The results of Stefan problem-based calculations of the distribution of nonstationary temperature fields in the surface layer of iron samples exposed to compression plasma flows at the given initial and boundary conditions are presented with account for the temperature dependence of the heat capacity and thermal conductivity of a sample. It is shown that on ultrafast heating and cooling (~107 K/s), an iron sample exhibits a modified layer having a nonequilibrium microstructure and containing amorphous and nanocrystalline phases that increase its strength and wear resistance.
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F. Landry, P. Schaaf, M. Neubauer, and K.-P. Lieb, Laser nitriding of iron: influence of the spatial laser intensity distribution, Appl. Surf. Sci., 138–139, No. 1, 266–270 (1999).
Yu. Ivanov, W. Matz, V. Rotshtein, R. Gunzel, and N. Shevchenko, Pulsed electron-beam melting of high-speed steel: structural phase transformations and wear resistance, Surf. Coat. Technol., 150, Nos. 2–3, 188–198 (2002).
A. da S. Rocha, T. Strohaecker, and T. Hirsch, Effect of different surface states before plasma nitriding on properties and machining behavior of M2 high-speed steel, Surf. Coat. Technol., 165, No. 2, 176–185 (2003).
H. Akamatsu, T. Ikeda, K. Azuma, E. Fujiwara, and M. Yatsuzuka, Surface treatment of steel by short pulsed injection of high-power ion beam, Surf. Coat. Technol., 136, Nos. 1–3, 269–272 (2001).
G. A. Collins, R. Hutchings, K. T. Short and J. Tendys, Ion-assisted surface modification by plasma immersion ion implantation, Surf. Coat. Technol., 103–104, 212–217 (1998).
R. R. M. de Sousa, F. O. de Araújo, L. C. Gontijo, J. A. P. da Costa, I. O. Nascimento, and C. Alves, Jr., Cathodic cage plasma nitriding (CCPN) of austenitic stainless steel (AISI 316): Influence of the different ratios of the (N2/H2) on the nitrided layers properties, Vacuum, 86, No. 12, 2048–2053 (2012).
V. V. Uglov, V. M. Anishchik, V. V. Astashynski, V. M. Astashynski, S. I. Ananin, V. V. Askerko, E. A. Kostyukevich, A. M. Kuz’mitski, N. T. Kvasov, and A. L. Danilyuk, The effect of dense compression plasma flow on silicon surface morphology, Surf. Coat. Technol., 158–159, 273–276 (2002).
V. V. Uglov, V. M. Anishchik, V. V. Astashynski, and I. N. Rumianceva, Structure of surface layers of iron and carbon steels treated by compression plasma flows, High Temp. Mater. Process., 8, No. 2, 233–243 (2004).
V. V. Uglov, V. M. Anishchik, V. V. Astashinskii, Yu. V. Sveshnikov, E. K. Stal’moshenok, and I. N. Rumyantseva, Change in the microstructure and mechanical properties of iron as a result of the effect of a compression plasma flow, Fiz. Khim. Obrab. Mater., No. 4, 37–42 (2004).
V. V. Astashinskii and I. N. Rumyantseva, Change in the mechanical properties of armco-iron on exposure to thermokinetic action of a compression plasma flow, in: Proc. IX Symp. of Belarus and Serbia on Physics and Diagnostics of a Laboratory and Astrophysical Plasma (PhDP-9), 16–21 September 2012, Minsk (2012), pp. 168–171.
V. V. Astashinskii, Morphology of the iron surface after the action of a compression plasma pulse, in: Proc. 6 th Int. Conf. “Interaction of Radiations with a Solid Body,” 28–30 September 2005, Minsk (2005), pp. 167–169.
V. M. Astashinskii, V. V. Efremov, E. A. Kostyukevich, A. M. Kuz’mitskii, and L. Ya. Min’ko, Interference-shadow investigations of processes occurring in a magnetoplasma compressor, Fiz. Plazmy, 17, No. 9, 1111–1115 (1991).
A. V. Luikov, Heat Conduction Theory [in Russian], Vysshaya Shkola, Moscow (1967).
W. Ebeling, Formation of Structures in Irreversible Processes. Introduction to the Theory of Dissipative Structures [Russian translation], NITs “Regulyarnaya i Khaoticheskaya Dinamika,” Izhevsk (2004).
F. Czerwinski, On the generation of thixotropic structures during melting of Mg-9%Al-1%Zn alloy, Acta Mater., 5, No. 12, 3267–3283 (2002).
V. V. Uglov, V. M. Anishchik, V. V. Astashinskii, V. M. Astashinskii, V. B. Avramenko, S. I. Ananin, V. V. Askerko, E. A. Kostyukevich, A. M. Kuz’mitskii, N. T. Kvasov, and A. L. Danilyuk, Structural modification of the silicon surface on exposure to a compression plasma flow, in: Proc. XII Int. Meet. “Radiation Physics of a Solid Body,” 1–6 July 2002, Sevastopol’ (2002), pp. 16–21.
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Translated from Inzhenerno-Fizicheskii Zhurnal, Vol. 87, No. 4, pp. 791–795, July–August, 2014.
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Astashinskii, V.V. Numerical Calculation of the Dynamics of Temperature Fields That Determine the Phase Composition of Polycrystalline Iron During Its Exposure to a Compression Plasma Flow. J Eng Phys Thermophy 87, 815–819 (2014). https://doi.org/10.1007/s10891-014-1076-3
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DOI: https://doi.org/10.1007/s10891-014-1076-3