Abstract
We analyze the results of using the partial pressure of nitrogen, thermokinetic parameters of saturation, elements of vacuum technology (vacuum annealing, heating in vacuum), and the initial structure and texture of material as factors for the intensification of nitriding in molecular nitrogen. We show that the processes of nitride formation and gas saturation are activated both by thermocycling and an increase in the temperature of isothermal soaking. When the partial pressure of nitrogen decreases, the nitride formation is retarded, but the gas saturation is accelerated. A similar effect is observed if one uses elements of vacuum technology. Conditions of high-speed heating make it possible to activate the nitride formation by inhibiting the appearance of the zone of α-solid solution of nitrogen in titanium.
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Karpenko Physicomechanical Institute, Ukrainian Academy of Sciences, L'viv. Translated from Fizyko-Khimichna Mekhanika Materialiv, Vol. 35, No. 1, pp. 61–70, January–February, 1999.
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Pohrelyuk, I.M. Ways of intensification of thermodiffusive saturation of titanium alloys in molecular nitrogen. Mater Sci 35, 66–75 (1999). https://doi.org/10.1007/BF02355603
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DOI: https://doi.org/10.1007/BF02355603