Кинетика индуцированного водородом прямого фазового превращения в магнитотвердом сплаве Y2Fe17

Принята  04 июля 2013
Эта работа написана на английском языке
Цитирование: С.Б. Рыбалка, Е.В. Додонова. Кинетика индуцированного водородом прямого фазового превращения в магнитотвердом сплаве Y2Fe17. Письма о материалах. 2013. Т.3. №3. С.209-211
BibTex   https://doi.org/10.22226/2410-3535-2013-3-209-211

Аннотация

 The kinetics of hydrogen-induced direct phase transformation, i.e. decomposition process of Y2Fe17 initial alloy at interaction with hydrogen on YH2 hydride phase and alpha-Fe phase of iron, in Y2Fe17 hard magnetic alloy has been studied. It has been established that, as the temperature increase from 610 to 750˚С, a direct phase transformation significantly accelerates. The activation energy of phase transformation process has been determined from kinetic data (163÷242 kJ/mol) that it is correspond to the values of activation energy of the iron atoms diffusion in R–T type alloys. It has been shown that the kinetics of hydrogen-induced direct phase transformation in Y2Fe17 hard magnetic alloy is controlled by the Fe atoms diffusion to growing new alpha-Fe phase centers. 

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