相界面能在马氏体相变中的作用：晶格蒙特卡罗模拟
The role of phase interface energy in martensitic transformations: a lattice Monte-Carlo simulation
摘要：
为了研究马氏体相变，我们使用了一个基于统计力学的细观力学模型。采用晶格蒙特卡罗模拟和实际材料性能的记忆合金（SMA），我们调查的外部应力，温度，奥氏体和马氏体相之间的界面能的相变动力学和有效材料的顺应性的综合影响。一维模型预测以及实验观察到的马氏体相变的许多功能。特别地，我们研究了界面能对相变宽度和有效柔度的影响。从理论上讲，所获得的结果可能有助于设计新的SMA更敏感的智能结构和更有效的阻尼系统。
英文摘要：
To study martensitic phase transformation we use a micromechanical model based on statistical mechanics. Employing lattice Monte-Carlo simulations and realistic material properties for shape-memory alloys (SMA), we investigate the combined influence of the external stress, temperature, and interface energy between the austenitic and martensitic phase on the transformation kinetics and the effective material compliance. The one-dimensional model predicts well many features of the martensitic transformation that are observed experimentally. Particularly, we study the influence of the interface energy on the transformation width and the effective compliance. In perspective, the obtained results might be helpful for the design of new SMAs for more sensitive smart structures and more efficient damping systems.
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