Peculiarities of phase formation in the mechanosynthesized titanium carbohydride powders under short pulse selective laser alloying

Eryomina, M.A.; Lomayeva, S.F.; Kharanzhevskiy, E. V.; Бурнышев, И. Н.

doi:10.1140/epjst/e2019-900106-6

Cited by 4 publications

(2 citation statements)

References 19 publications

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“…Such a combination of hardness and density makes the prepared compact even better than a commercial Ti-6Al-4V alloy showing a density of 4.42-4.47 g•cm −3 and a Vickers hardness of 3.3-3.6 GPa [17]. When Ti coating is applied to steel plates A, hydrides and carbohydrides decompose, and the released titanium interacts with the melted steel substrate to form carbide, intermetallic compounds, and solid solutions [18,19]. The resulting gradient coating is 10 µm thick and turns out to be well attached to the substrate.…”

Section: Titanium-based Systemsmentioning

confidence: 99%

Wet Ball Milling Applied to Production of Composites and Coatings Based on Ti, W, and Nb Carbides

Eryomina

Lomayeva

2023

Powders

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The paper demonstrates the potential of wet ball milling of metals for the synthesis of various carbides and carbohydrides. The work reports on multicomponent carbides formed in Ti-(Cu/Fe/Si)-C, W-Fe-C, and Nb-(Cu/Fe/Si/Al)-C systems, as well as metastable or high-temperature intermetallics formed in Ti-Si, Nb-Si, Nb-Al, and Nb-Cu-Fe systems, which are stabilized with interstitial carbon. The formation of phase composition of powders fabricated under mechanochemical synthesis and subsequent thermal treatment has been studied. The as-fabricated powders have been used to produce bulk compacts and to apply wear-resistant coatings on steel (iron).

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Section: Titanium-based Systemsmentioning

confidence: 99%

Wet Ball Milling Applied to Production of Composites and Coatings Based on Ti, W, and Nb Carbides

Eryomina

Lomayeva

2023

Powders

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“…The methods considered above to improve the wear resistance of cutting tools and machine parts can be used as the combined hardening treatment. However, the production found the use of only some of them, such as wear-resistant coatings [29], laser processing [30], ion nitriding [31], wear-resistant coatings [32], laser alloying [33], nitriding [34], and cryogenic-erosion processing [35].…”

Section: Introductionmentioning

confidence: 99%

Impact of Magnetic-Pulse and Chemical-Thermal Treatment on Alloyed Steels’ Surface Layer

et al. 2022

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The relevant problem is searching for up-to-date methods to improve tools and machine parts’ performance due to the hardening of surface layers. This article shows that, after the magnetic-pulse treatment of bearing steel Cr15, its surface microhardness was increased by 40–50% compared to baseline. In this case, the depth of the hardened layer was 0.08–0.1 mm. The magnetic-pulse processing of hard alloys reduces the coefficient of microhardness variation from 0.13 to 0.06. A decrease in the coefficient of variation of wear resistance from 0.48 to 0.27 indicates the increased stability of physical and mechanical properties. The nitriding of alloy steels was accelerated 10-fold that of traditional gas upon receipt of the hardened layer depth of 0.3–0.5 mm. As a result, the surface hardness was increased to 12.7 GPa. Boriding in the nano-dispersed powder was accelerated 2–3-fold compared to existing technologies while ensuring surface hardness up to 21–23 GPa with a boride layer thickness of up to 0.073 mm. Experimental data showed that the cutting tool equipped with inserts from WC92Co8 and WC79TiC15 has a resistance relative to the untreated WC92Co8 higher by 183% and WC85TiC6Co9—than 200%. Depending on alloy steel, nitriding allowed us to raise wear resistance by 120–177%, boriding—by 180–340%, and magneto-pulse treatment—by more than 183–200%.

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Composites prepared by multistage wet ball milling of Ti and Cu powders: Phase composition and effect of surfactant addition

Eryomina

Lomayeva

2020

Advanced Powder Technology

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Peculiarities of phase formation in the mechanosynthesized titanium carbohydride powders under short pulse selective laser alloying

Cited by 4 publications

References 19 publications

Wet Ball Milling Applied to Production of Composites and Coatings Based on Ti, W, and Nb Carbides

Wet Ball Milling Applied to Production of Composites and Coatings Based on Ti, W, and Nb Carbides

Impact of Magnetic-Pulse and Chemical-Thermal Treatment on Alloyed Steels’ Surface Layer

Composites prepared by multistage wet ball milling of Ti and Cu powders: Phase composition and effect of surfactant addition

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