| About this Abstract |
| Meeting |
MS&T24: Materials Science & Technology
|
| Symposium
|
Additive Manufacturing of Titanium-based Materials: Processing, Microstructure and Material Properties
|
| Presentation Title |
Effect of Nitrogen Environment In-Situ Laser Remelting Over the Corrosion and Wear Behaviour of Additive Manufactured Ti6Al4V |
| Author(s) |
Ankit Porwal, Cheruvu Siva Kumar, Santanu Dhara |
| On-Site Speaker (Planned) |
Ankit Porwal |
| Abstract Scope |
The additive-manufactured Ti6Al4V alloy parts exhibit mild corrosion resistance whenever exposed to isotonic solution. The paper discusses the effect of in-situ laser remelting of additively manufactured Ti6Al4V under a nitrogen environment on its surface corrosion and tribological properties. The nitrogen gas used for the remelting is derived from the air using the inbuilt nitrogen extractor. The top surface of the additively built Ti6Al4V substrates remelted with different laser energy densities by varying the power and scanning speed of the laser. Remelted samples were tested for potential dynamic activity with simulated body fluid (SBF) solution and wear. The outcomes show that the sample treated with lower scanning speed significantly increased corrosion resistance compared to the other remelted samples. The wear analysis shows the remelted samples have a better wear rate than untreated ones. The modulus of elasticity also increases significantly near the remelted surface due to changes in microstructure. |