Atom Probe Tomography of Carbides Occurring in “Carbide-free” Bainitic Steels

Hofer, Christina; Winkelhofer, Florian; Krammerbauer, J.; Clemens, Helmut; Primig, Sophie

doi:10.1016/j.matpr.2015.07.433

Cited by 6 publications

(1 citation statement)

References 7 publications

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“…The distribution of microstructures can significantly affect the mechanical performance of materials. [ 24,25 ] Under the microscope, ferrite is white and carbide is black, ferrite, and carbide are acicular distributed as tempering sorbite. Ferrite content and structure distribution can be calculated by color recognition statistical area method.…”

Section: Resultsmentioning

confidence: 99%

The Effect of Microstructure Inhomogeneity on Fatigue Property of EA4T Axle Steel

Liu

Wang

Zhang

et al. 2022

steel research int.

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Axles are the key component of high‐speed rail trains, which are required to have a good service performance. In the current study, the microstructures, basic mechanical properties, and fatigue property of EA4T axle steel are investigated. Due to the temperature gradient during heat treatment, the industrial EA4T axles present differences in microstructures, basic mechanical properties, and fatigue property along the radial direction. It is found that the difference in fatigue properties for the outer and middle layers results from the microstructures inhomogeneity variations, and the difference in fatigue properties can be evaluated more accurately by the statistical results of microhardness. The effect of the microhardness evaluation method is that the fatigue characteristic ratios for the two layers calculated by microhardness are more similar than fatigue ratios calculated by tensile strength.

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Section: Resultsmentioning

confidence: 99%