Published February 2006 | Version v1
Journal article Metadata-only

Deformation-induced dissolution of Fe2B boride in nanocrystalline α-Fe

Creators

  • 1. UrO RAN, Fiziko-Tekhnicheskij Inst., Izhevsk (Russian Federation)

Description

Using methods of X-ray diffraction analysis, Moessbauer spectroscopy and magnetic measurements a study is made into structural and phase transformations in a composite material of α-Fe + Fe2B with total boron of 15 at. % on its mechanical comminution in a ball planetary mill. It is established that the dissolution of Fe2B boride, the formation of amorphous phase of Fe-B and the segregation of B atoms along grain boundaries occur when a grain size of 3 nm is attained. A comparative analysis is given for deformation-induced dissolution of Fe2B and Fe3C in Fe-B and Fe-C systems, possible mechanisms of structural and phase transformations are under discussion

Abstract (Russian)

Методами рентгеновской дифракции, мессбауэровской спектроскопии и магнитных измерений изучены структурно-фазовые превращения при механическом измельчении в шаровой планетарной мельнице композита α-Fe + Fe2B с общим содержанием бора 15 ат. %. Установлено, что растворение борида Fe2B, формирование аморфной фазы Fe-B и сегрегаций атомов B на границах зерен происходит при достижении размера зерен 3 нм. Приведен сравнительный анализ деформационно-индуцированного растворения Fe2B и Fe3C в системах Fe-B и Fe-C, обсуждаются возможные механизмы структурно-фазовых превращений

Additional details

Additional titles

Original title (Russian)
Деформационно-индуцированное растворение борида Фе

Publishing Information

Journal Title
Fizika Metallov i Metallovedenie
Journal Volume
101
Journal Issue
2
Journal Page Range
p. 193-199
ISSN
0015-3230
CODEN
FMMEA9

INIS

Country of Publication
Russian Federation
Country of Input or Organization
Russian Federation
INIS RN
37060428
Subject category
S36: MATERIALS SCIENCE;
Descriptors DEI
BINARY MIXTURES; CHEMICAL COMPOSITION; COMMINUTION; DISSOLUTION; GRAIN BOUNDARIES; GRAIN SIZE; IRON BORIDES; IRON-ALPHA; PHASE STUDIES; PHASE TRANSFORMATIONS; POWDERS; SEGREGATION
Descriptors DEC
BORIDES; BORON COMPOUNDS; DISPERSIONS; ELEMENTS; IRON; IRON COMPOUNDS; METALS; MICROSTRUCTURE; MIXTURES; SIZE; TRANSITION ELEMENT COMPOUNDS; TRANSITION ELEMENTS

Optional Information

Notes
27 refs., 5 figs.