Enhancement of superelasticity in Cu-Al-Mn-Ni shape-memory alloys by texture control

Y. Sutou; T. Omori; R. Kainuma; K. Ishida; N. Ono

doi:10.1007/s11661-002-0267-2

Enhancement of superelasticity in Cu-Al-Mn-Ni shape-memory alloys by texture control

Y. Sutou, T. Omori, R. Kainuma, K. Ishida, N. Ono

Research output: Contribution to journal › Article

77 Citations (Scopus)

Abstract

A significant improvement in the degree of superelasticity in Cu-Al-Mn ductile polycrystalline alloys has been achieved through the addition of Ni and control of the recrystallization texture by thermomechanical processing, which contain the annealing in the fcc (α) + bcc (β) two-phase region, followed by heavy cold reductions of over 60 pct. The addition of Ni to the Cu-Al-Mn alloys shows a drastic effect on the formation of the strong {112|<110> recrystallization texture. Superelastic strains on the order of 7 pct, 3 times larger than those in other Cu-based shape-memory alloys (SMAs), have been realized in the textured Cu-Al-Mn-Ni alloys. The superelastic/strains obtainable in the textured Cu-based SMAs are on a par with those attainable in Ni-Ti-based alloys.

Original language	English
Pages (from-to)	2817-2824
Number of pages	8
Journal	Metallurgical and Materials Transactions A: Physical Metallurgy and Materials Science
Volume	33
Issue number	9
DOIs	https://doi.org/10.1007/s11661-002-0267-2
Publication status	Published - 2002 Sep

ASJC Scopus subject areas

Condensed Matter Physics
Mechanics of Materials
Metals and Alloys

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Sutou, Y., Omori, T., Kainuma, R., Ishida, K., & Ono, N. (2002). Enhancement of superelasticity in Cu-Al-Mn-Ni shape-memory alloys by texture control. Metallurgical and Materials Transactions A: Physical Metallurgy and Materials Science, 33(9), 2817-2824. https://doi.org/10.1007/s11661-002-0267-2

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AU - Ono, N.

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