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Kinetic equation for hydrogen-induced direct phase transformations in Y2Fe17 magnetic alloy
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 330β750 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.ΠΡΠ΅Π΄Π»ΠΎΠΆΠ΅Π½Π° ΠΌΠΎΠ΄Π΅Π»Ρ Π΄Π»Ρ ΡΠ°Π·Π²ΠΈΡΠΈΡ ΠΈΠ½Π΄ΡΡΠΈΡΠΎΠ²Π°Π½Π½ΠΎΠ³ΠΎ Π²ΠΎΠ΄ΠΎΡΠΎΠ΄ΠΎΠΌ ΠΏΡΡΠΌΠΎΠ³ΠΎ ΡΠ°Π·ΠΎΠ²ΠΎΠ³ΠΎ ΠΏΡΠ΅Π²ΡΠ°ΡΠ΅Π½ΠΈΡ Π² ΠΌΠ°Π³Π½ΠΈΡΠΎΡΠ²Π΅ΡΠ΄ΠΎΠΌ ΡΠΏΠ»Π°Π²Π΅ ΡΠΈΠΏΠ° Y2Fe17. ΠΠΎΠΊΠ°Π·Π°Π½ΠΎ ΡΡΠΎ ΠΏΡΠΎΡΠ΅ΡΡ ΡΠ°Π·Π²ΠΈΡΠΈΡ ΠΈΠ½Π΄ΡΡΠΈΡΠΎΠ²Π°Π½Π½ΠΎΠ³ΠΎ Π²ΠΎΠ΄ΠΎΡΠΎΠ΄ΠΎΠΌ ΠΏΡΡΠΌΠΎΠ³ΠΎ ΡΠ°Π·ΠΎΠ²ΠΎΠ³ΠΎ ΠΏΡΠ΅Π²ΡΠ°ΡΠ΅Π½ΠΈΡ Π² ΠΌΠ°Π³Π½ΠΈΡΠΎΡΠ²Π΅ΡΠ΄ΠΎΠΌ ΡΠΏΠ»Π°Π²Π΅ ΡΠΈΠΏΠ° Y2Fe17 Π² Π½ΠΈΠ·ΠΊΠΎΡΠ΅ΠΌΠΏΠ΅ΡΠ°ΡΡΡΠ½ΠΎΠΌ ΠΈΠ½ΡΠ΅ΡΠ²Π°Π»Π΅ 330β750 oC ΠΊΠΎΠ½ΡΡΠΎΠ»ΠΈΡΡΠ΅ΡΡΡ ΠΏΡΠΎΡΠ΅ΡΡΠ°ΠΌΠΈ Π΄ΠΈΡΡΡΠ·ΠΈΠΈ Π°ΡΠΎΠΌΠΎΠ² Fe. ΠΠ° ΠΎΡΠ½ΠΎΠ²Π΅ ΠΊΠΈΠ½Π΅ΡΠΈΡΠ΅ΡΠΊΠΎΠΉ ΡΠ΅ΠΎΡΠΈΠΈ ΡΠ°Π·ΠΎΠ²ΡΡ
ΠΏΡΠ΅Π²ΡΠ°ΡΠ΅Π½ΠΈΠΉ ΠΠΎΠ»ΠΌΠΎΠ³ΠΎΡΠΎΠ²Π° ΠΈ ΠΡΠ±ΠΎΠ²Π° ΠΏΠΎΠ»ΡΡΠ΅Π½ΠΎ ΠΊΠΈΠ½Π΅ΡΠΈΡΠ΅ΡΠΊΠΎΠ΅ ΡΡΠ°Π²Π½Π΅Π½ΠΈΠ΅, Ρ
ΠΎΡΠΎΡΠΎ ΠΎΠΏΠΈΡΡΠ²Π°ΡΡΠ΅Π΅ ΠΈΠ·ΠΎΡΠ΅ΡΠΌΠΈΡΠ΅ΡΠΊΡΡ ΠΊΠΈΠ½Π΅ΡΠΈΡΠ΅ΡΠΊΡΡ Π΄ΠΈΠ°Π³ΡΠ°ΠΌΠΌΡ Π΄Π»Ρ ΠΏΡΠ΅Π²ΡΠ°ΡΠ΅Π½ΠΈΡ ΡΠ°ΠΊΠΎΠ³ΠΎ ΡΠΈΠΏΠ° Π² ΡΠΏΠ»Π°Π²Π΅ ΡΠΈΠΏΠ° Y2Fe17
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