| About this Abstract |
| Meeting |
MS&T22: Materials Science & Technology
|
| Symposium
|
Resisting Degradation from the Environment: A Symposium Honoring Carolyn M. Hansson’s Research and Pioneering Experiences as a Woman in STEM
|
| Presentation Title |
Corrosion and Biocompatibility of 316L Stainless Steels Fabricated by Selective Laser Melting |
| Author(s) |
Erica Perry Murray |
| On-Site Speaker (Planned) |
Erica Perry Murray |
| Abstract Scope |
Surgical grade stainless steel, 316L was fabricated by selective laser melting at a laser power of 100 W where the laser scan speed was varied from 800 – 1200 mm/s resulting in samples with different microstructural features. Electrochemical impedance spectroscopy was used to characterize the corrosion behavior 316L samples during exposure to simulated body fluid (Locke’s solution) at approximately 37 °C over 15 days. The role of microstructure on corrosion of the 316L stainless steel samples in simulated body fluid was evaluated with respect to: pitting initiation and cessation, localized and intergranular corrosion, and passivation and repassivation kinetics. Also, biocompatibility was investigated on samples placed in 2D cultures of bone marrow related stem/stromal cells (MC3T3) to evaluate the toxic response of the 316L SLM samples. Coverage of MC3T3 on 316L surfaces was correlated with electrochemical corrosion data. |