| About this Abstract |
| Meeting |
MS&T24: Materials Science & Technology
|
| Symposium
|
Austenite Formation and Decomposition V: A Symposium in Memory of Prof. Mats Hillert
|
| Presentation Title |
Effect of Vanadium Alloying on Pearlite Transformation |
| Author(s) |
Emmanuel De Moor, Addison Wong, Lawrence Cho |
| On-Site Speaker (Planned) |
Emmanuel De Moor |
| Abstract Scope |
The present contribution will investigate the effect of vanadium alloying on pearlite transformation kinetics. Prior work has shown that vanadium increases both the hardness and tensile strength of hypereutectoid steels. Industrial 1080 wire rod compositions with and without a vanadium addition were employed. Dilatometry and detailed microstructural characterization were conducted to detail alloying effects on microstructural evolution. Dilatometry was conducted to study cooperative growth kinetics and it was shown that vanadium slowed down pearlite transformation kinetics resulting in a refinement of the interlamellar spacing. Care was taken to minimize heat from recalescence in the experimentation. Proeutectoid grain boundary cementite formation was observed to be reduced with vanadium alloying. Atom probe tomography revealed substantial vanadium enrichment in cementite. |