Influence of inclusions on bending fatigue strength coefficient the medium carbon steel melted in an electric furnace

Lipiński, T.; Wach, A.

doi:10.30657/pea.2020.26.18

Cited by 13 publications

(8 citation statements)

References 21 publications

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“…Their unique properties enable increased corrosion protection (Lipiński, 2017;Pliszka and Radek, 2017), even in highly aggressive biological environments (Skrzypczak- Pietraszek, 2015;Lipiński and Karpisz, 2020a). The use of these coatings also significantly improves the wear resistance against friction (Korzekwa et al, Szala et al, 2019), preventing contamination of the lubricants (Radzymińska-Lenarcik et al, 2018) and the associated change in material properties (Lipiński et al, 2020). The features of DLC coatings offer a chance for a significant development of implants that are more resistant to biocorrosion than the existing ones (Dudek and Włodarczyk, 2010;Wojnar et al, 2019).…”

Section: Fig 1 Types Of Amorphous Carbon As a Function Of Hydrogen Con-mentioning

confidence: 99%

Influence of laser texturing on tribological properties of DLC coatings

Radek

Tokar

Kalinowski

et al. 2021

Production Engineering Archives

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The work presents the use of laser texturing of DLC coatings to improve tribological properties. The coatings were applied by the PVD method to the rings made of 4H13 steel. The surface texturing was performed with the TruMICRO 5325c picosecond laser with the radiation wavelength λ = 343 nm. The surface microstructure analysis, surface microgeometry and microhardness measurements and tribological tests were carried out. The problem presented in the paper can be used to extend the knowledge of the areas of application of DLC coatings, especially in sliding friction pairs.

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Section: Fig 1 Types Of Amorphous Carbon As a Function Of Hydrogen Con-mentioning

confidence: 99%

Influence of laser texturing on tribological properties of DLC coatings

Radek

Tokar

Kalinowski

et al. 2021

Production Engineering Archives

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“…It was confirmed that the fatigue strength of metal alloys depends not only on its microstructure, but also on the quantity and quality of non-metallic inclusions. The main role is played by the size and distribution of impurities in the microstructure of the material [33,46,47]. Despite the existence of advanced computer techniques [48,49] and many studies, until now it has not been possible to connect the fatigue strength with the morphology of inclusions occurring in high plasticity steel.…”

Section: Introductionmentioning

confidence: 99%

Influence of Impurity Morphology on the Fatigue Strength of High-Purity Structural Steel Melted in an Electric Furnace

Lipiński¹

2023

Manufacturing Technology

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A modern user requires low operating costs, but also reliability from machines and technical devices. Reliability during the service life depends on the quality of construction solutions, but also largely on the quality, properties and adaptation to the working conditions used in the construction of construction materials. During the operation of technical objects, their a highly predictable wear occurs. The problem is the phenomena of premature wear and damage of elements. The causes of failure of technical facilities are usually complex and depend on many factors. They can include the human factor and the one related to the quality, selection, production and technological processes of the materials used in the construction of the facility. In real technical facilities, many premature failures are caused by material fatigue, which is related to the imperfection of the material and the morphology of non-metallic inclusions. The paper presents the change in fatigue strength for rotational bending of highpurity structural steel. In order to diversify the matrix of inclusions, the steel was hardened and tempered at temperatures from 200C to 600C. The influence of impurity diameter and arithmetic average impurities space on the fatigue strength of industrially produced steel was investigated.

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“…Their impact depends on the size and shape, the density of occurrence, and their location in relation to the grain boundaries of the material, etc. [ 32 , 33 , 34 , 35 , 36 ] Some authors also report that minor non-metallic inclusions need not reduce the fatigue strength of the steel [ 29 ].…”

Section: Introductionmentioning

confidence: 99%

Influence of Non-Metallic Inclusions on Bending Fatigue Strength of High-Quality Carbon Constructional Steel Heated in an Industrial Electric Arc Furnace

Lipiński

2022

Materials

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Non-metallic inclusions are one of the many factors influencing the strength of materials operating under variable loads. Their influence on the strength of the material depends not only on the morphology of the impurities themselves, but it is also closely related to the microstructure of the material. This microstructure is the matrix for non-metallic inclusions. This article discusses the results of a study investigating the effect of non-metallic inclusions on the fatigue strength of structural steel during rotary bending. The study was performed at 12 heats produced in an industrial plant’s 140-ton electric furnaces. Six heats were desulphurised, and six were refined with argon. This paper presents the bending fatigue strength of steel hardened and tempered at different temperatures, subject to the relative volume of inclusions. This paper also presents the dimensional structure of non-metallic inclusions divided by different two technologies. The research shows that the main fraction of non-metallic inclusions is Al2O3; the most numerous were impurities with a diameter of less than 2 µm; argon refining does not affect the proportion of non-metallic inclusions of large dimensions (with a diameter of over 15 µm); the influence of non-metallic inclusions on the strength of the steel is also related to the microstructure of the steel constituting the matrix of inclusions.

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Influence of inclusions on bending fatigue strength coefficient the medium carbon steel melted in an electric furnace

Cited by 13 publications

References 21 publications

Influence of laser texturing on tribological properties of DLC coatings

Influence of laser texturing on tribological properties of DLC coatings

Influence of Impurity Morphology on the Fatigue Strength of High-Purity Structural Steel Melted in an Electric Furnace

Influence of Non-Metallic Inclusions on Bending Fatigue Strength of High-Quality Carbon Constructional Steel Heated in an Industrial Electric Arc Furnace

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