2020
DOI: 10.1016/j.msea.2020.139809
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Defect evolution during high temperature tension-tension fatigue of SLM AISi10Mg alloy by synchrotron tomography

Abstract: Lack of fusion defects and porosity are inevitable characteristics of additive manufacturing and these are expected to play a key role in determining fatigue life and fatigue failure. This work followed damage accumulation under tension-tension cyclic loading at 250 ℃ in situ by time-lapse synchrotron radiation X-ray micro-computed tomography (SR-μCT) for AlSi10Mg test-pieces, produced by selective laser melting (SLM) over their complete fatigue lives (ranging from 180 to 38,000 cycles). These samples were fou… Show more

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Cited by 67 publications
(17 citation statements)
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“…12, and c = −0.6) provides a fatigue-life estimation equation based on material ultimate stress (σ u ), fracture strain (ε f ), and elastic modulus (E) as shown in Equation (2).…”
Section: Am 17-4 Ph Fatigue-life Comparison With Existing Lcf Prediction Modelsmentioning
confidence: 99%
See 3 more Smart Citations
“…12, and c = −0.6) provides a fatigue-life estimation equation based on material ultimate stress (σ u ), fracture strain (ε f ), and elastic modulus (E) as shown in Equation (2).…”
Section: Am 17-4 Ph Fatigue-life Comparison With Existing Lcf Prediction Modelsmentioning
confidence: 99%
“…One potential drawback of AM SLM is the creation of material voids during fabrication, caused by un-melted particles and gas entrapment, which can negatively affect mechanical performance [1][2][3][4][5][6][7][8]. Figure 1 shows an illustration of the SLM fabrication procedure, where metal powders are deposited and then melted in layers to form three-dimensional parts.…”
Section: Introductionmentioning
confidence: 99%
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“…This can impose the need for post-processing operations in order to obtain components that are fully compliant with the design features. It is then important to rely on total-volume techniques to characterize metal AM parts, such as Neutron and X-ray diffraction and imaging techniques (Raj et al, 2019;Chae et al 2019;Bao et al 2020). In addition, non-destructive techniques allow the measured prototype to be used in the application for which it was designed.…”
Section: Introductionmentioning
confidence: 99%