter Stahlbiehe. Schweigen i. Schneiden 10 (1958) 7; 25519. 46. N . Stephenson, C. H. Symonds and D. R. Thorneycroft: Welding of nickel alloys in heavy sections for power generating plant. Brit. Welding J., Mai 1962. 47. M. Outin: I cuprallumini nelle applicazioni industriali il comportamento delle leghe in ambienti marini. 11 Rame 3 (1965) 34/44. 48. G . R. Pease, R. E. Brien und E. Legrand: The control of porosity in high-nickel alloy welds. Welding res. Supplement 37 (1958) 8; 359s-360s. 49. G. R. Pease: Corrosion of nidcel-chromium-iron alloys by welding slags. Welding Res. Supplement 35 (1956) 9; 50. Apparate fur die Verfahrensteknik. Druckschrifi der Firma Heraeus GmbH, Abt. Hochvakuum, Hanau. 51. 0. I. Steklov and A. I. Akulov: The effects of residual stresses and the type of stressed state on corrosion cracking in welded joints. Act. Svarka (1965) 2; 38/43. 52. W . Rudeker: EinfluB einer Feuerverzinkung auf die Eigenschaften von SchweiBverbindungen an Baustahl. SchweiBen u. Schneiden 15 (1963) 3; 106/13. 53. G . Schikorr: Korrosion an Schweihahten an Stahl. Handbuch ,,Werkstoffe -Schweiflung", S. 1326167, AkademieVerlag (1954, Juli), bearb. und hrsgg. von F. ErdrnannJesnitzer. 54. C. M . Cooper: Materials deficiences in welds of hot hydrogen process equipment causes serions failure. Mater. Protection (1964, Jan.) S. 34/40. 469s-472s.

The creep-rupture behaviour of steel X6 CrNi 18 ii (type AISI 304) is influenced by the presence of very pure liquid sodium at 550 C. Creep-rupture tests in a sodium loop have shown that the time-to-rupture is reduced in this liquid environment [1,2].This effect of liquid sodium has initiated a study of the creep and fatigue crack behaviour of this steel in the flowing liquid metal.Pre-cracked compact tension CT specimens of different sizes are used to study the influence of the liquid metal on the creep crack growth and the fatigue cracking behaviour.Int Journ of Fracture 32 (1986)