Self-Affine Analysis of Fractures Surfaces of an Aluminum Alloy Using Fractographic Techniques |
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| Journal | Materials Science Forum (Volume 560) |
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| Volume | Advanced Structural Materials III |
| Edited by | H. Balmori-Ramirez, J.G. Cabañas-Moreno, H.A. Calderon-Benavides, K. Ishizaki and A. Salinas-Rodriguez |
| Pages | 91-96 |
| DOI | 10.4028/www.scientific.net/MSF.560.91 |
| Citation | M. Hinojosa et al., 2007, Materials Science Forum, 560, 91 |
| Online since | November, 2007 |
| Authors | M. Hinojosa, Edgar I. Morales, N. Mohamed |
| Keywords | Aluminium Alloy, Correlation Length, Fracture Surface, Hurst Exponent |
| Abstract | We report the self-affine analysis on fracture surfaces of an A319-type aluminum alloy with different modification and refinement treatments, broken both in Charpy impact and cyclic impulse tests. The in-plane and out-of-plane Hurst exponent as well as the correlation length are obtained using quantitative fractographic techniques. It is found that the Hurst exponent, ζ, has a value of about 0.8 and is not influenced neither by the crack propagation modes nor by the microstructural condition. The self-affine correlation length is found to be related to the grain size resulting from the refining and modifying treatments applied to the alloy. |
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