Effects of aging on pseudoelastic behavior in Cu-15. 0 at. %Sn alloy single crystals

Journal Article · Sat Dec 31 23:00:00 EST 1994 · Acta Metallurgica et Materialia; (United States)

DOI:https://doi.org/10.1016/0956-7151(95)90292-9· OSTI ID:6548425

Kato, H; Hirata, N; Miura, S ^[1]

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1. Kyoto Univ. (Japan). Dept. of Engineering Physics and Mechanics

The effect of aging on pseudoelasticity in a shape memory alloy was studied using single crystals of a CuSn alloy, in which the martensitic transformation behavior is fairly susceptible to an aging treatment. The aging effect on the nucleation of martensite was investigated in the specimens aged in the parent phase. The effect on the growth of martensite was studied by strain aging during tensile testing, and also by the analysis of strain rate dependence of pseudoelasticity. The former effect is attributed to the embryo exhaustion due to the diffusion of Sn atoms, originally proposed by Kennon. On the other hand the latter is explained from the pinning of a martensite/parent interface by the diffusion of Sn atoms.

• OSTI ID: 6548425
• Journal Information: Acta Metallurgica et Materialia; (United States), Journal Name: Acta Metallurgica et Materialia; (United States) Vol. 43:1; ISSN 0956-7151; ISSN AMATEB
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
360102* -- Metals & Alloys-- Structure & Phase Studies
360103 -- Metals & Alloys-- Mechanical Properties
AGING
ALLOYS
COPPER ALLOYS
COPPER BASE ALLOYS
DIFFUSION
ELASTICITY
MECHANICAL PROPERTIES
METALLURGICAL EFFECTS
MICROSTRUCTURE
PHASE TRANSFORMATIONS
SHAPE MEMORY EFFECT
STRAIN AGING
TENSILE PROPERTIES
TIN ALLOYS