Effects of C Doping on the Structure and Functional Characteristics of Fe-Mn Alloys after Equal Channel Angular Pressing

A comparative study of the structure and properties of two biodegradable Fe – 27Mn and Fe – 27Mn – C alloys for biomedical use after equal channel angular pressing (ECAP) has been carried out. It is noted that addition of carbon in the alloy leads to a change in the mechanism of plastic deformation...

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Bibliographic Details
Published in:Key engineering materials 2023-12, Vol.967, p.101-106
Main Authors: Rybalchenko, Georgy, Tabachkova, Natalia, Rybalchenko, Olga V., Lukyanova, Elena, Martynenko, Natalia, Dobatkin, Sergey V., Prosvirnin, Dmitriy, Koltygin, Andrey, Shchetinin, Igor, Raab, Arseniy
Format: Article
Language:English
Subjects:
Comparative studies
Corrosion effects
Corrosion mechanisms
Corrosion rate
Corrosion tests
Deformation effects
Deformation mechanisms
Dislocation density
Equal channel angular pressing
Ferrous alloys
Martensite
Plastic deformation
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Summary:A comparative study of the structure and properties of two biodegradable Fe – 27Mn and Fe – 27Mn – C alloys for biomedical use after equal channel angular pressing (ECAP) has been carried out. It is noted that addition of carbon in the alloy leads to a change in the mechanism of plastic deformation from the formation of martensite to deformation twinning in austenite. ECAP improves the strength characteristics of the alloys under study and the corrosion rate by refining the structure and increasing the dislocation density. The presence of a partially twinned structure in the Fe – 27Mn – C alloy results in a lower corrosion rate despite a stronger refinement of the alloy structure after ECAP.
ISSN:1013-9826
1662-9795
1662-9795
DOI:10.4028/p-4NhwOj