Abstract
In this work, four low carbon steels with different contents of Mn and Ni were heat treated by quenching and partitioning (Q&P) cycles where high partitioning temperatures, in the range of 550 °C–650 °C, were applied. In order to elucidate the effect of applying these high partitioning temperatures with respect to more common Q&P cycles, the materials were also heat treated considering a partitioning temperature of 400 °C. The microstructure evolution during the Q&P cycles was studied by means of dilatometry tests. The microstructural characterization of the treated materials revealed that austenite retention strongly depended on the alloy content and partitioning conditions. It was shown that the occurrence of austenite reverse transformation (ART) in the partitioning stage in some of the alloys and conditions was a very effective mechanism to increase the austenite content in the final microstructure. However, the enhancement of tensile properties achieved by the application of high partitioning temperature cycles was not significant.
| Original language | English |
|---|---|
| Article number | 862 |
| Pages (from-to) | 1-17 |
| Number of pages | 17 |
| Journal | Metals |
| Volume | 10 |
| Issue number | 7 |
| DOIs | |
| Publication status | Published - 29 Jun 2020 |
Funding
This research was carried out in the framework of the HIGHQP project, which has received funding from the Research Fund for Coal and Steel under grant agreement no. 709855. This study reflects only the author’s views and the European Commission is not responsible for any use that may be made of the information contained therein. Funding: This research was carried out in the framework of the HIGHQP project, which has received funding from the Research Fund for Coal and Steel under grant agreement no. 709855. This study reflects only the author’s views and the European Commission is not responsible for any use that may be made of the information contained therein.
| Funders | Funder number |
|---|---|
| European Commission | |
| Research Fund for Coal and Steel | 709855 |
Keywords
- Austenite reverse transformation
- Austenite stabilization
- Mn and Ni influence
- Quenching and partitioning
Project and Funding Information
- Funding Info
- This research was carried out in the framework of the HIGHQP project, which has received funding from the Research Fund for Coal and Steel under grant agreement no. 709855. This study reflects only the author’s views and the European Commission is not responsible for any use that may be made of the information contained therein.