|About this Abstract
||2017 TMS Annual Meeting & Exhibition
||Advanced Characterization Techniques for Quantifying and Modeling Deformation Mechanisms
||Microstructure Characterisation of Drilled Chips of 316L Stainless Steel
||Guocai Chai, Raveendra Siriki, Fritz Alum Yah
|On-Site Speaker (Planned)
The present study was aimed at understanding the deformation and damage behaviors of drilled chips of 316L stainless steel. The analyzed chips were noticed to be curled/spiraled containing several rotations. Further, the electron microscopy analysis showed that the cross-section of all the rotations contains segments and these are separated by adiabatic shear bands (ASBs)/primary shear bands (PSBs). The heights of peaks and valleys of the segments were observed to increase significantly from inner to outer rotations. This might be due to increase in tool wear. Furthermore, the SEM analysis revealed presence of significant numbers of cracks. The cracks were observed at the regions where ASBs were originated and also along the ASBs. The microstructures in these regions seem to significantly refined/deformed. The severe deformation might have decreased the ductility and further lead to cracking.
||Planned: Supplemental Proceedings volume