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http://dx.doi.org/10.3740/MRSK.2018.28.7.398

Internal Stress/Strain Analysis during Fatigue Crack Growth Retardation Using Neutron Diffraction  

Seo, Sukho (Department of Materials Science and Engineering, Chungnam National University)
Huang, E-Wen (Department of Materials Science and Engineering, National Chiao Tung University)
Woo, Wanchuck (Neutron Science Division, Korea Atomic Energy Research Institute)
Lee, Soo Yeol (Department of Materials Science and Engineering, Chungnam National University)
Publication Information
Korean Journal of Materials Research / v.28, no.7, 2018 , pp. 398-404 More about this Journal
Abstract
Fatigue crack growth retardation of 304 L stainless steel is studied using a neutron diffraction method. Three orthogonal strain components(crack growth, crack opening, and through-thickness direction) are measured in the vicinity of the crack tip along the crack propagation direction. The residual strain profiles (1) at the mid-thickness and (2) at the 1.5 mm away from the mid-thickness of the compact tension(CT) specimen are compared. Residual lattice strains at the 1.5 mm location are slightly higher than at the mid-thickness. The CT specimen is deformed in situ under applied loads, thereby providing evolution of the internal stress fields around the crack tip. A tensile overload results in an increased magnitude of the compressive residual stress field. In the crack growth retardation, it is found that the stresses are dispersed in the crack-wake region, where the highest compressive residual stresses are measured. Our neutron diffraction mapping results reveal that the dominant mechanism is by interrupting the transfer of stress concentration at the crack tip.
Keywords
stainless steel; fatigue crack growth; retardation; stress field; neutron diffraction;
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1 J. D. Almer, J. B. Cohen and R. A. Winholtz, Metall. Mater. Trans. A, 29, 2127 (1998).   DOI
2 P. J. Withers and H. K. D. H. Bhadeshia, Mater. Sci. Techol., 17, 355 (2001).   DOI
3 D. J. Hornbach, and P. S. Prevey, J. Press. Vessel Technol., 124, 359 (2002).   DOI
4 S. Xu, C. Wang and W. Wang, Eng. Fail. Anal., 51, 1 (2015).   DOI
5 A. Steuwer, M. Rahman, A. Shterenlikht, M. E. Fitzpatrick, L. Edwards and P. J. Withers, Acta Mater., 58, 4039 (2010).   DOI
6 S. Y. Lee, P. K. Liaw, H. Choo and R. B. Rogge, Acta Mater., 59, 485 (2011).   DOI
7 S. Y. Lee, H. Choo, P. K. Liaw, K. An and C. R. Hubbard, Acta Mater., 59, 495 (2011).   DOI
8 R. Barabash, Y. Gao, Y. Sun, S. Y. Lee, H. Choo, P. K. Liaw, D. W. Brown and G. E. Ice, Philos. Mag. Lett., 88, 553 (2008).   DOI
9 A. J. McEvily, S. Ishihara and Y. Mutho, Int. J. Fatigue, 26, 1311 (2004).   DOI
10 G. Wheatley, X. Z. Hu, and Y. Estrin, Fatigue Fract. Engng. Mater. Struct., 22, 1041 (1999).   DOI
11 I. Nikitin and M. Besel, Mater. Sci. Eng., A, 491, 297 (2008).   DOI
12 P. Lopez-Crespo, P. J. Withers, F. Yusof, H. Dai, A. Steuwer, J. F. Kelleher and T. Buslaps, Fatigue Fract. Engng. Mater. Struct., 36, 75 (2013).   DOI
13 G. Hinds, L. Wickström, K. Mingard and A. Turnbull, Corros. Sci., 71, 43 (2013).   DOI
14 P. Lopez-Crespo, A. Steuwer, T. Buslaps, Y. H. Tai, A. Lopez-Moreno, J. R. Yates and P. J. Withers, Int. J. Fatigue, 71, 11 (2015).   DOI
15 M. Croft, V. Shukla, N. M. Jisrawi, Z. Zhong, R. K. Sadangi, R. L. Holtz, P. S. Pao, K. Horvath, K. Sadananda, A. Ignatov, J. Skaritka and T. Tsakalakos, Int. J. Fatigue, 31, 1669 (2009).   DOI
16 E. W. Huang, S. Y. Lee, W. Woo and K. W. Lee, Metall. Mater. Trans. A, 43, 2785 (2012).   DOI
17 G. Choi, M. H. Lee, E. W. Huang, W. Woo and S. Y. Lee, Korean J. Mater. Res., 25, 690 (2015).   DOI
18 J. W. L. Pang, T. M. Holden and T. E. Mason, Acta Mater., 46, 1503 (1998).   DOI
19 S. Seo, E. W. Huang, W. Woo and S. Y. Lee, Int. J. Fatigue, 104, 408 (2017).   DOI
20 American Society for Testing and Materials (ASTM). Standard Test Method for Measurement of Fatigue Crack- Growth Rates; ASTM Standard E647-99; American Society for Testing Materials: West Conshohocken, PA, USA, 591 (2000).