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Current research
Assessment of dislocation density in asymmetrically cyclic loaded non-conventional stainless steel using X-ray diffraction profile analysis, R. Kishor, L. Sahu, K. Dutta* and A. K. Mondal Department of Metallurgical and Materials Engineering

A
symmetric stress-controlled fatigue i.e., ratcheting behaviour of a stainless steel has been investigated with varying mean stresses, stress amplitudes and number of cycles at room temperature. The X-ray diffraction profile analysis using modified Williamson–Hall equation has been carried out in order to
estimate the dislocation densities in the specimens subjected to ratcheting deformation. Increase in strain accumulation has been explained by increase in dislocation densities in the ratcheted specimens and a correlation between the strain produced by ratcheting deformation and the estimated dislocation density has been established. More details in: Materials Science and Engineering: A 598 (2014) 299-303 (List of Research)

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