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Influence of Lead Melts on the Embrittlement of Chromium Steels of Ferritic and Austenitic Classes

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We study the influence of liquid-metal media of lead and the eutectic lead–bismuth mixture on the mechanical properties of chromium and chromium–nickel steels of ferritic (Fe–11Cr) and austenitic (Kh18N10Т) classes under uniaxial tension within the range 350–600°С. For the Fe–11Cr (SUH 409L) steel, the maximum decrease in plasticity down to 14% was recorded in lead at 450°С. For Kh18N10Т austenitic steel, in the entire temperature range of the tests, the value of the coefficient of influence of the medium exceeds 1, i.e., the level of plasticity in the investigated media is higher than in vacuum and, hence, steel is not embrittled under static uniaxial tensile loading in liquid-metal media.

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Authors and Affiliations

  1. Karpenko Physicomechanical Institute, Ukrainian National Academy of Sciences, Lviv, Ukraine

    V. М. Fedirko, І. S. Kukhar, І. М. Pohrelyuk & Kh. R. Mel’nyk

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  1. V. М. Fedirko
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  2. І. S. Kukhar
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  3. І. М. Pohrelyuk
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  4. Kh. R. Mel’nyk
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Correspondence to V. М. Fedirko.

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Translated from Fizyko-Khimichna Mekhanika Materialiv, Vol. 55, No. 3, pp. 121–124, May–June, 2019.

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Fedirko, V.М., Kukhar, І.S., Pohrelyuk, І.М. et al. Influence of Lead Melts on the Embrittlement of Chromium Steels of Ferritic and Austenitic Classes. Mater Sci 55, 430–434 (2019). https://doi.org/10.1007/s11003-019-00321-z

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  • DOI: https://doi.org/10.1007/s11003-019-00321-z

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