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Simultaneous Measurement of Continuum Strain Field and Intermittent Martensite Band Nucleation in Single Crystal Ni-Mn-Ga Foils

Murasawa, Go; Pinneker, Viktor 1; Kohl, Manfred 1
1 Institut für Mikrostrukturtechnik (IMT), Karlsruher Institut für Technologie (KIT)

Abstract (englisch):

A method is presented for the simultaneous measurement of a macroscopic continuum strain field and microscopic intermittent martensite band nucleation behavior arising in single-crystal Ni-Mn-Ga foils under deformation. The continuum strain field was measured using Digital Image Correlation. The intermittent martensite band nucleation was measured using Stress Drop Analysis in a stress-strain curve. Comparison of the results reveals a phenomenological correlation. This method is extremely useful for investigation of deformation mechanisms in single-crystal shape memory alloys.


Zugehörige Institution(en) am KIT Institut für Mikrostrukturtechnik (IMT)
Publikationstyp Buchaufsatz
Publikationsjahr 2017
Sprache Englisch
Identifikator ISBN: 978-3-319-53305-6
ISSN: 1869-8433, 1869-8441
KITopen-ID: 1000068612
HGF-Programm 43.22.01 (POF III, LK 01) Functionality by Design
Erschienen in Advances in Shape Memory Materials. Ed.: Q. Sun
Verlag Springer International Publishing
Seiten 161-171
Serie Advanced Structured Materials ; 73
Bemerkung zur Veröffentlichung http://link.springer.com/chapter/10.1007/978-3-319-53306-3_12
Schlagwörter Ni-Mn-Ga foil Martensite transformation Inhomogeneous deformation Digital image correlation Stress drop analysis
Nachgewiesen in Scopus
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