A calculation of partitional local equilibrium/negligible partitional local equilibrium boundaries in Fe-C-X systems

作者：Sheng G; Yang Z G^*

来源：Materials Letters, 2008, 62(12-13): 1933-1936.

DOI：10.1016/j.matlet.2007.10.060

• thermodynamics
• kinetics
• metals and alloys
• PLE/NPLE boundary

Local equilibrium theory has long been employed to explain the thermodynamics and kinetics of proeutectoid ferrite transformation in Fe-C-X systems. The growth kinetics of proeutectoid ferrite is decided by the diffusion behavior of the alloy element X during transformation. One of the key issues in application of this theory is the theoretical calculation and experiment determination of the partitional local equilibrium/negligible partitional local equilibrium boundary (PLENPLE transition temperature). In this study, we developed a simple analytic method to calculate the PLENPLE boundary. With this method, the PLE/NPLE boundaries in Fe - C - Mn and Fe - C - Ni systems are successfully computed and the results agree well with the formerly reported experimental results.

• 出版日期2008-4-30
• 单位清华大学