Thermodynamic modeling of fluxing alloys of Ni-C-Cr-Si-B system

Ilinykh, N. I.; Krivorogova, A. S.

doi:10.1140/epjst/e2016-60240-0

Cited by 3 publications

(3 citation statements)

References 12 publications

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“…The correct calculations of the system equilibrium imply the availability of data on the existing phases, their transformations, and thermodynamic properties. Terra ® software allows modeling of partially non-equilibrium processes using the following methods [ 38 ]: exclusion from the calculation of phases that do not have enough time to form. For example, during SPS, rapid heating and rapid quenching of the material occur, and the formation of a number of intermetallic compounds or solid solutions can be excluded; ‘freezing’ the absolute content of some reagents, for example, with high phase stability, as well as low reactivity or short process times.…”

Section: Methodsmentioning

confidence: 99%

Preparation and Study of Composite Materials of the NiAl-Cr-Mo-Nanoparticles (ZrO2, MgAl2O4) System

Агуреев¹,

Костиков

Савушкина

et al. 2022

Materials

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Materials based on the NiAl-Cr-Mo system with zirconium oxide or aluminum-magnesium spinel nanoparticle small additions were obtained by spark plasma sintering. Thermodynamic modeling was carried out to predict the phase formation in the NiAl-Cr-Mo system and its change depending on temperature, considering the presence of a small amount of carbon in the system. The phase composition and microstructure of materials were studied. NiAl (B2) and CrMo phases were found in the sintered samples. Bending strength measurements at different temperatures shows that nanoparticles of insoluble additives lead to an increase in bending strength, especially at high temperatures. A fractographic analysis of the sample’s fractures shows their hybrid nature and intercrystalline fracture, which is confirmed by the clearly visible matrix grains similar to cleavage. The maximum strength at 700 °C (475 MPa) was found for material with the addition of 0.1 wt.% zirconium oxide nanoparticles. In the study of internal friction, typical peaks of a nickel-aluminum alloy were found in the temperature ranges of 150–200 °C and 350–400 °C.

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Section: Methodsmentioning

confidence: 99%

Preparation and Study of Composite Materials of the NiAl-Cr-Mo-Nanoparticles (ZrO2, MgAl2O4) System

Агуреев¹,

Костиков

Савушкина

et al. 2022

Materials

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“…In contrast, the character of structure formation in the coatings obtained using the powder tapes PL AN-101 and PL AN-111 remains insufficiently studied, and therefore requires more detailed research. Such a study could be conducted employing a thermodynamic simulation [16]. Simulation results typically reflect a thermodynamically-stable state of the system, which is formed during crystallization of the alloy under equilibrium conditions, that is, at a very low cooling rate.…”

Section: термодинамическим моделированием с использованием компьютернmentioning

confidence: 99%

Simulation of structure formation in the Fe–C–Cr–Ni–Si surfacing materials

Efremenko

Belik

Chabak

et al. 2018

EEJET

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“…Of course, many of the papers in this special issue belong to more traditional research areas of phase equilibria, such as that of metal systems, which have clear technological applications: the aluminium-barium phase diagram [14], local order in molten steel for control over its properties [15], glass-forming mixtures of metals [16], the holmium-germanium phase diagram [17], mixtures between a rare earth and gold for use in new technologies [18], the phase diagrams of Ag-In and Cu-In [19], thermodynamic modeling of fluxing alloys of Ni-C-Cr-Si-B systems [20], and crystallization of Al-Co-Dy(Ho) amorphous alloys [21].…”

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confidence: 99%

Phase equilibria and their applications

Rietveld

2017

Eur. Phys. J. Spec. Top.

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This special issue on phase behavior was instigated by the successful JEEP (Journées d'Étude desÉquilibres entre Phases) meeting in March 2016 in Paris. The meeting is held yearly for over forty years and was established by a group of French researchers back in the seventies working on phase equilibria. It explains why its name is French even if the working language during the conference is nowadays English, as a large community from different countries participates (which has led to the proposition to call the conference 'Joint European days on Equilibria between Phases'). This special issue is not the proceedings of the conference, but it does demonstrate the vast research area in which phase equilibria are of importance.Phase behavior can appear as something magical. To take a simple example, the freezing or melting of water occurs at constant temperature, which means that mixtures of water and ice can be used to control temperature very accurately. In first instance, and possibly even after one understands thermodynamics, this can appear a miracle.An interesting question related to phase behavior is for example the preferential formation of one form of calcium carbonate by shellfish, whereas a more stable form of calcium carbonate exists. How could this happen? How does the animal control the formation of a less stable form? How can the animal prevent the interconversion into the more stable form? Similar questions exist in the pharmaceutical realm, where formulators need to ascertain the stability of a drug formulation, consisting for example of a powder, a tablet, or a suspension. A patient expects that his or her drug will work even after it has been stored on a shelf in the bathroom for over a year. This requires understanding of the solid-state behavior of drugs and mixtures of drugs and their sensitivity to water. Therefore, the FDA (Food and Drug Administration) and EMA (European Medicine Agency) require the pharmaceutical industry to prove that they can maintain their formulation for a given period of time.Similar questions exist for metal tools in industry used under high pressure, strain, and high temperatures. Machinery cannot fail when working under demanding circumstances, as it can cause dangerous situations and it will result in loss of material and profit. Another interesting issue is the taste and mouth feel of chocolate, which highly depends on the proper crystal form of the cocoa butter. It possesses several different crystal structures, and the most sought after form melts just above 30• C in a

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Thermodynamic modeling of fluxing alloys of Ni-C-Cr-Si-B system

Cited by 3 publications

References 12 publications

Preparation and Study of Composite Materials of the NiAl-Cr-Mo-Nanoparticles (ZrO2, MgAl2O4) System

Preparation and Study of Composite Materials of the NiAl-Cr-Mo-Nanoparticles (ZrO2, MgAl2O4) System

Simulation of structure formation in the Fe–C–Cr–Ni–Si surfacing materials

Phase equilibria and their applications

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