Thermodynamic modelling of the ternary B–Mo–Ti system with refined B–Mo description

Witusiewicz, V.T.; Bondar, A. А.; Hecht, U.; Potazhevska, O. A.; Velikanova, Т. Ya.

doi:10.1016/j.jallcom.2015.09.158

Cited by 28 publications

(22 citation statements)

References 44 publications

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“…The weight loss after melting was <1%. Figure 1 shows the Mo-Ti-B liquidus projection [14] with the corresponding alloy concentration investigated in the present study.…”

Section: Methodsmentioning

confidence: 95%

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Microstructure Formation of Cast and Directionally Solidified Mo-Ti-B Alloys

Petrusha

Hasemann

Touzani

et al. 2022

Metals

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In the present work the solidification of various Mo-Ti-B alloys was studied. The alloy compositions were chosen in the direct vicinity of a U-type invariant reaction in relation to the published Mo-rich corner of the Mo-Ti-B liquidus projection. The aim of this study was to understand the solidification path of as-cast Mo-Ti-B alloys and to derive specific knowledge on their peritectic microstructure evolution. In addition to experiments in an arc-melter, zone melting was used to allow slow cooling of a selected alloy composition. Using the achieved experimental data of the alloys investigated, DFT-calculations were carried out to study the influence of Ti on phase formation and stability, their lattice parameters, and mechanical properties.

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“…The weight loss after melting was <1%. Figure 1 shows the Mo-Ti-B liquidus projection [14] with the corresponding alloy concentration investigated in the present study.…”

Section: Methodsmentioning

confidence: 95%

“…Witusiewicz et al [14] modelled the liquidus and solidus projections with the CAL-PHAD method using the experimental data for the ternary Mo-Ti-B system reported by Potazhevska et al [12] and the binary systems of B-Ti, Mo-Ti and B-Mo, where the B-Mo system has been re-modelled to reproduce homogeneity ranges of the molybdenum borides.…”

Section: Introductionmentioning

confidence: 99%

Microstructure Formation of Cast and Directionally Solidified Mo-Ti-B Alloys

Petrusha

Hasemann

Touzani

et al. 2022

Metals

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“…In addition, in order to analyze the strengthening mechanism of Cu-TiB 2 composite, the fracture of solid samples after three-point test was also examined by SEM. Fig.1 shows the phase diagrams of Cu-Ti [21] and Ti-B [22] , according to the mass ratio of copper to titanium and the atomic ratio of titanium to boron. the reactions will take place in the Cu-Ti-B system as follows:…”

Section: Methodsmentioning

confidence: 99%

Quantitative Analysis of TiB 2 Particles and Properties of Cu-TiB 2 Composite Prepared by in Situ Reaction

Meng

Feng

Tian

et al. 2017

Rare Metal Materials and Engineering

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Cu-TiB2 composites were prepared by combining in situ reaction and hot-pressing at different temperatures after ball-milling of the mixture powders of Cu, Ti and B. The reaction process of Cu-Ti-B system was discussed. By means of XRD, SEM, EDS and XPS, it is determined that TiB2 nano-particles are generated by in situ reaction in Cu-matrix. According to the calibration curve of TiB2 and Cu by XRD, the concrete synthesis rate of TiB2 in Cu-matrix at different sintering temperatures by external standard method was confirmed. The results show that in certain temperature range, the higher the temperature is, the higher the synthesis rate is, and the best synthesis rate of TiB2 is 99.27% at 1000 º C. Cu-1.5wt%TiB2 prepared at 1000 º C has the best properties, Its Vickers hardness (HV), electric conductivity (EC), flexure strength (FS), thermal expansivity (TE) and thermal conductivity (TC) at 100 º C are 125.68 MPa, 80.1 % IACS, 755.2 MPa, 9.3×10-6 K-1 and 260 W/(m• K), respectively.

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“…Such a method can also be used to apply hardfacing to new wear parts as well as to restore worn ones. In addition to experimental methods for the development of materials for wear-resistant coatings, the results of thermodynamic modeling [ 77 , 78 ], the calculation of crystal lattice properties [ 79 , 80 , 81 ], the determination of factors influencing corrosion resistance [ 82 ], and a rational choice of deposition process parameters [ 83 , 84 ] are very important for achieving the maximum result of surface reinforcement. When developing technological processes for depositing coatings [ 85 ] and modeling metal melting processes [ 86 ], it is also necessary to take into account the influence of external factors, as well as to apply intelligent methods for comparing energy processes [ 87 ].…”

Section: Introductionmentioning

confidence: 99%

Microstructure and Wear Characterization of the Fe-Mo-B-C—Based Hardfacing Alloys Deposited by Flux-Cored Arc Welding

et al. 2022

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An analysis of common reinforcement methods of machine parts and theoretical bases for the selection of their chemical composition were carried out. Prospects for using flux-cored arc welding (FCAW) to restore and increase the wear resistance of machine parts in industries such as metallurgy, agricultural, wood processing, and oil industry were presented. It is noted that conventional series electrodes made of tungsten carbide are expensive, which limits their widespread use in some industries. The scope of this work includes the development of the chemical composition of tungsten-free hardfacing alloys based on the Fe-Mo-B-C system and hardfacing technology and the investigation of the microstructure and the mechanical properties of the developed hardfacing alloys. The composition of the hardfacing alloys was developed by extending the Fe-Mo-B-C system with Ti and Mn. The determination of wear resistance under abrasion and impact-abrasion wear test conditions and the hardness measurement by means of indentation and SEM analysis of the microstructures was completed. The results obtained show that the use of pure metal powders as starting components for electrodes based on the Fe-Mo-B-C system leads to the formation of a wear-resistant phase Fe(Mo,B)2 during FCAW. The addition of Ti and Mn results in a significant increase in abrasion and impact-abrasion wear resistance by 1.2 and 1.3 times, respectively.

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Thermodynamic modelling of the ternary B–Mo–Ti system with refined B–Mo description

Cited by 28 publications

References 44 publications

Microstructure Formation of Cast and Directionally Solidified Mo-Ti-B Alloys

Microstructure Formation of Cast and Directionally Solidified Mo-Ti-B Alloys

Quantitative Analysis of TiB 2 Particles and Properties of Cu-TiB 2 Composite Prepared by in Situ Reaction

Microstructure and Wear Characterization of the Fe-Mo-B-C—Based Hardfacing Alloys Deposited by Flux-Cored Arc Welding

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