Conclusions
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1.
Presence in a welded joint of steel 08Kh18N10T of 2–2.5% δ-ferrite promotes an increase in the degree of first-order stress relaxation at 400–480°C without reducing strength properties and with retention of resistance to ICC.
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2.
A reduction in the relaxation resistance of an electroslag weld with an austenitic structure with a small amount of ferrite is due to the greater deformation capacity of ferite and microvolumes of austenite adjacent to it.
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Additional information
Scientific Production Association, Scientific-Research Institute of Machine Building. Branch of VNIIAM, Volgodonsk. Translated from Metallovedenie i Termicheskaya Obrabotka Metallov, No. 12, pp. 18–21, December, 1989.
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Astaf'ev, A.A., Lepekhina, L.I. & Batieva, N.M. Effect of delta-ferrite on the properties of welded joints of steel 08Kh18N10T. Met Sci Heat Treat 31, 880–884 (1989). https://doi.org/10.1007/BF00798229
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DOI: https://doi.org/10.1007/BF00798229