Influence of stresses on the kinetics of pearlitic transformation during continuous cooling |
| |
| Affiliation: | 1. Key Laboratory of Mechanics on Disaster and Environment in Western China attached to the Ministry of Education of China, Lanzhou University, Lanzhou, Gansu 730000, PR China;2. Department of Mechanics and Engineering Sciences, College of Civil Engineering and Mechanics, Lanzhou University, Lanzhou, Gansu 730,000, PR China;1. Engineering and Manufacturing Technologies Department, DACC, New Mexico State University, Las Cruces, NM 88003, USA;2. Department of Mechanical Engineering, Zagazig University, Zagazig 44511, Egypt |
| |
| Abstract: | The effect of stress/strain on the kinetics of pearlitic transformation is reviewed. Our results on the pearlitic transformation of an eutectoïd carbon steel under applied uniaxial tensile stresses are analyzed. From these results, we have modelized the effect of the internal stresses, generated during cooling in a solid specimen, on the transformation kinetics. This model is based on a shifting in time of the IT curves of the steel as a function of the internal stress condition (deviatoric part of the stress tensor). A coupled thermal, phase transformation, stress calculation, which includes this model, is applied to the cooling of an eutectoïd carbon steel cylinder. The calculated results show that the internal stresses have an important effect on the kinetics of transforamtion and on the temperature evolutions. The calculated cooling laws are compared with those obtained by experiment and the validity of the model is discussed. |
| |
| Keywords: | |
| 本文献已被 ScienceDirect 等数据库收录！ |
|
