| About this Abstract |
| Meeting |
MS&T23: Materials Science & Technology
|
| Symposium
|
Advancements in Steel Structural Refinement
|
| Presentation Title |
G-1: Effect of High Temperature Exposure on the Tensile Behavior of Carbide Free Bainitic Steel - An In-situ Study |
| Author(s) |
Kishore Sakthivel, Sourav Das, Suhrit Mula |
| On-Site Speaker (Planned) |
Kishore Sakthivel |
| Abstract Scope |
The article discusses the effects of temperature on the mechanical properties of a carbide-free bainitic steel during in-situ tensile testing. The tests were conducted at temperatures of 100℃ to 500℃, at 100℃ intervals. X-ray diffraction analysis revealed a reduction trend in the retained austenite content, with complete transformation to other phases observed at 500℃. TEM showed cementite precipitation at 300℃, with the precipitates coarsening from 5 nm to 30 nm at 500℃. Interestingly, the in-situ tensile tests showed improved yield and tensile strength at 300℃ compared to other temperatures. The strain hardening analysis were performed using different methods Ludwik and Voce showed a higher value of about ~0.5 for 300℃ sample compared to other samples. The retained austenite content decreased from 19% at room temperature to 14% at 300℃ due to its transformation into fine carbides visible in the matrix. |