| About this Abstract |
| Meeting |
MS&T23: Materials Science & Technology
|
| Symposium
|
Advances in Ferrous Metallurgy
|
| Presentation Title |
Effect of Intercritical Annealing Parameters on the Mechanical Properties of a Medium-Mn Third Generation Advanced High Strength Steel |
| Author(s) |
Kazi M.H. Bhadhon, Thomas Sydor, Ana P.D. Cardoso, Frank E. Goodwin, Joseph R. McDermid |
| On-Site Speaker (Planned) |
Kazi M.H. Bhadhon |
| Abstract Scope |
Recent research on medium-Mn steels has shown significant potential for achieving third generation advanced high strength steel (3G AHSS) target mechanical properties. However, successful adoption of these new steels by the automotive industry will depend on their processing compatibility with the industrial continuous galvanizing line (CGL). In that regard, a 0.2C-6Mn-1Al-1Si-0.5Cr (wt.%) medium-Mn steel with a martensitic starting microstructure was subjected to a range of CGL-compatible intercritical annealing heat treatments. The mechanical properties of the heat treated steels were determined by uniaxial tensile tests. Furthermore, interrupted tensile tests were conducted to determine the deformation-induced retained austenite transformation kinetics. The microstructural evolution of the heat treated steels was also analyzed across a variety of length scales. Overall, this contribution will evaluate the microstructural evolution and mechanical properties of the prototype medium-Mn steel within the context of determining a CGL-compatible thermal processing cycle that will result in target 3G AHSS properties. |