PSI - Issue 5

G. Lesiuk et al. / Procedia Structural Integrity 5 (2017) 928–934 Lesiuk et al./ Structural Integrity Procedia 00 (2017) 000 – 000

934

7

number of cycles to failure in the group of specimens after exposition to current was higher than in case of the specimens not subjected to the current exposure (an average by about 11%). The scope of further research works is focused on evaluation of temperature changes and its influence on microstructure of material during the exposure to current. Another essential element will be the trial (statistically valid) of evaluating the impact of exposure to current on lifetime of specimens in the variable load conditions. The application perspectives of that phenomenon are also re lated with the possibility of “curing the cracks” in thin -wall metal structures – however it requires the well-established cognitive research. Acknowledgements 1. This work was financial supported by the Wroclaw University of Science and Technology – Department of Mechanics, Materials Science and Engineering internal, fundamental research program. 2. The publication has been prepared as a part of the Support Programme of the Partnership between Higher Education and Science and Business Activity Sector financed by City of Wroclaw. 3. The authors also acknowledge the Portuguese Science Foundation (FCT) for the financial support through the post-doctoral grant SFRH/BPD/107825/2015. Cohen, M. H., and C. S. Barrett. "Interaction of electrons with grain boundaries." Physical Review 95.4 (1954): 1094. Kaleta J., D. Lewandowski, P. Wiewiórski, "3D Magnetovision Scanner as a Tool for Investigation of Magnetomechanical Principles", Solid State Phenomena, Vol. 154, pp. 181-186, 2009a. Kaleta J., Wiewiórski P., Construction of magnetic scanner for application in experimental mechanics, 26th Danubia Adria Symposium on Advances in Experimental Mechanics, 23-26.09.2009, Leoben, Austria (2009b). Machlin E.S., Journal of applied physics 30 (1959) 1109 – 1110. Pilkey D. Stress concentration factors. A Wiley-Interscience Publication; 1997. Song H., Zhong-Jin Wang, Microcrack healing and local recrystallization in pre-deformed sheet by high density electropulsing, Materials Science and Engineering: A, Volume 490, Issues 1 – 2, 25 August 2008, Pages 1-6, ISSN 0921-5093. Sprecher A.F., S.L. Mannan, H. Conrad, Acta Metall. 34 (7) (1986) 1145 – 1162. Tang Y., Atsushi Hosoi, Yasuyuki Morita, Yang Ju, Restoration of fatigue damage in stainless steel by high-density electric current, International Journal of Fatigue, Volume 56, 2013, Pages 69-74, ISSN 0142-1123, Troitskii O.A., V.I. Likhtman, Akademiya nauk SSSR 148 (1963) 332 – 334. Wang Z., Hui Song, Effect of high-density electropulsing on microstructure and mechanical properties of cold-rolled TA15 titanium alloy sheet, Journal of Alloys and Compounds, Volume 470, Issue 1, 2009, Pages 522-530, ISSN 0925-8388. Zimniak, Z., and S. Ha nkiewicz. "Badania magnetyczne procesów tłoczenia blach." Obróbka Plastyczna Metali 17 (2006): 25 -31. References