Tensile/compressive behaviour of non-lyered tetragonal Ni.sub.52.8./sub.Mn.sub.25.7./sub.Ga.sub.21.5./sub. alloy
1.
SYSNO ASEP
0102492
Document Type
J - Journal Article
R&D Document Type
Journal Article
Subsidiary J
Ostatní články
Title
Tensile/compressive behaviour of non-lyered tetragonal Ni52.8Mn25.7Ga21.5 alloy
Title
Tahové/tlakové chování nevrstevné slitiny Ni52.8Mn25.7Ga21.5./sub
Author(s)
Söderberg, O. (FI) Straka, L. (FI) Novák, Václav (FZU-D) Heczko, O. (FI) Hannula, S.-P. (FI) Lindroos, V. K. (FI)
Source Title
Materials Science and Engineering A Structural Materials Properties Microstructure and Processing. - : Elsevier
- ISSN 0921-5093
Roč. 386, - (2004), s. 27-33
Number of pages
7 s.
Language
eng - English
Country
NL - Netherlands
Keywords
Ni-Mn-Ga alloys ; tensile testing ; twinning
Subject RIV
BM - Solid Matter Physics ; Magnetism
CEZ
AV0Z1010914 - FZU-D
Annotation
The stress-strain behaviour of the alloy NiMnGa with the non-modulated tetragonal martensite crystal structure was studied below Ms temperature. At ambient temperature the stress plateau of the detwinning showed a total strain of 21-22% with 1S-20MPa stress. The tension-compression cycling decreased the stress plateau to 10-12 MPa, while the increasing testing temperature lead to a value of 6.7 MPa close to the reverse transformation temperature
