Characteristics of Anodized Layer in Investment Cast Ni50Ti50 Shape Memory Alloy | Zendy

Shimaa H. El-Hadad | Zendy; Khaled M. Ibrahim | Zendy; Lothar Wagner | Zendy

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Characteristics of Anodized Layer in Investment Cast Ni50Ti50 Shape Memory Alloy

Author(s) -

Shimaa H. El-Hadad,

Khaled M. Ibrahim,

Lothar Wagner

Publication year - 2014

Publication title -

journal of metallurgy

Language(s) - English

Resource type - Journals

eISSN - 1687-9473

pISSN - 1687-9465

DOI - 10.1155/2014/346328

Subject(s) - anodizing , shape memory alloy , materials science , layer (electronics) , nickel titanium , oxide , porosity , metallurgy , casting , composite material , alloy , elasticity (physics) , aluminium

NiTi shape memory alloys are promising implant materials due to their shape memory effect and super elasticity. In the current study, some Ni50Ti50 (mass %) SMAs samples were prepared by investment casting. These samples were then anodized and thermally treated to improve the surface properties. A fully saturated oxide layer was obtained. The structure and hardness properties of the anodized surfaces were then investigated. A hard porous layer with no free Ni atoms could be obtained which can be used as prebiomimetic surface for biological application

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