Scholar: Cameron Renteria
Major: Chemical Engineering
Faculty Mentors: Dr. Dev Chidambaram
Research Topic: Surface Characterization and Corrosion Behavior of Ti-6Al-4V Prepared By Advanced Laser Assisted Manufacturing Processes
Abstract: Titanium alloys have a wide range of industrial applications due to their material characteristics. More specifically, the titanium alloy Ti-6Al-4V is an appealing choice of material for use in orthopedic implants due to its high strength-to-weight ratio and favorable corrosion resistance. However, implants composed of Ti-6Al-4V may still experience metallurgical failures that result from, or are assisted by, corrosion processes. It is therefore of interest to research and manipulate the corrosion behavior of Ti-6Al-4V in order to develop more viable implant materials. In this work, a novel two-step laser processing procedure is proposed, in which selective laser sintering/melting is coupled with laser shock peening to prepare metal matrix nanocomposite coating layers and modify surface microstructures for enhanced corrosion resistance. The corrosion behavior of Ti-6Al-4V will be evaluated through potentiodynamic corrosion testing using Ringer's solution as the simulated body fluid followed by ICP solution analysis. Surface characterization of unprocessed Ti-6Al-4V and processed Ti-6Al-4V will be completed in an attempt to understand the surface/solution interface and how it relates to the anticipated variation in corrosion behavior as a result of the two-step manufacturing process. The following methods will be used in surface characterization: SEM, XRD, Raman spectroscopy, and XPS analysis. Preliminary results will be presented and discussed.
New Scholar: 2017 cohort