DOI: 10.1143/jjap.10.571. Origin of Memory Effect in Cu-Al-Ni Alloy

Origin of Memory Effect in Cu-Al-Ni Alloy

10.1143/jjap.10.571

Crossref journal-article

IOP Publishing

Japanese Journal of Applied Physics (266)

Abstract

The origin of the memory effect in Cu–14.2Al–4.3Ni (W/O) alloy has been investigated using the techniques of optical microscopy and electron microscopy. As a result the following have been established. The plastic deformation is caused by the growth or creation, and the contraction or disappearance of twins inside martensites, and the growth or contraction of martensites in the β1 phase region. Upon heating martensites transform back into the β1 phase and twins are annihilated, whether or not the martensite and twins have been introduced by deformation. These facts explain the origin of the memory effect. Based on these observations, the requirements for the memory effect have been proposed as follows: i) The martensite transformation is thermoelastic. ii) The lattice invariant strains are not dislocations but twins. The correlation between these requirements and the structural properties, and the reason why twins are annihilated upon the reverse transformation is also discussed.

Bibliography

Otsuka, K. (1971). Origin of Memory Effect in Cu-Al-Ni Alloy. Japanese Journal of Applied Physics, 10(5), 571.

Authors 1

Kazuhiro Otsuka (first)

References 20 Referenced 85

10.1063/1.1702955 / J. Appl. Phys. (1965)
{'key': ''}
{'key': '', 'first-page': '47', 'volume': '189', 'year': '1951', 'journal-title': 'Trans. AIME'} / Trans. AIME (1951)
10.1016/0036-9748(70)90087-6 / Scr. Metall. (1970)
10.1063/1.1656526 / J. Appl. Phys. (1968)
{'key': '', 'first-page': '204', 'volume': '133', 'year': '1939', 'journal-title': 'Trans. AIME'} / Trans. AIME (1939)
10.1016/0001-6160(64)90025-2 / Acta Metall. (1964)
10.1143/JJAP.8.1196 / Jpn. J. Appl. Phys. (1969)
10.1143/JPSJ.28.804 / J. Phys. Soc. Jpn. (1970)
{'key': '', 'first-page': '211', 'volume': '66', 'year': '1949', 'journal-title': 'Dokl. Akad. Nauk SSSR'} / Dokl. Akad. Nauk SSSR (1949)
{'year': '1956', 'key': ''} (1956)
{'key': '', 'first-page': '28', 'volume': '12', 'year': '1963', 'journal-title': 'J. Electronmicroscopy'} / J. Electronmicroscopy (1963)
{'year': '1966', 'key': ''} (1966)
{'key': '', 'first-page': '272', 'volume': '11', 'year': '1961', 'journal-title': 'Fiz. Metallov i Metallovedenie'} / Fiz. Metallov i Metallovedenie (1961)
{'year': '1965', 'key': ''} (1965)
{'key': '', 'first-page': '546', 'volume': '39', 'year': '1952', 'journal-title': 'Naturwissenschaften'} / Naturwissenschaften (1952)
{'key': ''}
{'key': '', 'first-page': '1662', 'volume': '230', 'year': '1964', 'journal-title': 'Trans. AIME'} / Trans. AIME (1964)
{'key': '', 'first-page': '1503', 'volume': '197', 'year': '1953', 'journal-title': 'Trans. AIME'} / Trans. AIME (1953)
10.1016/0001-6160(54)90102-9 / Acta Metall. (1954)

Dates

Type	When
Created	19 years, 9 months ago (Nov. 4, 2005, 2:06 a.m.)
Deposited	2 years, 8 months ago (Nov. 28, 2022, 6:37 a.m.)
Indexed	1 month, 4 weeks ago (June 26, 2025, 6:45 a.m.)
Issued	54 years, 3 months ago (May 1, 1971)
Published	54 years, 3 months ago (May 1, 1971)
Published Print	54 years, 3 months ago (May 1, 1971)

Funders 0

None

BibTeX

@article{Otsuka_1971, title={Origin of Memory Effect in Cu-Al-Ni Alloy}, volume={10}, ISSN={1347-4065}, url={http://dx.doi.org/10.1143/jjap.10.571}, DOI={10.1143/jjap.10.571}, number={5}, journal={Japanese Journal of Applied Physics}, publisher={IOP Publishing}, author={Otsuka, Kazuhiro}, year={1971}, month=may, pages={571} }

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