Effect of boronizing composition on hardness of boronized AISI 1045 steel

Kul, Mehmet; Danacı, I.; Gezer, Ş.; Karaca, B.

doi:10.1016/j.matlet.2020.128510

Cited by 14 publications

(21 citation statements)

References 9 publications

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“…1 exemplary images of the microstructure obtained on the cross-section of the boride layers on the X6CrNiTi18-10 steel have been presented. It is known [9,[27][28][29][30] that the thickness and phase composition of boron layers are strictly dependent on the applied parameters of the thermo-chemical treatment. As can be seen from Fig.…”

Section: Resultsmentioning

confidence: 99%

“…One of the methods of increasing the durability of structural elements that is applicable to austenitic steels is saturation of the surface with boron. The result of this process is the production of surface layers with high hardness and abrasion resistance [9][10][11][12]. Typical layers of boron saturated steel are characterized by the presence of FeB boride in the near-surface zone.…”

Section: Introductionmentioning

confidence: 99%

“…The hardness of such a layer can reach values close to 2300 HV. In the deeper layers, in the structure are present Fe 2 B borides with a slightly lower hardness, the hardness of such a layer can reach values close to 1800 HV [9,13]. Due to the content of chromium and nickel in the chemical composition of austenitic steels, after the borinizing process, CrB, Cr 2 B, NiB and Ni 2 B may also be present in the surface layer.…”

Section: Introductionmentioning

confidence: 99%

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Effect of boronizing process of AISI 321 stainless steel surface on its corrosion resistance in acid environment (pH = 1)

Jagielska-Wiaderek¹

2021

Manufacturing Technology

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The paper presents results of research under the effect of surface thermo-chemical treatment on the corrosion resistance of X6CrNiTi18-10 steel. The corrosion resistance of the surface layers of stainless steel obtained as a result of thermo-chemical treatment (boronizing process) was assessed using the method of progressive thinning, which consists in performing corrosion tests on deeper and deeper areas of the surface layer. This method allowed for the determination of changes in individual characteristic corrosion parameters read from the potentiokinetic polarization curves and the determination of the depth profiles of these parameters. In the paper, results of tests of X6CrNiTi18-10 steel resistance to general corrosion, performed in acidified sulphate solutions (pH = 1) have been presented. The thickness of the surface layer was assessed on the basis of structural tests and changes in microhardness on the cross-section of the material. It has been found that the extremely high hardness of the boron layer was accompanied by deterioration of the corrosion resistance. The general corrosion rate of the surface layer is 3-4 times higher than the corrosion rate of the material core (substrate). The characteristics of the passive state of steel are particularly worsened, which is manifested by an increase in the value of the critical passivation current, the minimum current in the passive range and by limiting the tendency to secondary passivation.

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Section: Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Effect of boronizing process of AISI 321 stainless steel surface on its corrosion resistance in acid environment (pH = 1)

Jagielska-Wiaderek¹

2021

Manufacturing Technology

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“…Liquid or solid media that contain and may release boron are most often used for boriding [17,18]. In [17], for AISI-1045 steel boriding, 70% Borax (Na 2 B 4 O 7 ) + 30% B 4 C was used as a liquid agent. On the other hand, 5% B 4 C + 90% SiC + 5% KBF 4 was used for solid-phase boriding.…”

Section: Introductionmentioning

confidence: 99%

“…On the other hand, 5% B 4 C + 90% SiC + 5% KBF 4 was used for solid-phase boriding. In this way, a boron enriched surface layer is obtained, its thickness varies from 0.03 to 0.15 mm [17,19]. Boron concentration is an important feature during the boronizing process.…”

Section: Introductionmentioning

confidence: 99%

Analysis of Wear Resistance of Borided Steel C45

2020

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The wear resistance of diffusion coatings in conditions of specific pressures of 3, 7 and 10 MPa was studied. The boride coatings were prepared by means of diffusion methods using C45 steel as the substrate material. Research on the microstructure and redistribution of chemical elements on wear surface of a borided layer was carried out. It was found that the boride coatings should be used under a specific pressure of 7 MPa. It was found that the wear of friction couple coating of steel C45 under specific pressure of 3 MPa proceeds according to the oxidation wear mechanism, while under specific pressures of 7 and 10 MPa the abrasive wear prevails. The wear-induced segregation of atoms in coatings was studied using secondary mass-spectroscopy method (SIMS). Increased C, O, and B concentrations were noticed at the wear surface on depth from 50 to 2000 Å. The secondary wear-induced structure formation on the wear surface resulted in high wear resistance of diffusion borided coatings.

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Enhancing Lubrication Performance of Ga–In–Sn Liquid Metal via Electrochemical Boronising Treatment

Li,

Wu,

Dong

et al. 2024

Lubrication Science

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As one of the liquid metals, Ga–In–Sn liquid metals can function as an advanced lubricant with high conductivity in a tribology system. It has already revealed advancements in several applications, such as coolants and electromechanical relays. However, Ga–In–Sn liquid metal shows poor lubrication performance on industrial metallic materials, which limits its application in engineering. In this study, the electrochemical boronising strategy was applied to improve the lubrication effect of Ga–In–Sn liquid metal on steel friction pairs. Electrochemical boronising treatment was performed to the base material AISI 52100, and a boronised layer with a thickness of around 64 μm was generated. Tribology tests were carried out on both boronised and original samples with the lubrication of Ga–In–Sn liquid metal (68.5 wt% Ga, 21.5 wt% In and 10 wt% Sn). Results show that the wear resistance of the tribo‐system reveals great improvement: The coefficient of friction decreases by 59% and the wear rate drops 85% compared to the steel/steel friction pair. EDS and XPS results show that a tribofilm consisted of Fe/Ga was in situ–generated on the wear scar of the boronised sample, which results in the synergy effect between the boronised layer and the Ga–In–Sn liquid metal. Therefore, we provided a robust strategy to enhance the lubrication performance of Ga–In–Sn liquid metal on a steel friction pair by using electrochemical boronising treatment, which could broaden the application field of Ga–In–Sn liquid metals.

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Effect of boronizing composition on hardness of boronized AISI 1045 steel

Cited by 14 publications

References 9 publications

Effect of boronizing process of AISI 321 stainless steel surface on its corrosion resistance in acid environment (pH = 1)

Effect of boronizing process of AISI 321 stainless steel surface on its corrosion resistance in acid environment (pH = 1)

Analysis of Wear Resistance of Borided Steel C45

Enhancing Lubrication Performance of Ga–In–Sn Liquid Metal via Electrochemical Boronising Treatment

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