| About this Abstract |
| Meeting |
MS&T21: Materials Science & Technology
|
| Symposium
|
New Frontiers in Physical Metallurgy of Steels
|
| Presentation Title |
Obtaining High Strength Ductility Combination by Quenching and Partitioning of Rolled Low Carbon Steel Sheet |
| Author(s) |
Alok Kumar Singh, Basudev Bhattacharya, Somjeet Biswas |
| On-Site Speaker (Planned) |
Alok Kumar Singh |
| Abstract Scope |
A rolled low carbon steel sheet (C < 0.06%, Mn < 2.0%, Si < 0.5% and Cr < 1.0%) was subjected to two-step heat treatment: (i) Quenching (Q)- austenitizing at 840°C for 1 hour and water quenching followed by Partitioning (P), and (ii) P- microstructure homogenization at below intercritical temperature at 600°C for 15 minutes and followed by water quenching. Dual-phase microstructure of ferrite- 35% martensite island morphology was obtained with moderate strength of 540 MPa with very high ductility. The enhanced ductility could be associated with the presence of CSL boundaries, transformation induced plasticity due to retained austenite. |