Synchrotron-based holotomography and X-ray fluorescence study on the stress corrosion cracking behavior of the peak-aged 7075 aluminum alloy

Altenbach, Christoph; Schnatterer, Christian; Mercado, Ulises Alfaro; Suuronen, Jussi‐Petteri; Zander, Daniela; Requena, Guillermo

doi:10.1016/j.jallcom.2019.152722

Cited by 38 publications

(10 citation statements)

References 62 publications

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“…For the destructive methods (metallography serial sectioning/FIB milling) the observed crack growth behavior is highly dependent on the selected regions/planes of observation. X-ray CT and SRCT are both non-destructive tools and capable of reconstructing the three dimensional representations of the area of interest (AOIs) at sub-micron scale [15,22,32,34]. Meanwhile, the acquisition time of projection images via SRCT is much reduced compared to traditional X-ray computed tomography (CT), facilitating in situ observation of the damage evolution in the bulk.…”

Section: Introductionmentioning

confidence: 99%

Data rich imaging approaches assessing fatigue crack initiation and early propagation in a DS superalloy at room temperature

Tan

Bull

Jiang

et al. 2021

Materials Science and Engineering: A

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Section: Introductionmentioning

confidence: 99%

Data rich imaging approaches assessing fatigue crack initiation and early propagation in a DS superalloy at room temperature

Tan

Bull

Jiang

et al. 2021

Materials Science and Engineering: A

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“…The performance of the experimental setup presented here is particularly relevant for biological samples, as for these the issue of identifying and optimizing ROIs while minimizing radiation damage is of great concern. This approach could also benefit samples from other fields of research, such as materials science and physical chemistry (Meirer & Weckhuysen, 2018), in which holography and XRF are already in use (Li et al, 2019;Altenbach et al, 2020;Vesely ´et al, 2021).…”

Section: Discussionmentioning

confidence: 99%

Dose-efficient multimodal microscopy of human tissue at a hard X-ray nanoprobe beamline

Sala¹,

Zhang²,

Rosa³

et al. 2022

J Synchrotron Radiat

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X-ray fluorescence microscopy performed at nanofocusing synchrotron beamlines produces quantitative elemental distribution maps at unprecedented resolution (down to a few tens of nanometres), at the expense of relatively long measuring times and high absorbed doses. In this work, a method was implemented in which fast low-dose in-line holography was used to produce quantitative electron density maps at the mesoscale prior to nanoscale X-ray fluorescence acquisition. These maps ensure more efficient fluorescence scans and the reduction of the total absorbed dose, often relevant for radiation-sensitive (e.g. biological) samples. This multimodal microscopy approach was demonstrated on human sural nerve tissue. The two imaging modes provide complementary information at a comparable resolution, ultimately limited by the focal spot size. The experimental setup presented allows the user to swap between them in a flexible and reproducible fashion, as well as to easily adapt the scanning parameters during an experiment to fine-tune resolution and field of view.

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“…Therefore, it is to be inferred that the T6x temper exhibits similar SCC resistance to the T6+PB temper. Improved localized corrosion (such as pitting) and SCC resistance in overaged temper as compared to peak-edged T6 temper are widely reported [20,21,22]. In addition, the material were tested in bare condition, with relatively high stress level of 80% yield stress.…”

Section: Figure 13: Comparison Of Ultimate Tensile Strength Between Tmentioning

confidence: 99%

A New Approach to Implement High Strength 7075 Aluminum for Automotive Application

2020

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Aluminum alloys offer high specific strength than advanced high strength steels, making them preferred candidates for automotive light weighting. Among them, AA7075 aluminum alloy offers significantly higher strength than 5xxx and 6xxx alloys and is considered an attractive candidate by automotive OEMs for structural applications such as door intrusion beams, B pillars etc. There are several challenges in implementing AA7075, such as long artificial aging time to reach peak strength, joining method and corrosion resistance. In this study, an artificial aging practice that significantly reduces aging time was explored and its influence on mechanical properties of AA7075 was investigated in comparison with conventional peak age practice. In addition, this practice offers a potential solution for joining through self-piercing riveting. Moreover, the effect of artificial aging on corrosion, specifically intergranular corrosion (IGC) and stress corrosion cracking (SCC) was evaluated. The results are discussed with in depth analysis and correlation with microstructure.

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Synchrotron-based holotomography and X-ray fluorescence study on the stress corrosion cracking behavior of the peak-aged 7075 aluminum alloy

Cited by 38 publications

References 62 publications

Data rich imaging approaches assessing fatigue crack initiation and early propagation in a DS superalloy at room temperature

Data rich imaging approaches assessing fatigue crack initiation and early propagation in a DS superalloy at room temperature

Dose-efficient multimodal microscopy of human tissue at a hard X-ray nanoprobe beamline

A New Approach to Implement High Strength 7075 Aluminum for Automotive Application

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