Corrosion Behavior of Zn, Fe and Fe-Zn Powder Materials Prepared via Uniaxial Compression

Gorejová, Radka; Šišoláková, Ivana; Cipa, Pavol; Džunda, Róbert; Sopčák, Tibor; Oriňák, Andrej; Oriňáková, Renáta

doi:10.3390/ma14174983

Cited by 4 publications

(5 citation statements)

References 52 publications

(62 reference statements)

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The calculated corrosion rates show acceleration of degradation with increasing Fe content for both uncoated and coated samples. The reduced corrosion rate of bare Zn biomaterials as compared to Zn‐Fe materials was reported earlier in vitro 16,17,33 and in vivo 54 . As reported previously, the corrosion rates of Zn‐based materials are higher when compared to bare Zn due to the micro galvanic corrosion behavior between the Zn (anode) and its secondary phase (cathode) 17,53,55–57 .…”

Section: Resultssupporting

confidence: 66%

“…In general, the electrochemical corrosion of zinc and iron in a neutral physiological environment proceeds via cathodic and anodic reactions 7,13,16,18,29,33,51,53,59,62 and subsequent products formation:

Anodic reactions : Zn \to {italicZn}^{2 +} + 2 e^{-}

Fe \to {italicFe}^{2 +} + 2 e^{-}

Cathodic reaction : O_{2} + 2 H_{2} O + 4 e^{-} \to 4 {italicOH}^{-}

Subsequent reactions : {italicZn}^{2 +} + 2 {italicOH}^{-} \to Zn {((), OH)}_{2}

Zn {((), OH)}_{2} \to ZnO + H_{2} O

{italicFe}^{2 +} + 2 {italicOH}^{-} \to Fe {((), OH)}_{2}

{italicFe}^{2 +} \to {italicFe}^{3 +} + e^{-}

{italicFe}^{3 +} +

…”

Section: Resultsmentioning

confidence: 99%

“…In Hanks' solution, which contains a large amount of chloride anions, the following reactions can also take place 7,13,18,33,51 :

{italicZn}^{2 +} + 2 {italicCl}^{-} + 6 Zn {((), OH)}_{2} \to 6 Zn {((), OH)}_{2} . {italicZnCl}_{2}

{italicZn}^{2 +} + 2 {italicCl}^{-} + 4 ZnO + 4 H_{2} O \to 4 Zn {((), OH)}_{2} . {italicZnCl}_{2}

Fe {((), OH)}_{2} + {italicCl}^{-} \to FeClOH + {italicOH}^{-}

FeClOH + H^{+} \to {italicFe}^{2 +} + {italicCl}^{-} + H_{2} O

Fe {((), OH)}_{3} + 2 {italicCl}^{-} \to {italicFeCl}_{2} OH + 2 {italicOH}^{-}

{italicFeCl}_{2} OH + H^{+} \to {italicFe}^{3 +} + 2 {italicCl}^{-} +

…”

Section: Resultsmentioning

confidence: 99%

“…In addition, phosphates and carbonates are formed in Hanks' solution 7,13,33,53 :

3 {italicZn}^{2 +} + 2 {italicHPO}_{4}^{2 -} + 2 {italicOH}^{-} + 2 H_{2} O \to {italicZn}_{3} {((), {italicPO}_{4})}_{2} {((), H_{2} O)}_{4}

5 {italicZn}^{2 +} + 2 {italicHCO}_{3}^{-} + 8 {italicOH}^{-} \to {italicZn}_{5} {((), {italicCO}_{3})}_{2} {((), OH)}_{6} + 2 H_{2} O

2 {italicPO}_{4}^{3 -} + 3 {italicCa}^{2 +} \to {italicCa}_{3} {((), {italicPO}_{4})}_{2} ↓

6 {italicPO}_{4}^{3 -} + 10 {italicCa}^{2 +} + 2 {italicOH}^{-} \to {italicCa}_{10} {((), {italicPO}_{4})}_{6} {((), OH)}_{2} ↓

2 {italicPO}_{4}^{3 -} + 3 {italicFe}^{2 +} + 8 H_{2} O \to {italicFe}_{3} {((), {italicPO}_{4})}_{2} . 8 H_{2<...}

…”

Section: Resultsmentioning

confidence: 99%

“…In this work, the effect of a polymer coating on the properties of Zn‐based biomaterials was evaluated for the first time. The study of the corrosion behavior, mechanical properties and hemocompatibility of biodegradable zinc‐iron alloys was performed in our previous papers, 17,33 in which Zn‐Fe alloys that contained 5 and more wt. % of iron was found to show worse mechanical properties and lower hemocompatibility than alloys with lower Fe content.…”

Section: Introductionmentioning

confidence: 99%

See 4 more Smart Citations

Biodegradable zinc‐based materials with a polymer coating designed for biomedical applications

Oriňaková,

Gorejová,

Čákyová

et al. 2023

J of Applied Polymer Sci

Self Cite

View full text Add to dashboard Cite

Over the last decades, biodegradable metals have gained popularity for biomedical applications due to their ability to assist in tissue healing. These materials degrade in vivo, while the corrosion products formed are either absorbed or excreted by the body, and no further surgical intervention is required for removal. Intensive research has been carried out mainly on degradable biomaterials based on Mg and Fe. In recent years, zinc‐based degradable biomaterials have been explored by the biomedical community for their intrinsic physiological relevance, desirable biocompatibility, intermediate degradation rate, tuneable mechanical properties and pro‐regeneration properties. Since pure Zn does not exhibit sufficient mechanical properties for orthopedic applications, various Zn alloys with better properties are being developed. In this work, the combined effect of minor Fe addition to Zn and a polyethyleneglycol (PEG) coating on the surface morphology, degradation, cytotoxicity and mechanical properties of Zn‐based materials was studied. There are several studies regarding the influence of the production of Zn alloys, but the effect of polymer coating on the properties of Zn‐based materials has not been reported yet. A positive effect of Fe addition and polymer coating on the degradation rate and mechanical properties was observed. However, a reduction in biocompatibility was also detected.

show abstract

Section: Resultssupporting

confidence: 66%