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Article Dans Une Revue Advanced Engineering Materials Année : 2018

Crystallography of Martensitic Transformation in Epitaxial Ni 50 Mn 30 Ga 20 Thin Film

Résumé

In the present work, scanning electron microscopy and electron backscatter diffraction technique revealed that the microstructure of epitaxial Ni50Mn30Ga20 thin films are composed of six different orientated NM martensite variant colonies. In each martensite variant colony, there are eight different orientated NM martensite variants. The six NM and 7M martensite variant colonies are transformed from six (101)A planes of austenite, with the transformation consequence from Austenite to 7M martensite and then to NM martensite. Cross section TEM examination reveals the coexistence of 7M martensite and NM martensite. The habit plane between 7M martensite and NM martensite can be determined as (001)mono of 7M martensite and (112)Tetr of NM martensite.
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Dates et versions

hal-03080396 , version 1 (17-12-2020)

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Bo Yang, Tingting Liu, Xiao Wen Hao, Zong Bin Li, Y. D. Zhang, et al.. Crystallography of Martensitic Transformation in Epitaxial Ni 50 Mn 30 Ga 20 Thin Film. Advanced Engineering Materials, 2018, 20 (4), pp.1700171. ⟨10.1002/adem.201700171⟩. ⟨hal-03080396⟩
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