Conclusions
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1.
Irrespective of straining rate, embrittlement of the steels under investigation at low temperatures was determined by exhaustion of the ability of the metal to deform plastically.
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2.
The strength under impact loads at very low temperatures decreased considerably.
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3.
A reduced tendency to embrittlement at low temperatures of lowalloyed steels compared with carbon steels was found only when the steels were heat treated.
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4.
Unless they were heat treated, it was pointless to use the low-alloy steels investigated, for parts expected to work under conditions causing cold embrittlement.
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References
E. M. Shevandin, Susceptibility of Low-Alloy Steels to Brittleness. [Book, in Russian], Metallurgizdat Press, 1953.
G. I. Pogodin-Alekseev, Properties of Metals under Impact Loads. [Book, in Russian], Metallurgizdat, 1953.
H. G. Baron,Journal Iron Steel Inst., vol. 182, 1956, 345–65.
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Savitskii, V.G., Popov, K.V., Zakharov, V.F. et al. The effect of chromium and manganese on brittle fracture of low-carbon steel. Met Sci Heat Treat 1, 49–51 (1959). https://doi.org/10.1007/BF00813847
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DOI: https://doi.org/10.1007/BF00813847