Evaluation of Chip Morphology During Machining of ECAE Titanium Conference Paper uri icon


  • © 2016 IEEE. Titanium (Ti) and its alloys are currently used extensively in medical and dental applications due to their superior mechanical and physical properties compared to coarse-grained (CG) Ti. However, the presence of alloying elements such as aluminum and vanadium has raised concerns about Ti alloy biocompatibility. Fortunately, equal channel angular extrusion (ECAE)-processed ultrafine-grained (UFG) Ti, which has a grain structure on the submicron level, has emerged as a viable alternative. The substantial reduction in grain size results in distinct material property differences, which may affect the dynamic material behavior. In this study, the chip morphology, which is an indication of the dynamic behavior of materials, of ECAE-processed Ti after machining is evaluated and compared with that of CG Ti. The chip morphology for both Ti materials is found to transform as the cutting speed increases while ECAE Ti has a different shear band spacing, indicating that ECAE Ti responds differently to deformation when compared with CG Ti.

author list (cited authors)

  • Davis, B., Hartwig, K. T., Liang, S. Y., & Huang, Y.

citation count

  • 2

publication date

  • August 2016