Conclusions
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1.
Reducing the carbon content of steels 000Kh25 and 000Kh28 to 0.005% does not eliminate susceptibility to ICC.
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2.
The susceptibility to ICC of low-carbon ferritic steels after heating at high temperatures depends on the cooling rate. Quenching in water increases the resistance of these steels to ICC.
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3.
Stabilizing annealing at 780°C for 1 h is an effective method of increasing the resistance of low-carbon ferritic steels to ICC.
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Literature cited
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B. A. Movchan, Electron Beam Melting of Metals [in Russian], Znanie, Kiev (1973).
R. Hodes, Corrosion,27, 3, 119–127 (1971).
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Additional information
Translated from Metallovedenie i Termicheskaya Obrabotka Metallov, No. 12, pp. 33–35, December, 1974.
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Tokareva, T.B., Ershova, N.I. & Zubchenko, A.S. Intercrystalline corrosion of low-carbon high-chromium ferritic steels. Met Sci Heat Treat 16, 1034–1036 (1974). https://doi.org/10.1007/BF00664044
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DOI: https://doi.org/10.1007/BF00664044