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Superelasticity and Serration Behavior in Small‐Sized NiMnGa Alloys
Author(s) -
Zhang Yong,
Li Min,
Wang Yan Dong,
Lin Jun Pin,
Dahmen Karin A.,
Wang Zi Long,
Liaw Peter K.
Publication year - 2014
Publication title -
advanced engineering materials
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.938
H-Index - 114
eISSN - 1527-2648
pISSN - 1438-1656
DOI - 10.1002/adem.201300518
Subject(s) - serration , materials science , pseudoelasticity , composite material , ranging , elasticity (physics) , magnetostriction , metallurgy , structural engineering , microstructure , computer science , martensite , engineering , telecommunications , physics , quantum mechanics , magnetic field
A Taylor–Ulitovsky method can be used to prepare Ni 53.96 Mn 24.12 Ga 21.92 micro‐wires with diameters ranging from 5–200 μm. The micro‐wires exhibits large super‐elasticity (up to 10.9%) without breaking (see graph). The serrations on the stress–strain curves are observed during unloading, while no obvious serrations during the loading process were noticed.