Abstract
The fatigue crack propagation behavior in an Al-Zn-Mg-Cu alloy was investigated by amalgamating X-ray diffraction (XRD) with grain boundary tracking (GBT). The integrated technique, Diffraction-Amalgamated Grain Boundary Tracking (DAGT), provides new possibilities for mapping grain morphologies and crystallographic orientations in three-dimension (3D). 3D crack morphologies at different propagation stages in the bulk of metallic materials were successfully obtained by using Synchrotron Radiation X-ray Microtomography (SRCT). Using 2D slices of the 3D crack, the crack length increment was measured to calculate the crack growth rate which varies significantly. Typical crack morphology, such as crack tilt, is detected by the observation of 2D tomographic slice image. The observed interaction between fatigue crack and polycrystalline microstructures can be analyzed in 3D. Through this synthesis of techniques, DAGT, a detailed direct assessment of microstructure and crack propagation behaviors has been achieved.
This is a preview of subscription content, log in via an institution.
Buying options
Tax calculation will be finalised at checkout
Purchases are for personal use only
Learn about institutional subscriptionsPreview
Unable to display preview. Download preview PDF.
References
T. Zhai, A.J. Wilkinson and J.W. Martin, “A Crystallographic Mechanism for Fatigue Crack Propagation through Grain Boundaries”, Acta Materialia, 48 (2000), 4917–4927.
S.F. Nielsen et al., “A Three-Dimensional X-ray Diffraction Microscope for Deformation Studies of Polycrystals”, Materials Science and Engineering, A 319–321 (2001), 179–181.
H. Toda et al., “Grain Boundary Tracking: A Four-Dimensional Visualization Technique for Determining Grain Boundary Geometry via Local Strain Mapping”, Acta Materialia, 61 (2013), 5535–5548.
D.J. LeClere et al., “Diffraction-Amalgamated Grain-boundary Tracking (DAGT) Technique and its Application to An Aluminum Alloy” (Papers presented at the 13th International Conference on Aluminum Alloys (ICAA13), Pittsburgh, Pennsylvania, 3 June 2012), 9–14.
H. Toda et al., “Direct Measurement Procedure for Three-Dimensional Local Crack Driving Force Using Synchrotron X-ray Microtomography”, Acta Materialia, 56 (2008), 6027–6039.
M. Kobayashi et al., “Preferential Penetration Path of Gallium into Grain Boundary in Practical Aluminum Alloy”, Philosophical Magazine, 86 (2006), 4351–4366.
Author information
Authors and Affiliations
Editor information
Editors and Affiliations
Rights and permissions
Copyright information
© 2014 TMS (The Minerals, Metals & Materials Society)
About this paper
Cite this paper
Li, H., Toda, H., Uesugi, K., Takeuchi, A., Suzuki, Y., Kobayashi, M. (2014). Application of Diffraction-Amalgamated Grain Boundary Tracking (DAGT) to Fatigue Crack Propagation Behavior in High Strength Aluminum Alloy. In: Bernard, D., Buffière, JY., Pollock, T., Poulsen, H.F., Rollett, A., Uchic, M. (eds) Proceedings of the 2nd International Congress on 3D Materials Science. Springer, Cham. https://doi.org/10.1007/978-3-319-48123-4_15
Download citation
DOI: https://doi.org/10.1007/978-3-319-48123-4_15
Publisher Name: Springer, Cham
Print ISBN: 978-3-319-48595-9
Online ISBN: 978-3-319-48123-4
eBook Packages: Chemistry and Materials ScienceChemistry and Material Science (R0)