Shape memory effect in NiAl and NiMn-based alloys

Journal Article · Tue Jan 14 23:00:00 EST 1997 · Scripta Materialia

DOI:https://doi.org/10.1016/S1359-6462(96)00363-6· OSTI ID:417904

Jee, K K; Shin, M C ^[1]; Potapov, P L ^[2]; Song, S Y ^[3]

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1. Korea Inst. of Science and Technology, Seoul (Korea, Republic of). Div. of Metals
2. Inst. of Physical Metallurgy, Moscow (Russian Federation)
3. Moscow Steel and Alloys Inst. (Russian Federation)

Profound understanding of crystallography, deformation and memory behavior is important to develop new high temperature shape memory alloys (SMAs). Structural aspects of NiAl and NiMn base alloys have been studied in detail. At the same time, although the shape memory effect has been demonstrated in NiAl and NiMnTi/Al, such important memory characteristics as recovery curves, one-way and two-way strains and the effect of prestrain are not well documented. The purpose of the present paper is to compare the SME of NiAl-base and NiMn-base alloys. Since the polycrystals are greatly susceptible to intergranular fracture in tension, prestrain is given by compression. To avoid the different influence of thermally activated processes, the alloys were chosen to have similar transformation temperatures.

• OSTI ID: 417904
• Journal Information: Scripta Materialia, Journal Name: Scripta Materialia Journal Issue: 2 Vol. 36; ISSN 1359-6462; ISSN SCMAF7
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
ALUMINIUM ALLOYS
CRYSTAL-PHASE TRANSFORMATIONS
EXPERIMENTAL DATA
INTERMETALLIC COMPOUNDS
MANGANESE ALLOYS
MELTING
NICKEL ALLOYS
QUENCHING
SAMPLE PREPARATION
SHAPE MEMORY EFFECT
STRAINS
TITANIUM ALLOYS