On the relation between the matensite start stress and the temperature in single crystalline Cu-11.5wt%Al-5.0wt%Ni shape memory alloy

T. Y. Elrasasi, L. Daróczi, D. Beke

Research output: Chapter in Book/Report/Conference proceedingConference contribution

1 Citation (Scopus)

Abstract

General form of the well known-relation between the critical stress, necessary to start/finish martensite/austenite formation, and the test temperature is simply and plausibly obtained from our local equilibrium model of phase transformation [1], and compared to the classical forms of the Clausius-Clapeyron relation. Although in general, first of all because of the stress and temperature dependence of the transformation strain, εtr, the above relations are not inevitably linear, in most of the cases linear functions were observed. Using the results of our experiments carried out on single crystalline Cu-11.5wt%Al-5.0wt%Ni samples for the strain stress hysteretic loops at constant temperatures [2], the slopes of these functions are analyzed on the basis of the relations obtained and it is shown that these are different due to different stress dependence of the elastic energy contributions.

Original languageEnglish
Title of host publicationMaterials Science Forum
Pages399-404
Number of pages6
Volume659
DOIs
Publication statusPublished - 2010
Event7th Hungarian Conference on Materials Science - Balatonkenese, Hungary
Duration: Oct 11 2009Oct 13 2009

Publication series

NameMaterials Science Forum
Volume659
ISSN (Print)02555476

Other

Other7th Hungarian Conference on Materials Science
CountryHungary
CityBalatonkenese
Period10/11/0910/13/09

Fingerprint

shape memory alloys
Shape memory effect
Crystalline materials
critical loading
austenite
martensite
Temperature
phase transformations
temperature
Martensite
Austenite
slopes
temperature dependence
Phase transitions
energy
Experiments

Keywords

  • Clausius-Clapeyron relation
  • Cu-11.5w%Al-5.0wt%Ni alloy
  • Shape memory
  • Transformation temperatures and stresses

ASJC Scopus subject areas

  • Materials Science(all)
  • Condensed Matter Physics
  • Mechanical Engineering
  • Mechanics of Materials

Cite this

On the relation between the matensite start stress and the temperature in single crystalline Cu-11.5wt%Al-5.0wt%Ni shape memory alloy. / Elrasasi, T. Y.; Daróczi, L.; Beke, D.

Materials Science Forum. Vol. 659 2010. p. 399-404 (Materials Science Forum; Vol. 659).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Elrasasi, TY, Daróczi, L & Beke, D 2010, On the relation between the matensite start stress and the temperature in single crystalline Cu-11.5wt%Al-5.0wt%Ni shape memory alloy. in Materials Science Forum. vol. 659, Materials Science Forum, vol. 659, pp. 399-404, 7th Hungarian Conference on Materials Science, Balatonkenese, Hungary, 10/11/09. https://doi.org/10.4028/www.scientific.net/MSF.659.399
@inproceedings{8faab292f85d440494be376e415e96fa,
title = "On the relation between the matensite start stress and the temperature in single crystalline Cu-11.5wt{\%}Al-5.0wt{\%}Ni shape memory alloy",
abstract = "General form of the well known-relation between the critical stress, necessary to start/finish martensite/austenite formation, and the test temperature is simply and plausibly obtained from our local equilibrium model of phase transformation [1], and compared to the classical forms of the Clausius-Clapeyron relation. Although in general, first of all because of the stress and temperature dependence of the transformation strain, εtr, the above relations are not inevitably linear, in most of the cases linear functions were observed. Using the results of our experiments carried out on single crystalline Cu-11.5wt{\%}Al-5.0wt{\%}Ni samples for the strain stress hysteretic loops at constant temperatures [2], the slopes of these functions are analyzed on the basis of the relations obtained and it is shown that these are different due to different stress dependence of the elastic energy contributions.",
keywords = "Clausius-Clapeyron relation, Cu-11.5w{\%}Al-5.0wt{\%}Ni alloy, Shape memory, Transformation temperatures and stresses",
author = "Elrasasi, {T. Y.} and L. Dar{\'o}czi and D. Beke",
year = "2010",
doi = "10.4028/www.scientific.net/MSF.659.399",
language = "English",
isbn = "0878492356",
volume = "659",
series = "Materials Science Forum",
pages = "399--404",
booktitle = "Materials Science Forum",

}

TY - GEN

T1 - On the relation between the matensite start stress and the temperature in single crystalline Cu-11.5wt%Al-5.0wt%Ni shape memory alloy

AU - Elrasasi, T. Y.

AU - Daróczi, L.

AU - Beke, D.

PY - 2010

Y1 - 2010

N2 - General form of the well known-relation between the critical stress, necessary to start/finish martensite/austenite formation, and the test temperature is simply and plausibly obtained from our local equilibrium model of phase transformation [1], and compared to the classical forms of the Clausius-Clapeyron relation. Although in general, first of all because of the stress and temperature dependence of the transformation strain, εtr, the above relations are not inevitably linear, in most of the cases linear functions were observed. Using the results of our experiments carried out on single crystalline Cu-11.5wt%Al-5.0wt%Ni samples for the strain stress hysteretic loops at constant temperatures [2], the slopes of these functions are analyzed on the basis of the relations obtained and it is shown that these are different due to different stress dependence of the elastic energy contributions.

AB - General form of the well known-relation between the critical stress, necessary to start/finish martensite/austenite formation, and the test temperature is simply and plausibly obtained from our local equilibrium model of phase transformation [1], and compared to the classical forms of the Clausius-Clapeyron relation. Although in general, first of all because of the stress and temperature dependence of the transformation strain, εtr, the above relations are not inevitably linear, in most of the cases linear functions were observed. Using the results of our experiments carried out on single crystalline Cu-11.5wt%Al-5.0wt%Ni samples for the strain stress hysteretic loops at constant temperatures [2], the slopes of these functions are analyzed on the basis of the relations obtained and it is shown that these are different due to different stress dependence of the elastic energy contributions.

KW - Clausius-Clapeyron relation

KW - Cu-11.5w%Al-5.0wt%Ni alloy

KW - Shape memory

KW - Transformation temperatures and stresses

UR - http://www.scopus.com/inward/record.url?scp=78649947503&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=78649947503&partnerID=8YFLogxK

U2 - 10.4028/www.scientific.net/MSF.659.399

DO - 10.4028/www.scientific.net/MSF.659.399

M3 - Conference contribution

AN - SCOPUS:78649947503

SN - 0878492356

SN - 9780878492350

VL - 659

T3 - Materials Science Forum

SP - 399

EP - 404

BT - Materials Science Forum

ER -