Microstructure, mechanical and corrosion properties of biodegradable powder metallourgical Fe-2 wt% X (X = Pd, Ag and C) alloys

0462250 - FZÚ 2017 CH eng J - Journal Article
Čapek, Jaroslav - Stehlíková, K. - Michalcová, A. - Msallamová, Š. - Vojtěch, J.
Microstructure, mechanical and corrosion properties of biodegradable powder metallourgical Fe-2 wt% X (X = Pd, Ag and C) alloys.
Materials Chemistry and Physics. Roč. 181, Sep (2016), 501–511. ISSN 0254-0584. E-ISSN 1879-3312
R&D Projects: GA ČR GBP108/12/G043
Institutional support: RVO:68378271
Keywords : biomaterials * powder metallurgy * alloys * electron microscopy
Subject RIV: BM - Solid Matter Physics ; Magnetism
Impact factor: 2.084, year: 2016

In this study, iron alloys containing 2 wt% palladium, silver or carbon were prepared using powder metalurgy. Microstructure, mechanical and corrosion properties in a simulated body fluid were characterized. Compared to pure iron, alloying slightly increased porosity (from 15% to - 18%) and decreased thje compressive modulus of elasticity (from 5.6 to 1.1-1.8GPa), compressive proof strength (from 145 to 113-127 MPa) and the Vickers hardness (from 63 to 23-37. Alloying with palladiuim and carbon enhanced (whereas silver lowered) the corrosion rate of iron in a simulated body fluid. Based on the obtained results, carbon and especially palladium appear to be suitable alloying elements for iron-based biodegradable materials.
Permanent Link: http://hdl.handle.net/11104/0261733