Role of Non-Metallic Inclusions in the Fracture Behavior of Cold Drawn Pearlitic Steel

Toribio, J.; Ayaso, Francisco-Javier; González, Beatriz

doi:10.3390/met11060962

Cited by 7 publications

(5 citation statements)

References 48 publications

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“…To prevent material regions with a high concentration of nonmetallic inclusions, as reported in the literature, [10,22,23] the machined specimens were obtained from the midsize position between the center and edges of the rolled bar (Figure 1c). Surface grinding and polishing operations were applied to the machined specimens with medium size wheel grit and diamond paste of 3 and 1 μm.…”

Section: Materials Specimens and Methodsmentioning

confidence: 99%

Low Cycle Fatigue and Damage Evaluation on 16MnCr5 Alloy Steel

González‐Zapatero,

García,

Gómora

et al. 2024

steel research int.

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The 16MnCr5 alloy steel samples are evaluated in a normalized condition and put through low cycle fatigue (LCF) under constant amplitude strains of εa = 0.2%, 0.25%, 0.4%, and 0.6%. Mechanical properties are reported based on the LCF results. Fatigue damage is checked in specimens that have reached 80% of their nominal fatigue life by two methods that are different from traditional electronic microscopy: measuring the roughness of the surface and looking at it through full‐field optical microscopy. In addition, the electric resistivity is determined for the test specimens. It presents an increment from the blank value of 6.5 × 10−8 Ωm (free of fatigue damage) to 1.25 × 10−7 Ωm for the fatigue test specimen (εa = 0.6%). Finally, X‐ray diffraction patterns are determined for analyzing the residual equivalent strain at the microscale for the fatigued samples. The residual equivalent strain exhibits a trend toward increasing. For instance, it increases from 18.5 (blank value) to 34.0 με for the fatigue test specimen with εa = 0.6%.

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Section: Materials Specimens and Methodsmentioning

confidence: 99%

Low Cycle Fatigue and Damage Evaluation on 16MnCr5 Alloy Steel

González‐Zapatero,

García,

Gómora

et al. 2024

steel research int.

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“…Toribio et al [5] showed the importance of detailed metallographic and scanning electron microscope (SEM) microstructure analysis of microstructural defects exhibited by pearlitic steels in order to unveil how their evolution by cold drawing has consequences on the isotropic/anisotropic fracture behavior of different steels. Such defects caused by non-metallic inclusions have a very relevant role in the fracture behavior of cold drawn pearlitic steels [5]. Papadopoulou et al [6] also present the importance of advanced microstructure analysis in understanding microstructure evolution and optimizing mechanical behavior.…”

Section: Contributionsmentioning

confidence: 99%

Structure–Properties–Processing Relationships in Metallic Materials

Papaefthymiou¹

2022

Metals

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“…The control of inclusions is not only limited to the refining [12][13][14][15][16][17] and solidification processes [18][19][20], but also needs to pay attention to the evolution behavior of inclusions in the hot working process [21]. And in the study of steel samples, it was also found that there are hard, high-melting-point Al 2 O 3 inclusions.…”

Section: Introductionmentioning

confidence: 99%

Effects of Na2O, K2O and B2O3 on Deformability of SiO2-MnO-Al2O3 Inclusion in High-Carbon Steel

Zhao

Wang

et al. 2023

Metals

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Cord steel is used for making tire frames and wire saws for cutting silicon wafers. The diameter of mainstream cutting wire has been developed to be lower than 100 μm. The size and deformation ability of inclusions are very important to the wire breaking rate of cord steel during the drawing process. In order to improve the deformation ability of the inclusions in cord steel, alkali metal oxide was added into the molten steel to improve the inclusions in the steel so as to obtain good, plastic, low-melting-point inclusions. Mass fractions of 0.3%, 0.5% and 1.0% K2CO3, Na2CO3 and B2O3 were added into cord steel, which were melted in 10 furnaces (including 0% alkali metal oxides, mass fractions of 0.3%/0.5%/1.0% K2CO3, Na2CO3 and B2O3). The morphology and composition of inclusions were observed by SEM-EDS. Factsage phase diagram calculations and experimental results show that, with the increase in Na2CO3 content in cord steel, the aluminum content in the inclusions gradually decreased. When the mass fraction of Na2CO3 was 0.5% per ton, most of the inclusions in the steel fell in the low melting point region (less than 1300 °C). With the increase in K2CO3 content in cord steel, the silicon content in the inclusions decreased gradually. When the mass fraction of K2CO3 was 0.5% per ton, most of the inclusions in the steel fell in the low melting point region. The deformation ability of the inclusions added with 0.5% Na2CO3 in the steel during forging was better than that of the inclusions added with 0.5% K2CO3. After adding B2O3, the inclusions in the steel were SiO2-MnO-Al2O3 inclusions or inclusions with SiO2-MnO-Al2O3 as the core and BN wrapped around. Boron could not be dissolved into the inclusions for plastic modification.

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Role of Non-Metallic Inclusions in the Fracture Behavior of Cold Drawn Pearlitic Steel

Cited by 7 publications

References 48 publications

Low Cycle Fatigue and Damage Evaluation on 16MnCr5 Alloy Steel

Low Cycle Fatigue and Damage Evaluation on 16MnCr5 Alloy Steel

Structure–Properties–Processing Relationships in Metallic Materials

Effects of Na2O, K2O and B2O3 on Deformability of SiO2-MnO-Al2O3 Inclusion in High-Carbon Steel

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