The mechanism of phase and structure formation of the Ti-B-Fe system in a combustion wave

Лепакова, O. K.; Raskolenko, L. G.; Maksimov, Yu. M.

doi:10.1007/bf02699520

Cited by 19 publications

(9 citation statements)

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“…In situ Fe-TiB 2 composites have been fabricated using various methods, such as laser cladding [2,3], plasma transferred arc (PTA) [4,5], aluminothermic reduction [6], spark plasma sintering (SPS) [7], and self-propagating high-temperature synthesis (SHS) [8][9][10][11]. In our previous work [12], Fe-TiB 2 powder was synthesized in situ from an iron boride (FeB) and titanium hydride (TiH 2 ) powder mixture by planetary ball-milling and subsequent heat treatment.…”

Section: Introductionmentioning

confidence: 99%

Effect of Mechanical Activation on the In Situ Formation of TiB2 Particulates in the Powder Mixture of TiH2 and FeB

Huynh¹,

Kim²,

Kim³

2017

Archives of Metallurgy and Materials

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The in situ formation of TiB 2 particulates via an interface reaction between Ti and FeB powders was studied. The effects of mechanical activation by high-energy milling on the decomposition of TiH 2 and the interface reactions between Ti and FeB powders to form TiB 2 were investigated. Powder mixtures were fabricated using planetary ball-milling under various milling conditions. The specific ball-milling energy was calculated from the measured electrical power consumption during milling process. High specific milling energy (152.6 kJ/g) resulted in a size reduction and homogeneous dispersion of constituent powders. This resulted in a decrease in the decomposition temperature of TiH 2 and an increase in the formation reaction of TiB 2 particulates in the Fe matrix, resulting in a homogeneous microstructure of nanoscale TiB 2 evenly distributed within the Fe matrix. In contrast, the powder mixture milled with low specific milling energy (36.5 kJ/g) showed an inhomogeneous microstructure composed of relatively large Fe-Fe 2 B particles surrounded by a thin layer of Fe-TiB 2 within a finely dispersed Fe-TiB 2 matrix region.

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Section: Introductionmentioning

confidence: 99%

Effect of Mechanical Activation on the In Situ Formation of TiB2 Particulates in the Powder Mixture of TiH2 and FeB

Huynh¹,

Kim²,

Kim³

2017

Archives of Metallurgy and Materials

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“…It is noteworthy that the TiB 2 particle is extremely fine, around 50 nm, in comparison with previous results reported by others. The received TiB 2 particle size was very coarse from several to tens micrometer [2,[4][5][6][7][8]. With coarse FeB particles, TiB 2 was formed firstly on the surface, gradually created network of TiB 2 particles surrounding Fe 2 B core ( Fig.…”

Section: Phase Composition and Microstructure Of Febtih 2 Powder Mixtmentioning

confidence: 99%

“…The major advantage of in situ process is that the dispersed ceramic phase is created by the chemical reaction between elements of their compounds so that the particles are formed within the metal matrix and are clean, non-oxidized particle-matrix interfaces with higher interfacial strength, improved wettability and better particle-size distribution [3]. The synthesis of TiB 2 phase by various methods have been given: laser cladding [4][5], plasma transferred arc (PTA) [6], aluminothermic reduction [7], and self-propagating high temperature synthesis (SHS) [2,8]. They indicate that TiB 2 particles are able to form in situ via different routes from various initial materials.…”

Section: Introductionmentioning

confidence: 99%

Fabrication of Fe-TiB₂Composite Powder by High-Energy Milling and Subsequent Reaction Synthesis

Khoa¹,

Tuan²,

Lee³

et al. 2013

j. Korean Powder Metall. Inst.

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································································································································································································································Abstract TiB 2 -reinforced iron matrix composite (Fe-TiB 2 ) powder was in-situ fabricated from titanium hydride (TiH 2 ) and iron boride (FeB) powders by the mechanical activation and a subsequent reaction. Phase formation of the composite powder was identified by X-ray diffraction (XRD). The morphology and phase composition were observed and measured by field emission-scanning electron microscopy (FE-SEM) and energy-dispersive X-ray spectroscopy (EDS), respectively. The results showed that TiB 2 particles formed in nanoscale were uniformly distributed in Fe matrix. Fe 2 B phase existed due to an incomplete reaction of Ti and FeB. Effect of milling process and synthesis temperature on the formation of composite were discussed.

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“…For quenching, the burning specimens were immersed in water or a mixture of the combustion synthesis system was burned on a massive copper tray. 17) Rogachev 18,19) studied the structural transitions in a gasless combustion of Ti-C and Ti-B systems by quenching with a copper tray. Fan et al 13,15) improved the CFQM and obtained a cylinder-shaped quenched compact to study the process mechanisms of the SHS of a TiC-Fe composite, a TiC-Al cermet, and a TiC-Ti cermet.…”

Section: Introductionmentioning

confidence: 99%

“…Fan et al 13,15) improved the CFQM and obtained a cylinder-shaped quenched compact to study the process mechanisms of the SHS of a TiC-Fe composite, a TiC-Al cermet, and a TiC-Ti cermet. On the other hand, Maksimov et al 17) estimated the water quenching of the specimens to investigate the macrokinetics of structural changes upon a gas-free combustion of powder mixtures.…”

Section: Introductionmentioning

confidence: 99%

Microstructural Aspects during the Preparation of Y3Al5O12 by Combustion Synthesis and Temperature Field Simulation

Song

Chen

et al. 2011

Mater. Trans.

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The combustion front quenching method (CFQM) combined with the temperature field simulated using the finite element method was used to investigate the microstructural aspects of the fabrication of transparent Y 3 Al 5 O 12 via combustion synthesis. The simulated results indicate that there are three regions corresponding with the temperature distribution whose microstructural aspects were studied. The composite mixtures of the products cannot be separated depending only on their gravities. The filamentous profile of aluminum along with many aluminous intermediate products are detected by XRD, SEM and EDS analysis in the preheat region, which indicates that the heat-transfer can affect the mass-transfer process and the subsequent reaction process. The microstructural aspects show that the combustion reaction of the Al/NiO/Y 2 O 3 powder mixture was initiated by the melting of Al particles.

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The mechanism of phase and structure formation of the Ti-B-Fe system in a combustion wave

Cited by 19 publications

References 0 publications

Effect of Mechanical Activation on the In Situ Formation of TiB2 Particulates in the Powder Mixture of TiH2 and FeB

Effect of Mechanical Activation on the In Situ Formation of TiB2 Particulates in the Powder Mixture of TiH2 and FeB

Fabrication of Fe-TiB₂Composite Powder by High-Energy Milling and Subsequent Reaction Synthesis

Microstructural Aspects during the Preparation of Y<SUB>3</SUB>Al<SUB>5</SUB>O<SUB>12</SUB> by Combustion Synthesis and Temperature Field Simulation

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The mechanism of phase and structure formation of the Ti-B-Fe system in a combustion wave

Cited by 19 publications

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Effect of Mechanical Activation on the In Situ Formation of TiB2 Particulates in the Powder Mixture of TiH2 and FeB

Effect of Mechanical Activation on the In Situ Formation of TiB2 Particulates in the Powder Mixture of TiH2 and FeB

Fabrication of Fe-TiB2Composite Powder by High-Energy Milling and Subsequent Reaction Synthesis

Microstructural Aspects during the Preparation of Y<SUB>3</SUB>Al<SUB>5</SUB>O<SUB>12</SUB> by Combustion Synthesis and Temperature Field Simulation

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Fabrication of Fe-TiB₂Composite Powder by High-Energy Milling and Subsequent Reaction Synthesis