Title

Crevice and pitting corrosion of alloy implant stainless steels.

Faculty Advisor

Sisson, Richard D.

Abstract

Corrosion testing was carried out for 34 days in three simulated physiological solutions to investigate and replicate crevice and pitting corrosion of canine fracture fixation plates. Change in mass per surface area per day was calculated. Duplex, in Ringer's solution (mass change rate of 4.48x10 g/mm?/day), was most susceptible to corrosion, while annealed 316L produced the highest collective mass-change. Surface imperfections and soft grains make annealed 316L more susceptible to corrosion. Cold-worked 316L proved the best choice of our three samples for fracture fixation plates.

Publisher

Worcester Polytechnic Institute

Date Accepted

January 2006

Major

Biomedical Engineering

Project Type

Major Qualifying Project

Accessibility

Restricted-WPI community only

Advisor Department

Mechanical Engineering

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