| About this Abstract |
| Meeting |
13th International Conference on the Technology of Plasticity (ICTP 2021)
|
| Symposium
|
13th International Conference on the Technology of Plasticity (ICTP 2021)
|
| Presentation Title |
Influence of Quenching Temperature on Microstructure and Mechanical Properties in Cu-containing Quenching and Partitioning (Q&P) Steels |
| Author(s) |
Xu Wang, Yunbo Xu, Fei Peng, Xingli Gu, Jianping Li, Yuanhua Li |
| On-Site Speaker (Planned) |
Xu Wang |
| Abstract Scope |
The present work aims to investigate the effect of quenching temperature on microstructure and mechanical properties in a Cu-containing Q&P steel. Thermodynamic simulation was used to develop a predictive methodology to determine the optimal quenching temperature, at which the maximum fraction of retained austenite was obtained. The results showed that the amount of tempered martensite decreased gradually and the fraction of M/A increased progressively with increasing the quenching temperature from 180 °C to 240 °C. The tensile strength of investigated steel decreased gradually, whilst total elongation increased firstly followed by decreasing. Excellent mechanical properties with yield strength of 779MPa, tensile strength of 1124MPa, total elongation of 22.4% and UTS×TEL of 25178MPa•% were obtained after Q&P treatment with quenching temperature of 200 °C. The corresponding microstructure was composed of ferrite, tempered martensite, bainite, fresh martensite and retained austenite. The results were consistent with the optimum quenching temperature simulated by thermodynamics. |
| Proceedings Inclusion? |
Definite: At-meeting proceedings |