Boron modified titanium alloys

Singh, Govindra; Ramamurty, Upadrasta

doi:10.1016/j.pmatsci.2020.100653

Cited by 125 publications

(22 citation statements)

References 176 publications

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“…Investigation of the strengthening mechanism of boron modified titanium alloys could be summarized as follows [58]: i) load sharing mechanism; ii) Hall-Petch strengthening;…”

Section: Strengthening Mechanism and The Role Of Network Structurementioning

confidence: 99%

“…MPa, which was far less than the gap of 73 MPa. Considering the strengthening mechanism of dislocations could be neglected due to the minor difference of coefficient of thermal expansion between TiB and Ti [58], the load-bearing effect of TiBw was not enough to meet the strengthening effect. Notably, the calculation of C0 was conducted under the condition that the TiBw were three-dimensional randomly oriented.…”

Section: Parametermentioning

confidence: 99%

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Embedding boron into Ti powder for direct laser deposited titanium matrix composite: Microstructure evolution and the role of nano-TiB network structure

Fang

Han

Shi

et al. 2021

Composites Part B: Engineering

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“…Investigation of the strengthening mechanism of boron modified titanium alloys could be summarized as follows [58]: i) load sharing mechanism; ii) Hall-Petch strengthening;…”

Section: Strengthening Mechanism and The Role Of Network Structurementioning

confidence: 99%

Section: Parametermentioning

confidence: 99%

Embedding boron into Ti powder for direct laser deposited titanium matrix composite: Microstructure evolution and the role of nano-TiB network structure

Fang

Han

Shi

et al. 2021

Composites Part B: Engineering

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“…The composites were mainly in situ fabricated by the incorporation of B 4 C in Ti matrices via selective laser melting, spark plasma sintering, hot pressing, and hot extrusion [ 2 , 32 , 33 , 34 ]. Both TiB and TiC reinforcements exhibited good compatibility with a titanium matrix due to their comparable thermal expansion coefficients and densities [ 32 , 35 ]. Additives play a beneficial role on grain refining and hindering extensive grain growth, and are characterized by good bonding to the titanium matrix, consequently improving the mechanical properties of the composite [ 31 ].…”

Section: Introductionmentioning

confidence: 99%

Residual Stress Induced by Addition of Nanosized TiC in Titanium Matrix Composite

et al. 2022

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A hot pressing process was employed to produce titanium-based composites. Nanosized TiC particles were incorporated in order to improve mechanical properties of the base material. The amount of nanosized additions in the composites was 0.5, 1.0, and 2.0 wt %, respectively. Moreover, a TiB phase was produced by in situ method during sintering process. The microstructure of the Ti–TiB–TiC composites was characterized by scanning electron microscopy (SEM), electron probe microanalysis (EPMA), electron backscatter diffraction (EBSD), and X-ray diffraction (XRD) techniques. Due to the hot pressing process the morphology of primary TiC particles was changed. Observed changes in the size and shape of the reinforcing phase suggest the transformation of primary carbides into secondary carbides. Moreover, an in situ formation of TiB phase was observed in the material. Additionally, residual stress measurements were performed and revealed a mostly compressive nature with the fine contribution of shear. With an increase in TiC content, linear stress decreased, which was also related with the presence of the TiB phase.

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“…3 However, these modified alloys are generating a lot of interest due to improved as-cast mechanical properties and manufacturing economy. 2 Owing to their high specific strength, low density, excellent corrosion resistance, and good histocompatibility, titanium alloys find extensive applications in aerospace, chemical, and biomedical applications. 4–6 The Ti6Al4V alloy alone accounts for about half of all titanium alloys used.…”

Section: Introductionmentioning

confidence: 99%

Modelling the tribological response in dry sliding of boron modified as-cast Ti6Al4V on hardened steel

Choudhury

Prasad

Schueller

et al. 2021

Proceedings of the Institution of Mechanical Engineers, Part J:

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Tribological characteristics of boron modified as-cast Ti6Al4V alloys are not very well known, but these alloys enjoy improved as-cast mechanical properties and favourable manufacturing economy. Experimental results are reported here for the effects of sliding speed and normal load on the wear rate and the coefficient of friction in dry sliding of these alloys on hardened EN 31 steel. Alloys having 0%, 0.30%, and 0.55% boron by weight were tested. A full factorial experiment assessed the effects of boron content, speed, and load on wear and friction. Interactions between speed and load were found to be statistically significant in influencing the wear rate and the coefficient of friction. Regression models are developed to predict the wear rate and coefficient of friction responses. The developed contour plots can assist designers in choosing operating conditions when selecting these alloys even if the wear mechanisms are unknown. Evidence shows that the wear resistance of Ti6Al4V can be improved by boron addition, and wear regimes are sensitive to boron content.

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Boron modified titanium alloys

Cited by 125 publications

References 176 publications

Embedding boron into Ti powder for direct laser deposited titanium matrix composite: Microstructure evolution and the role of nano-TiB network structure

Embedding boron into Ti powder for direct laser deposited titanium matrix composite: Microstructure evolution and the role of nano-TiB network structure

Residual Stress Induced by Addition of Nanosized TiC in Titanium Matrix Composite

Modelling the tribological response in dry sliding of boron modified as-cast Ti6Al4V on hardened steel

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