Microstructural study of an irradiated high-nickel alloy by X-ray line profile analysis and TEM observations

Grabova, R.B.; Gorbatov, V. K.; Ostrovsky, Z. E.; Yus'kaev, R.A.

doi:10.1016/s0022-3115(96)00678-2

Cited by 6 publications

(2 citation statements)

References 7 publications

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“…For the deformed sample, a possible source of error in the TEM measurements is the great difficulty in counting individual dislocations in the dense dislocation tangles of highly deformed samples (Figure 7), favoring an underestimate of the dislocation density, as previously reported by Sousa et al 22 and Bailey and Hirsch 12 . Thus, despite the differences, values found by XRD and TEM can be considered appropriate and self-consistent 23 . While the TEM results were presumably impacted by systematic errors, which can be reduced increasing the number analyzed areas Another goal of this work was to compare the values of the dislocation density measured by XRD and TEM.…”

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confidence: 83%

Dislocation Density and Texture in Copper Deformed by Cold Rolling and Ecap

2017

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mentioning

confidence: 83%

Dislocation Density and Texture in Copper Deformed by Cold Rolling and Ecap

2017

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“…Thus, despite the difference, it can be stated that the values found by both XRD and TEM analysis are appropriate and consistent 11,12 . Although the TEM results were impacted by systematic errors, these could be improved increasing the number of samples and regions analyzed, which is costly and slow.…”

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confidence: 74%

Dislocation Density by X-ray Diffraction in α Brass Deformed by Rolling and ECAE

et al. 2015

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Dislocations are responsible for most aspects of plastic deformation in metals. In this work, the dislocation density, ρ, in brass was estimated after different deformation processes via line broadening of X-ray diffractograms using the Convolutional Multiple Whole Profile Program (CMWP) and by Transmission Electron Microscopy (TEM). In addition, we attempted to evaluate, on a global basis, the influence of crystallographic texture in ρ analysis, making sure that the results obtained by XRD could be trusted even in samples with moderate levels of texture. For this, we compared the ρ values for α brass samples (66% Cu and 34% Zn) with different levels of texture, one deformed by cold rolling and the other by equal channel angular extrusion (ECAE).The results suggest that using CMWP program it was possible to satisfactorily estimate the dislocation density in α brass. It also the was shown that the results by XRD and by TEM were self-consistent in two samples texturized to different degrees.

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