Understanding the near-threshold crack growth behavior in an aluminum alloy by x-ray tomographyMarcel Wicke, Angelika Brueckner-Foit, Tina Kirsten, Martina Zimmermann, Fatih Buelbuel and Hans-Juergen ChristMATEC Web Conf., 165 (2018) 13007DOI: https://doi.org/10.1051/matecconf/201816513007