| About this Abstract |
| Meeting |
MS&T24: Materials Science & Technology
|
| Symposium
|
Advancements in Steel Structural Refinement
|
| Presentation Title |
ICME Development of a Novel, High-Strength Austenitic Steel |
| Author(s) |
Paul K. Lambert, Nicholas J. Jones, Colin Stewart, Keith Knipling, Eric Dau, Richard J. Gins, Matthew Draper, Charles Fisher |
| On-Site Speaker (Planned) |
Nicholas J. Jones |
| Abstract Scope |
Austenitic steels are attractive for a variety of structural applications because of their relatively high toughness, although their use can be limited by their generally low yield strengths. Currently, most of the strongest Austenitic alloys form precipitates by alloying with Ni, Mn, or Al, but the high concentrations required can make the alloys prohibitively expensive or difficult to manufacture. Recent research using an integrated computational materials engineering (ICME) approach has led to the development of a novel, hot-rolled steel that utilizes nanoscale vanadium carbide (VC) precipitates. After heat treatment, this steel exhibited yield strengths as high as 1 GPa while still maintaining reasonable ductility. This presentation will describe the microstructure evolution of this material during heat treatment and deformation, identifying key strengthening and toughening mechanisms which have been identified using advanced microscopy techniques. |