Ni-Ti形状记忆合金的本构关系综述

A Summary of the Constitutive Relations of Ni-Ti Shape Memory Alloy

形状记忆合金是具有比较广泛应用前景的一类智能材料系统,在温度和应力条件不同的情况下最基本的宏观响应特性就是相变超弹性和形状记忆特性。随着形状记忆合金本构模型近年来的快速发展,在各工程领域中深入开展了相关研究及应用。在记忆合金中Ni-Ti合金目前的研究及应用最为广泛,国内外研究重点和难点主要是描述Ni-Ti形状记忆合金超弹性和记忆效应的本构模型。本研究综述了Ni-Ti形状记忆合金的本构关系的进展。

Shape memory alloys are a type of smart material system with relatively broad application prospects.The most basic macro response characteristics under different temperature and stress conditions are phase transition superelasticity and shape memory characteristics.With the rapid development of constitutive models of shape memory alloys in recent years,relevant research and applications have been deeply carried out in various engineering fields.Among the memory alloys,NiTi alloys are currently the most widely researched and applied.The research focus and difficulties at home and abroad are mainly the constitutive models describing the superelasticity and memory effect of NiTi shape memory alloys.This study reviews the progress of the constitutive relationship of NiTi shape memory alloys.