Abstract
Equibiaxial compressive residual stress is introduced into steel after peening in order to improve both its resistance to stress corrosion cracking and its fatigue strength. Thus, a nondestructive and relatively quick method to evaluate the equibiaxial compressive residual stress in a surface layer modified by peening is required in order to evaluate the peening intensity needed to enhance the integrity of structural components. The purpose of the work reported here is to establish an eddy current method to evaluate equibiaxial compressive stress which can be applied to the residual stress introduced into various non-ferromagnetic materials after peening. To this end, hydraulic jacks were used to elastically deform specimens of the austenitic stainless steel, Japanese Industrial Standard (JIS) SUS316L, thereby introducing an equibiaxial compressive stress. In the case of SUS316L steel, stress-induced martensitic transformation is rare. The electromagnetic properties of these specimens were then measured. In addition, the eddy current signals from peened specimens were compared with these. The results demonstrate that it is possible to establish a method for evaluating the equibiaxial stress utilizing eddy current signals.
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Masaki, K., Ochi, Y., Ishii, A.: Fatigue properties of hard shot-peened SUS316L—behavior of hardness distribution, residual stress distribution and fatigue cracks during the fatigue process. Mater. Sci. Res. Int. 4(3), 200–205 (1998)
Soyama, H.: Improvement of fatigue strength by using cavitating jets in air and water. J. Mater. Sci. 42(16), 6638–6641 (2007)
Sano, Y., Obata, M., Kubo, T., Mukai, N., Yoda, M., Masaki, K., Ochi, Y.: Retardation of crack initiation and growth in austenitic stainless steels by laser peening without protective coating. Mater. Sci. Eng. A 417(1–2), 334–340 (2006)
Soyama, H.: Introduction of compressive residual stress using a cavitating jet in air. Trans. ASME J. Eng. Mater. Technol. 126(1), 123–128 (2004)
Blodgett, M.P., Nagy, P.B.: Eddy current assessment of near-surface residual stress in shot-peened nickel-base superalloys. J. Nondestruct. Eval. 23(3), 107–123 (2004)
Zhou, J., Chen, K., Dover, W.D.: Uniform ac field in anisotropic bar and alternating current potential difference stress measurement. J. Phys. D, Appl. Phys. 32(14), 1600–1604 (1999)
Blaow, M., Evans, J.T., Shaw, B.A.: The effect of microstructure and applied stress on magnetic Barkhausen emission in induction hardened steel. J. Mater. Sci. 42(12), 4364–4371 (2007)
Shen, Y., Lee, C., Lo, C.C.H., Nakagawa, N., Frishman, A.M.: Conductivity profile determination by eddy current for shot-peened superalloy surfaces toward residual stress assessment. J. Appl. Phys. 101(1), 014907 (2007)
Abu-Nabah, B.A., Nagy, P.B.: High-frequency eddy current conductivity spectroscopy for residual stress profiling in surface-treated nickel-base superalloys. NDT E Int. 40(5), 405–418 (2007)
Sekine, Y., Soyama, H.: Evaluation of the surface of alloy tool steel treated by cavitation shotless peening using an eddy current method. Surf. Coat. Technol. 203(16), 2254–2259 (2009)
Blaszkiewicz, M., Albertin, L., Junker, W.: The eddy current technique for determining residual stresses in steels. Mater. Sci. Forum 210–213, 179–185 (1996)
Kittel, C.: Introduction to Solid State Physics, 8th edn. Wiley, New York (2005), pp. 133–159
Davis, J.R. (ed.): ASM Specialty Handbook: Stainless Steels. ASM International, Materials Park (1994),
Soyama, H., Kikuchi, T., Nishikawa, M., Takakuwa, O.: Introduction of compressive residual stress into stainless steel by employing a cavitating jet in air. Surf. Coat. Technol. 205(10), 3167–3174 (2011)
Libby, H.L.: Introduction to Electromagnetic Nondestructive Test Methods. Wiley-Interscience, New York (1971), pp. 18–77
Cheng, C.C., Dodd, C.V., Deeds, W.E.: General analysis of probe coils near stratified conductors. Int. J. Nondestruct. Test., 3(2), 109–130 (1971)
Li, Y., Theodoulidis, T., Tian, G.Y.: Magnetic field-based eddy-current modeling for multilayered specimens. IEEE Trans. Magn. 43(11), 4010–4015 (2007)
Li, Y., Tian, G.Y., Simm, A.: Fast analytical modeling for pulsed eddy current evaluation. NDT E Int. 41(6), 477–483 (2008)
Theodoulidis, T., Kriezis, E.: Series expansions in eddy current nondestructive evaluation models. J. Mater. Process. Technol. 161(1–2), 343–347 (2005)
Bridgman, P.W.: The Physics of High Pressure. Dover, New York (1970), pp. 257–294
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Sekine, Y., Soyama, H. Evaluation of Equibiaxial Compressive Stress Introduced into Austenitic Stainless Steel Using an Eddy Current Method. J Nondestruct Eval 31, 99–107 (2012). https://doi.org/10.1007/s10921-011-0125-5
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DOI: https://doi.org/10.1007/s10921-011-0125-5