TY - JOUR
T1 - Transmission electron microscopy of twins in 10M martensite in Ni-Mn-Ga ferromagnetic shape memory alloy
AU - Matsuda, Mitsuhiro
AU - Yasumoto, Yoshihiro
AU - Hashimoto, Kimiaki
AU - Hara, Toru
AU - Nishida, Minoru
N1 - Funding Information:
We would like to thank to Maria Angeles Busturia, Yeray Duque, Ascensión Valle and Eunate Arana for their clinical and technical help and thanks to Julia G Fenn (INC team) and Alejandro Urberuaga for their English translation. The study was financially supported by the Department of Health and Department of Education of the Government of the Basque Country (research grant: 200211011 , IT-472-07 ), Fundación Salud 2000 , Grant number 23301 and Fundación IKERTU . We extend our gratitude to the Sociedad Española de Endocrinología Pediátrica for the award “José Igea 2002” funded by Pfizer . Finally, we want to thank the children and their parents for their continued participation and involvement in this research.
PY - 2012
Y1 - 2012
N2 - The combination of the 10M martensite plate variants in NiMnGa ferromagnetic shape memory alloy was investigated by conventional transmission electron microscopy (CTEM) and electron diffraction experiments. There were four plate variants commonly designated as A, B, C and D, and three fundamental plate combinations can be identified in a given plate group, namely A : B (C : D) of (551) Type II, A : C (B : D) of (125) Type I and A : D (B : C) of {105} compound twins in the martensites. The boundary structure of these twins was also observed in the edge-on state by high resolution electron microscopy (HREM). The boundary of the Type I and the compound twins was not sharp in comparison to that in other shape memory alloys. There were neither ledge nor step structures at the irrational boundary in the Type II twin.
AB - The combination of the 10M martensite plate variants in NiMnGa ferromagnetic shape memory alloy was investigated by conventional transmission electron microscopy (CTEM) and electron diffraction experiments. There were four plate variants commonly designated as A, B, C and D, and three fundamental plate combinations can be identified in a given plate group, namely A : B (C : D) of (551) Type II, A : C (B : D) of (125) Type I and A : D (B : C) of {105} compound twins in the martensites. The boundary structure of these twins was also observed in the edge-on state by high resolution electron microscopy (HREM). The boundary of the Type I and the compound twins was not sharp in comparison to that in other shape memory alloys. There were neither ledge nor step structures at the irrational boundary in the Type II twin.
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U2 - 10.2320/matertrans.M2012002
DO - 10.2320/matertrans.M2012002
M3 - Article
AN - SCOPUS:84867051721
SN - 1345-9678
VL - 53
SP - 902
EP - 906
JO - Materials Transactions
JF - Materials Transactions
IS - 5
ER -