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Titolo: RELATIONSHIP BETWEEN VOLUME FRACTION OF STRAININDUCED MARTENSITE UNDER TENSION AND ELECTRICALRESISTIVITY IN A TINI SMA WIRE
Autore: TAKIMOTO A;
 Indirizzi:
 YAMAGUCHI UNIV UBE YAMAGUCHI 755 JAPAN
 Titolo Testata:
 Journal de physique. IV
fascicolo: C8,
volume: 5,
anno: 1995,
parte:, 2
pagine: 599  604
 SICI:
 11554339(1995)5:C8<599:RBVFOS>2.0.ZU;2H
 Fonte:
 ISI
 Lingua:
 ENG
 Tipo documento:
 Article
 Natura:
 Periodico
 Settore Disciplinare:
 Science Citation Index Expanded
 Citazioni:
 8
 Recensione:
 Indirizzi per estratti:



 Citazione:
 A. Takimoto, "RELATIONSHIP BETWEEN VOLUME FRACTION OF STRAININDUCED MARTENSITE UNDER TENSION AND ELECTRICALRESISTIVITY IN A TINI SMA WIRE", Journal de physique. IV, 5(C8), 1995, pp. 599604
Abstract
Relationships among plastic strain, volume fraction of SIM, stressstrain curve, electrical resistivity of a Ti . 50.5 at.% Ni mire are investigated under tension at temperature from 30 degrees C to 20 degrees C and also under repeated tensile cycles up to N=200 at 20 degrees C. The relative electrical resistivity Delta rho/rho(0) decreases as the volume fraction of SIM increases to nearly 90%, resulting in the more decrement in Delta rho/rho(0) the lower the temperature and after that Delta rho/rho(0) increases with a steep gradient. The decrement stage is supposedly due to the formation and deformation of SIM by twinning and the succeeding increment stage is due to the deformation by dislocation. The decremental change is nicely fitted by an equation of a logarithmic mixturerule (LMR) for electrical resistivity [1]. The relation between Delta rho/rho(0) and plastic strain at various temperatures also shows the decremental curve within the thermoelastic strain range, after that it increases as the plastic strain increases. Effects of repeated cycles to those relations give the similar experimental results as the above where the major test variable is repeated cycles instead of test temperature in this case.
ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 23/09/20 alle ore 12:59:14