论文部分内容阅读
刘文中,关于贝氏体形成机制,包括形核过程的文献很少被引述。作者(刘等)的主要论点为贝氏体铁素体以无扩散、非切变机制在奥氏体内贫碳区形核,并未引述形成贫碳区的必要条件。本文作者强调,在钢及铜合金中,不可能由Spinodal分解和位错偏聚形成贫溶质区。刘等的理念未得到先进理论观点和精细实验结果的支持。在刘文中,据此对临界核心大小和形核能的计算并无显著意义,期望青年学者对贝氏体相变机制作进一步研究。
Liu Wenzhong, the literature on bainite formation mechanisms, including the nucleation process, is seldom cited. The main argument by the author (Liu et al.) Is that bainitic ferrite nucleates in lean carbon in austenite in a non-diffusive, non-shear-resistant mechanism and does not cite the necessary conditions for the formation of a lean carbon zone. The authors emphasize that in steel and copper alloys, it is impossible to form lean solute regions by Spinodal decomposition and dislocation segregation. Liu et al’s philosophy has not been advanced theoretical point of view and the results of fine experimental support. According to Liu Wenzhong, there is no significant meaning for the calculation of critical core size and nucleation energy. Young scholars are expected to make further study on the mechanism of bainite transformation.