Correlating Effect of Temperature on Cyclic Plastic Deformation Behavior with Substructural Developments for Austenitic Stainless Steel
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Low-cycle fatigue experiments have been carried out at elevated and sub-zero temperatures. Corresponding effect on cyclic plasticity characterizing parameters such as cyclic hardening/softening and Masing behavior is compared for different loading conditions. Disparities in the fatigue life as well as the cyclic plastic behavior have been attributed to the phase transformations that largely obstruct the dislocation motion. Further, the changes in strains in the materials matrix have been quantified through misorientation studies, wherein clear demarcation in strain distributions due to fatigue loading at different temperatures was obtained and further correlated with the substructural alterations observed through transmission electron microscopy.
Keywordsdislocations EBSD fatigue martensite stainless steel
The authors are grateful to Dr. Mainak Ghosh and Dr. Bhupesh Mahato for helping in carrying out the transmission electron microscopy studies.
Conflict of interest
This is to certify that all authors have seen and approved the final version of the manuscript being submitted, and there is no conflict of interest.
- 6.K. Suzuki, J. Fukakura, and H. Kashiwaya, Cryogenic Fatigue Properties of 304L and 316L Stainless Steels Compared to Mechanical Strength And Increasing Magnetic Permeability, J. Test. Eval., 1998, 16, p 190–197Google Scholar
- 21.F. Ellyin, Fatigue Damage Crack Growth and Life Prediction. 1st ed., Chapman & Hall, 1997, ISBN 0 412 59600 8. p 61 [chapter 2]Google Scholar
- 28.S. Suwas and N.P. Gurao, Crystallographic Texture in Materials, J. Ind. Inst. Sci., 2008, 88, p 151–177Google Scholar
- 29.S.T. Wardle, L.S. Lin, A. Cetel, B.L. Adams, Orientation Imaging Microscopy: Monitoring Residual Stress Profiles in Single Crystals Using an Image-Quality Parameter, IQ. Proceedings of the Annual Meeting-Electron Microscopy Society of America, San Francisco Press, 1994, p 680Google Scholar
- 33.H. Mughrabi, Dislocation in fatigue. Dislocations and properties of real materials, M.H. Loretto, Ed., The institute of metals, London. 1985, p 244–262Google Scholar
- 34.T. Mura, H. Shirai, J.R. Weertman, The Elastic Energy of Dislocation Structure in Fatigued Metals, Proceedings of 2nd International Symposium and 7th Canadian Fracture Conference on Defects, Fracture and Fatigue, 1982, p 67–74Google Scholar