Corrosion behavior of hot rolled Mg-1.6Gd alloys as degradable materials implant

Susanti, Oknovia; Harjanto, Sri

doi:10.1063/1.5135561

Cited by 1 publication

(1 citation statement)

References 14 publications

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“…The latter causes an increase in pH (over 7.8), and alkalization poisoning would induce toxicity [ 18 ]. There are several studies that investigated the effect of alloy design on corrosion control, including the use of calcium (Ca) [ [19] , [20] , [21] ], zinc (Zn) [ [22] , [23] , [24] ], gadolinium Gd [ [25] , [26] , [27] ], manganese (Mn) [ [28] , [29] , [30] , [31] ], strontium (Sr) [ 30 , 31 ], lithium (Li) [ 32 , 33 ], yttrium (Y) [ [34] , [35] , [36] , [37] ], and zirconium (Zr) [ 37 , 38 ]. It should be noted that the amount of second phase formation and its distribution and microstructural evolution can significantly influence the corrosion rate of Mg alloys [ 39 ].…”

Section: Introductionmentioning

confidence: 99%

Potential bioactive coating system for high-performance absorbable magnesium bone implants

Sarian

Iqbal

Sotoudehbagha

et al. 2022

Bioactive Materials

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Magnesium alloys are considered the most suitable absorbable metals for bone fracture fixation implants. The main challenge in absorbable magnesium alloys is their high corrosion/degradation rate that needs to be controlled. Various coatings have been applied to magnesium alloys to slow down their corrosion rates to match their corrosion rate to the regeneration rate of the bone fracture. In this review, a bioactive coating is proposed to slow down the corrosion rate of magnesium alloys and accelerate the bone fracture healing process. The main aim of the bioactive coatings is to enhance the direct attachment of living tissues and thereby facilitate osteoconduction. Hydroxyapatite, collagen type I, recombinant human bone morphogenetic proteins 2, simvastatin, zoledronate, and strontium are six bioactive agents that show high potential for developing a bioactive coating system for high-performance absorbable magnesium bone implants. In addition to coating, the substrate itself can be made bioactive by alloying magnesium with calcium, zinc, copper, and manganese that were found to promote bone regeneration.

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