THE MICROSTRUCTURAL MODEL OF MECHANICAL BEHAVIOR OF A SHAPE-MEMORY ALLOY

被引：3

作者：

Mishustin, I. V. ^{[1
]}

Movchan, A. A. ^{[1
]}

机构：

[1] Russian Acad Sci, Fed Govt Budgetary Sci Inst, Inst Appl Mech, Moscow, Russia

来源：

NANOSCIENCE AND TECHNOLOGY-AN INTERNATIONAL JOURNAL | 2016年 / 7卷 / 01期

基金：

俄罗斯基础研究基金会;

关键词：

shape-memory alloys; nanostructures; nonlinear deformation; phase transition; structural transition; reversing shape memory; model;

D O I：

10.1615/NanomechanicsSciTechnolIntJ.v7.i1.50

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

A nonlinear model of deformation of a shape-memory alloy (SMA) is presented, discussing characteristics of not only the representative volume, but also individual sets of nano- and microsized martensitic formations in it. This allows taking into account the differences in their behavior in the case of structural transitions (martensitic detwinning and reorientation) and expressing correctly deformations of reverse phase transition, as well as describing the reversing shape memory effect. A simplified model for nanostructured SMAs is proposed. Analytical and numerical solutions of the problem of reversing shape memory for uniaxial tension-compression of a rod, taking into account the structural transition in a change of the load sign and interruption of direct transformation.

引用

页码：77 / 95

页数：19

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