Conclusions
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1.
The decomposition of supercooled austenite with nitrogen under isothermal conditions results from redistribution of nitrogen with formation of γ′ and α phases.
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2.
The stability of austenite with nitrogen in the subcritical range of temperatures, as for austenite with carbon, differs. It is lowest at moderate temperatures (450–400°) and highest in the upper (600–500°) and lower (250–150°) temperature ranges.
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A. V. Belotskii, P. V. Dukhota, and V. G. Permyakov, Vestnik Kiev. Politekh. Inst., Seriya Mashinostroenie, 9 (1972).
Additional information
Kiev Polytechnical Institute. Translated from Metallovedenie i Termicheskaya Obrabotka Metallov, No. 3, pp. 38–39, March, 1974.
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Belotskii, A.V., Dukhota, P.V. & Permyakov, V.G. Nitriding and heat treatment of iron alloys with titanium. Met Sci Heat Treat 16, 235–237 (1974). https://doi.org/10.1007/BF00663063
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DOI: https://doi.org/10.1007/BF00663063