马氏体相变的界面吸引子模型

Interfacial attractor model of martensitic transformation

从经典的马氏体相界面运动方程出发,利用相平面分析,证明具有界面摩擦的马氏体相界面是吸引子,与理想的马氏体相界面的孤立子特征不同.通过对非线性方程解的分析,得到发生应力诱发马氏体相变的相界面趋向为焦点型定常吸引子,而热诱发相变的马氏体相界面趋向为结点型定常吸引子,因此考虑界面摩擦后相界面的运动与理想相界面的运动具有不同的非线性特征、

The interface of the martensite/parent was suggested as the attractor based on the phase plane analyses from the classical equation of interfacial motion, which is different from the soliton model of the ideal martensite/parent interface. The solutions of the equation of motion indicated that the interface of the stress-induced martensitic transformation tended to be the focus-like steady attractor and the thermal-induced martensitic transformation to be the joint-like steady attractor. So the interfacial motion including the friction exhibits an apparently different nonlinear character from the interfacial motion without friction.