Understanding the effect of uniaxial tensile strain on the early stages of sensitization in \AISI\ 304 austenitic stainless steel
By P.S. Chowdhury and S.K. Guchhait and P.K. Mitra and P. Mukherjee and N. Gayathri and M.K. Mitra
Published in Materials Chemistry and Physics
NULL
2015
Abstract
In the present study, an attempt has been made to understand the effect of different competing mechanisms controlling the overall degree of sensitization (DOS) of deformed austenitic stainless steel at the early stage of sensitization. The Double Loop Electrochemical Potentiokinetic Reactivation (DL-EPR) studies were performed to characterize the Degree of Sensitization (DOS) as a function of both pre-defined strain and sensitization temperature. X-ray Diffraction (XRD) and Scanning Electron Microscopy (SEM) were used to explain the phenomena qualitatively. A non monotonous behaviour in the variation of \DOS\ has been observed with deformation and sensitization temperature. The presence of Deformation Induced Martensites (DIM) and their transformation into tempered martensites (?
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