On the Formation of Martensite

本研究探讨了马氏体的形核，重点研究了母相的预马氏体性质。我们感兴趣的是马氏体动力学和马氏体成核的频率比非弹性中子散射所能达到的要慢得多。通过内摩擦、应力松弛和时间分辨x射线散射研究的应用，实验确定了与低频马氏体变形有关的动力学信息。选择表现出前马氏体异常的金属合金进行实验。

This research explores the nucleation of martensite with emphasis on premartensitic properties of the parent phase. Of interest are premartensitic dynamics and the nucleation of martensite at frequencies considerably slower than accessible by inelastic neutron scattering. Dynamical information pertinent to the deformation of martensite in the lower frequency regime is experimentally determined through application of internal friction, stress relaxation, and time-resolved X-ray scattering studies. Metal alloys which show premartensitic anomalies are selected for the experiments.