Mechanical properties of electrodeposited amorphous/crystalline multilayer structures in the Fe-P system

Amorphous/crystalline multilayer structures of Fe-P alloys were deposited electrochemically using the single bath technique. Hall-Petch behavior of microhardness with respect to sublayer thickness was observed down to a sublayer thickness of 15 nm. For thinner sublayers, a hardness plateau was obtai...

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Bibliographic Details
Published inarXiv.org
Main Authors Mueller, Timo, Bachmaier, Andrea, Konetschnik, Ruth, Schoeberl, Thomas, Pippan, Reinhard
Format Paper
LanguageEnglish
Published Ithaca Cornell University Library, arXiv.org 13.12.2018
Subjects
Alloy systems
Amorphous structure
Crystal structure
Crystallinity
Ferrous alloys
Interface roughness
Mechanical properties
Microhardness
Multilayers
Thickness ratio
Transmission electron microscopy
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Summary:Amorphous/crystalline multilayer structures of Fe-P alloys were deposited electrochemically using the single bath technique. Hall-Petch behavior of microhardness with respect to sublayer thickness was observed down to a sublayer thickness of 15 nm. For thinner sublayers, a hardness plateau was obtained. The transition at a sublayer thickness of 15 nm coincides with the loss of the multilayer structure as observed in transmission electron microscopy. The transition is a possible result of a change in the amorphous to crystalline sublayer thickness ratio and the interface roughness development during the deposition process. Additionally, crack deflection at the interfaces was observed for the layered structures with small sublayer thickness in microbending experiments.
ISSN:2331-8422