Nanoscale Mechanical Properties of Nanoindented Ni(48.8)Mn(27.2)Ga(24) Ferromagnetic Shape Memory Thin Film

The structure and nanoscale mechanical properties of Ni(48.8)Mn(27.2)Ga(24) thin film fabricated by DC magnetron sputtering are investigated systematically. The thin film has the austenite state at room temperature with the L2(1) Hesuler structure. During nanoindentation, stress-induced martensitic...

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Detalles Bibliográficos
Autores principales: Fu, Xiaofei, Liu, Chao, Lu, Xili, Li, Xianli, Lv, Jingwei, Wang, Famei, Wang, Liying
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Hindawi 2017
Materias:
Research Article
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5661773/
https://www.ncbi.nlm.nih.gov/pubmed/29109812
http://dx.doi.org/10.1155/2017/4630156
Descripción
Sumario:The structure and nanoscale mechanical properties of Ni(48.8)Mn(27.2)Ga(24) thin film fabricated by DC magnetron sputtering are investigated systematically. The thin film has the austenite state at room temperature with the L2(1) Hesuler structure. During nanoindentation, stress-induced martensitic transformation occurs on the nanoscale for the film annealed at 823 K for 1 hour and the shape recovery ratio is up to 85.3%. The associated mechanism is discussed.

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