Characterization of boronized layers on Vanadis 6 tool steel

Кеддам, М.; Hudáková, Mária; Ptačinová, Jana; Moravčík, Roman; Gogola, Peter; Gabalcová, Zuzana; Jurči, Peter

doi:10.1080/02670844.2020.1781377

Cited by 14 publications

(12 citation statements)

References 17 publications

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“…with ρ Fe 2 B = 7.33 g/cm 3 and ρ Fe = 7.86 g/cm 3 . Figure 4 shows the change in mass gain in FeB and Fe 2 B with the exposure time at increasing temperatures.…”

Section: Experimental Verification Of Both Kinetics Approachesmentioning

confidence: 99%

“…The variable u(t) is the location of the (FeB/Fe 2 B) interface and v(t) that of the second interface (Fe 2 B/substrate). The term C 0 stands for the solubility limit of boron within the matrix (=35 × 10 −4 wt.% B) [3].…”

Section: Integral Diffusion Modelmentioning

confidence: 99%

“…Boriding treatment is a method of enrichment of the surface of steels or Armco iron by a thermal diffusion of atomic boron from boron-containing media [1] between 800 and 1050 • C for 0.5 to 10 h. This thermochemical treatment results in improvement of tribological and anticorrosion properties of the treated parts. An extremely high surface hardness obtained on ferrous alloys is ascribed to the formation of boride phases [2,3].…”

Section: Introductionmentioning

confidence: 99%

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Simulating the Growth of Dual-Phase Boride Layer on AISI M2 Steel by Two Kinetic Approaches

Кеддам

Jurči

2021

Coatings

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Two kinetic approaches (integral method and Dybkov method) have been applied for simulating the boriding kinetics of AISI M2 steel in the range of 1173 to 1323 K, by including the effect of incubation periods. For the integral method, a peculiar solution of the resulting system of differential algebraic equations (DAE) has been employed for assessing the diffusivities of boron in FeB and Fe2B. The boron activation energies in FeB and Fe2B have been deduced from both approaches and compared with the data taken from the literature. Furthermore, to experimentally extend the validity of both approaches, four additional boriding conditions obtained on the boronized samples at 1173, 1223, 1273 and 1323 K for 10 h were then used. The predicted boride layers’ thicknesses were confronted to the experimental values. Consequently, a satisfactory concordance was obtained when comparing the simulated layers’ thicknesses to the experimental values derived from the literature.

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“…with ρ Fe 2 B = 7.33 g/cm 3 and ρ Fe = 7.86 g/cm 3 . Figure 4 shows the change in mass gain in FeB and Fe 2 B with the exposure time at increasing temperatures.…”

Section: Experimental Verification Of Both Kinetics Approachesmentioning

confidence: 99%

Section: Integral Diffusion Modelmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Simulating the Growth of Dual-Phase Boride Layer on AISI M2 Steel by Two Kinetic Approaches

Кеддам

Jurči

2021

Coatings

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“…During the formation of the boride layers, the Fe2B phase with a content of 8.83 wt.% B is formed first. The hardness of this phase is around 1700 HV [1]. The FeB phase is formed as the second one.…”

Section: Introductionmentioning

confidence: 98%

“…For ferrous alloys the boronizing process is realized in the temperature range of 800 -1050 °C and for 0.5 -10 h. By this process, it is possible to improve some properties of steels, such as surface hardness, corrosion resistance, wear resistance etc. [1,2]. Boronizing can be realized in gaseous medium [3], in solid medium (powder, paste) [2,4,5], in plasma [4,6] or by electrolysis [7].…”

Section: Introductionmentioning

confidence: 99%

Characterization of Boride Layers on Ryalloy Steel

ORIHEL¹,

ĎURICA²,

DRIENOVSKÝ³

et al. 2022

METAL 2022 Conference Proeedings

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Boronizing is a thermochemical process in which the boron atoms are introduced into the steel surfaces. During this process, the boride layers with high hardness, wear-and corrosion-resistance are formed. In this study, the Royalloy (0.05 wt.% C; 12.6 wt.% Cr; 0.4 wt.% Si and 1.2 wt.% Mn) steel was powder-boronized at 900, 950, 975, 1000 or 1050 °C, and for 1, 3, 5, 7 or 10 h. The boronized samples were analyzed by X-ray diffraction analysis (XRD) to analyze their phase composition, and by scanning electron microscope to analyze their thickness and morphology at the interface with the substrate. To investigate the chemical elements redistribution during the boronizing process, the EDS mapping and EDS point analysis were used. The treatments produced boride layers with a thickness from 8 to 168 µm, depending on the boronizing parameters. During the boronizing process, the chromium was redistributed between the boride layers, where creates the chromium borides, and the transient region underneath the boride layers, where creates the particles with the biggest amount of chromium. The silicon was focused at the layersubstrate interfaces. The concentration of manganese was slightly higher in substrate compared to the boride layers.

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Effect of refractory elements on boronizing properties of the CoCrFeNi high entropy alloy

Cengiz

2021

International Journal of Refractory Metals and Hard Materials

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Characterization of boronized layers on Vanadis 6 tool steel

Cited by 14 publications

References 17 publications

Simulating the Growth of Dual-Phase Boride Layer on AISI M2 Steel by Two Kinetic Approaches

Simulating the Growth of Dual-Phase Boride Layer on AISI M2 Steel by Two Kinetic Approaches

Characterization of Boride Layers on Ryalloy Steel

Effect of refractory elements on boronizing properties of the CoCrFeNi high entropy alloy

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