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Title: Shape memory effect associated with a deformation at a temperature just below A[sub S] in a Fe-Mn-Cr-Si-Ni shape memory alloy

Abstract

The shape memory effect of Fe-Mn based shape memory alloys is due to the formation of stress-induced [var epsilon]-martensite by deformation and to its reversion by heating over A[sub f], which permit it to recover a part of the original shape. The shape memory effect is directly associated with the [gamma][yields][var epsilon] transformation. For this reason, the authors have established the best conditions to induce the [var epsilon]-martensite inside an austenitic matrix: the deformation must take place at a temperature close to the M[sub s]. It has been established that a deformation made at a higher temperature degrades the shape memory effect. The purpose of this paper is to evaluate the shape memory effect in the case of a deformation applied at a relatively high temperature (just below A[sub s]) on samples containing a high volume fraction of [var epsilon]-martensite before the deformation. It is shown that an other mechanism of shape memory effect occurs in these conditions and allows to reach an interesting shape memory effect ([approximately]2%).

Authors:
;  [1]
  1. G.E.M.P.P.M., Villeurbanne (France)
Publication Date:
OSTI Identifier:
7108837
Resource Type:
Journal Article
Journal Name:
Scripta Metallurgica et Materialia; (United States)
Additional Journal Information:
Journal Volume: 31:1; Journal ID: ISSN 0956-716X
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; CHROMIUM ALLOYS; DEFORMATION; SHAPE MEMORY EFFECT; IRON BASE ALLOYS; MANGANESE ALLOYS; NICKEL ALLOYS; SILICON ALLOYS; CRYSTAL-PHASE TRANSFORMATIONS; EXPERIMENTAL DATA; ALLOYS; DATA; INFORMATION; IRON ALLOYS; NUMERICAL DATA; PHASE TRANSFORMATIONS; 360102* - Metals & Alloys- Structure & Phase Studies; 360103 - Metals & Alloys- Mechanical Properties

Citation Formats

Federzoni, L, and Guenin, G. Shape memory effect associated with a deformation at a temperature just below A[sub S] in a Fe-Mn-Cr-Si-Ni shape memory alloy. United States: N. p., 1994. Web. doi:10.1016/0956-716X(94)90090-6.
Federzoni, L, & Guenin, G. Shape memory effect associated with a deformation at a temperature just below A[sub S] in a Fe-Mn-Cr-Si-Ni shape memory alloy. United States. https://doi.org/10.1016/0956-716X(94)90090-6
Federzoni, L, and Guenin, G. Fri . "Shape memory effect associated with a deformation at a temperature just below A[sub S] in a Fe-Mn-Cr-Si-Ni shape memory alloy". United States. https://doi.org/10.1016/0956-716X(94)90090-6.
@article{osti_7108837,
title = {Shape memory effect associated with a deformation at a temperature just below A[sub S] in a Fe-Mn-Cr-Si-Ni shape memory alloy},
author = {Federzoni, L and Guenin, G},
abstractNote = {The shape memory effect of Fe-Mn based shape memory alloys is due to the formation of stress-induced [var epsilon]-martensite by deformation and to its reversion by heating over A[sub f], which permit it to recover a part of the original shape. The shape memory effect is directly associated with the [gamma][yields][var epsilon] transformation. For this reason, the authors have established the best conditions to induce the [var epsilon]-martensite inside an austenitic matrix: the deformation must take place at a temperature close to the M[sub s]. It has been established that a deformation made at a higher temperature degrades the shape memory effect. The purpose of this paper is to evaluate the shape memory effect in the case of a deformation applied at a relatively high temperature (just below A[sub s]) on samples containing a high volume fraction of [var epsilon]-martensite before the deformation. It is shown that an other mechanism of shape memory effect occurs in these conditions and allows to reach an interesting shape memory effect ([approximately]2%).},
doi = {10.1016/0956-716X(94)90090-6},
url = {https://www.osti.gov/biblio/7108837}, journal = {Scripta Metallurgica et Materialia; (United States)},
issn = {0956-716X},
number = ,
volume = 31:1,
place = {United States},
year = {1994},
month = {7}
}