Solid State Reactions in the Fe-Sn System under Mechanical Alloying and Grinding

Yelsukov, E. P.; Дорофеев, Г. А.; Barinov, V. A.; Grigoreva, T. F.; Болдырев, В. В.

doi:10.4028/www.scientific.net/msf.269-272.151

Cited by 16 publications

(3 citation statements)

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“…In our studies of solid state reactions (SSR) under mechanical alloying (MA) of Fe with sp-elements (C, B, A1, Si, Ge, Sn) it was established [1][2][3][4][5][6][7][8][9][10][11][12] that reaching a nanocrystalline state in the components of the mixture milled, penetration and segregation of sp-atoms along the a-Fe particle grain boundaries are necessary conditions for the SSR proceeding. These conditions are a must independent of the equilibrium phase diagrams.…”

Section: Introductionmentioning

confidence: 99%

Mechanism and kinetics of mechanical alloying in an immiscible Fe-Mg system

Yelsukov¹,

Дорофеев²,

Ul’yanov³

2005

Czech J Phys

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MSssbauer spectroscopy, X-ray diffraction, Auger spectroscopy, secondary ion massspectrometry and chemical analysis were used to study mechanical alloying of Fe and Mg powder mixture with the atomic ratio of 93:7. It has been shown that the process of mechanical alloying involves the formation of nanostructure in a-Fe particles, penetration and segregation of Mg atoms along the a-Fe grain boundaries, formation of the a-Fe(Mg) supersaturated solid solution.PACS: 76.80.+y

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Section: Introductionmentioning

confidence: 99%

Mechanism and kinetics of mechanical alloying in an immiscible Fe-Mg system

Yelsukov¹,

Дорофеев²,

Ul’yanov³

2005

Czech J Phys

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“…MA in these Fe-M systems has been attracting much attention of many research teams for the last 15 years. A detailed analysis of the data published is presented in our papers [1][2][3][4][5][6][7][8][9][10][11]. In general, one can ascertain that MA is proceeded by the formation of laminar structure with characteristic sizes of 1-10 µm (see, e.g.…”

Section: Introductionmentioning

confidence: 98%

Nanostructure and Phases Formation under Mechanical Alloying of Bynary Powder Mixtures of Fe and sp-Element (M); M = C,B,Al,Si,Ge,Sn

Yelsukov¹,

Дорофеев²

2006

Hyperfine Interact

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The processes of mechanical alloying of iron and sp-elements (C, B, Al, Si, Ge, Sn) under identical conditions of mechanical treatment have been studied. General regularities and differences in the mechanisms and kinetics of solid state reactions have been ascertained. A microscopic model of mechanical alloying in these systems is suggested.Key words mechanical alloying · iron and sp-elements · solid state reactions · mechanisms · kinetics.

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“…Процессы разупорядочения или аномального механосплавления в принципе могут быть поняты в терминах прямого перемешивания атомов, обеспечиваемого развитием полос скольжения в пересекающихся плоскостях [15][16][17]. С другой стороны, наблюдаемое ускорение аномального механосплавления при переходе к нанокристаллическому состоянию [18,19], когда проникновение дислокаций в объем зерна затруднено [20] не может быть понято в рамках механизма, предложенного в [15][16][17]. Кажется несомненным, что при умеренных температурах, наряду с процессами перемешивания необходимо учитывать также процессы диффузионного массопереноса.…”

Section: Introductionunclassified

Неравновесные Диффузионные Фазовые Превращения В Сплавах, Обусловленные Миграцией Границ Зерен И Дислокаций

Разумов¹,

Горностырев²,

Ермаков³

2019

Физика Твердого Тела

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The main scenarios of nonequilibrium diffusional transformations induced by moving defects (dislocations, grain boundaries) in alloys under severe plastic deformation are considered. It has been shown that the phase state locally changes in the area of a defect where thermodynamic properties of alloy are locally changed, and the attained state is frozen after the displacement of a defect due to the difference between the rates of bulk diffusion and diffusion on a defect. For this reason, an alloy shifts from the state of its thermodynamic equilibrium under treatment, thus different nonequilibrium states, such as the disordering of alloy, the dissolution of equilibrium phase precipitates, the appearance of nonequilibrium phases, and the formation of regular structures, are possible depending on the type of the system. These effects may take place if the treatment of an alloy is performed at moderate temperatures, when diffusion is frozen in the bulk and rather active on defects. The phenomena of phase and structural instability developing under severe plastic deformation at moderate temperatures are considered within the framework of the proposed model.

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Solid State Reactions in the Fe-Sn System under Mechanical Alloying and Grinding

Cited by 16 publications

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Mechanism and kinetics of mechanical alloying in an immiscible Fe-Mg system

Mechanism and kinetics of mechanical alloying in an immiscible Fe-Mg system

Nanostructure and Phases Formation under Mechanical Alloying of Bynary Powder Mixtures of Fe and sp-Element (M); M = C,B,Al,Si,Ge,Sn

Неравновесные Диффузионные Фазовые Превращения В Сплавах, Обусловленные Миграцией Границ Зерен И Дислокаций

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