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    Kinetic equation for hydrogen-induced direct phase transformations in Y2Fe17 magnetic alloy

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    Model for evolution of the hydrogen-induced direct phase transformation in Y2Fe17 magnetic alloy has been proposed. It is shown that evolution process of hydrogen-induced direct phase transformation in Y2Fe17 type hard magnetic alloy is controlled by diffusion process of Fe atoms in low temperatures interval of 330–750 oC. On the base of Kolmogorov and Lyubov kinetic theory has been obtained kinetic equation that well described the isothermal kinetic diagram for this type transformation in Y2Fe17 alloy.ΠŸΡ€Π΅Π΄Π»ΠΎΠΆΠ΅Π½Π° модСль для развития ΠΈΠ½Π΄ΡƒΡ†ΠΈΡ€ΠΎΠ²Π°Π½Π½ΠΎΠ³ΠΎ Π²ΠΎΠ΄ΠΎΡ€ΠΎΠ΄ΠΎΠΌ прямого Ρ„Π°Π·ΠΎΠ²ΠΎΠ³ΠΎ прСвращСния Π² ΠΌΠ°Π³Π½ΠΈΡ‚ΠΎΡ‚Π²Π΅Ρ€Π΄ΠΎΠΌ сплавС Ρ‚ΠΈΠΏΠ° Y2Fe17. Показано Ρ‡Ρ‚ΠΎ процСсс развития ΠΈΠ½Π΄ΡƒΡ†ΠΈΡ€ΠΎΠ²Π°Π½Π½ΠΎΠ³ΠΎ Π²ΠΎΠ΄ΠΎΡ€ΠΎΠ΄ΠΎΠΌ прямого Ρ„Π°Π·ΠΎΠ²ΠΎΠ³ΠΎ прСвращСния Π² ΠΌΠ°Π³Π½ΠΈΡ‚ΠΎΡ‚Π²Π΅Ρ€Π΄ΠΎΠΌ сплавС Ρ‚ΠΈΠΏΠ° Y2Fe17 Π² Π½ΠΈΠ·ΠΊΠΎΡ‚Π΅ΠΌΠΏΠ΅Ρ€Π°Ρ‚ΡƒΡ€Π½ΠΎΠΌ ΠΈΠ½Ρ‚Π΅Ρ€Π²Π°Π»Π΅ 330–750 oC контролируСтся процСссами Π΄ΠΈΡ„Ρ„ΡƒΠ·ΠΈΠΈ Π°Ρ‚ΠΎΠΌΠΎΠ² Fe. На основС кинСтичСской Ρ‚Π΅ΠΎΡ€ΠΈΠΈ Ρ„Π°Π·ΠΎΠ²Ρ‹Ρ… ΠΏΡ€Π΅Π²Ρ€Π°Ρ‰Π΅Π½ΠΈΠΉ ΠšΠΎΠ»ΠΌΠΎΠ³ΠΎΡ€ΠΎΠ²Π° ΠΈ Π›ΡŽΠ±ΠΎΠ²Π° ΠΏΠΎΠ»ΡƒΡ‡Π΅Π½ΠΎ кинСтичСскоС ΡƒΡ€Π°Π²Π½Π΅Π½ΠΈΠ΅, Ρ…ΠΎΡ€ΠΎΡˆΠΎ ΠΎΠΏΠΈΡΡ‹Π²Π°ΡŽΡ‰Π΅Π΅ ΠΈΠ·ΠΎΡ‚Π΅Ρ€ΠΌΠΈΡ‡Π΅ΡΠΊΡƒΡŽ ΠΊΠΈΠ½Π΅Ρ‚ΠΈΡ‡Π΅ΡΠΊΡƒΡŽ Π΄ΠΈΠ°Π³Ρ€Π°ΠΌΠΌΡƒ для прСвращСния Ρ‚Π°ΠΊΠΎΠ³ΠΎ Ρ‚ΠΈΠΏΠ° Π² сплавС Ρ‚ΠΈΠΏΠ° Y2Fe17
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