Comprehensive understanding of the energy change of hierarchic structural materials by the analogy of the probability resonance and its application to materials design

采用基于系统自由能的相场法，研究了镍基高温合金和耐热钢这两种具有层次化结构的合金的突然组织演变。在本研究中，还利用位错密度等实验测量方法估算了具有复杂等级结构的铁素体耐热钢的系统自由能。此外，通过相场模拟可以构造出与真实板条马氏体组织相似的板条马氏体组织。

Microstructural evolution occurring suddenly in nickel based superalloys and heat resistant steels, both of which have the hierarchic structure, was investigated by the phase-field method based on system free energies of them. In this investigation, experimental measurements such as dislocation density were also employed for estimation of the system free energies in ferritic heat resistant steels having a complicated hierarchic structure. Furthermore, the lath martensite structure similar to the real one can be constructed by the phase field simulation.