Corrosion fatigue of a magnesium alloy in modified simulated body fluid

Sajjad Jafari; Raghuvir Kumar Singh Raman; Chris Huw John Davies

doi:10.1016/j.engfracmech.2014.07.007

Corrosion fatigue of a magnesium alloy in modified simulated body fluid

Sajjad Jafari, Raghuvir Kumar Singh Raman, Chris Huw John Davies

Research output: Contribution to journal › Article › Research › peer-review

100 Citations (Scopus)

Abstract

For magnesium (Mg) alloys to be used as temporary biodegradable implants it is essential to establish their resistance to body fluid-assisted cracking. In this paper the fatigue behaviour of a common magnesium alloy, AZ91D, is studied in air and in modified simulated body fluid (m-SBF), and the effect of different electrochemical conditions on corrosion fatigue life is investigated. The alloy was found to be susceptible to corrosion fatigue. Results suggest inclusions and corrosion pits to be the crack initiation sites, and hydrogen embrittlement to play a dominant role in cracking of AZ91D Mg alloy in m-SBF.

Original language	English
Pages (from-to)	2 - 11
Number of pages	10
Journal	Engineering Fracture Mechanics
Volume	137
DOIs	https://doi.org/10.1016/j.engfracmech.2014.07.007
Publication status	Published - 2015

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10.1016/j.engfracmech.2014.07.007

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title = "Corrosion fatigue of a magnesium alloy in modified simulated body fluid",

abstract = "For magnesium (Mg) alloys to be used as temporary biodegradable implants it is essential to establish their resistance to body fluid-assisted cracking. In this paper the fatigue behaviour of a common magnesium alloy, AZ91D, is studied in air and in modified simulated body fluid (m-SBF), and the effect of different electrochemical conditions on corrosion fatigue life is investigated. The alloy was found to be susceptible to corrosion fatigue. Results suggest inclusions and corrosion pits to be the crack initiation sites, and hydrogen embrittlement to play a dominant role in cracking of AZ91D Mg alloy in m-SBF.",

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AU - Singh Raman, Raghuvir Kumar

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N2 - For magnesium (Mg) alloys to be used as temporary biodegradable implants it is essential to establish their resistance to body fluid-assisted cracking. In this paper the fatigue behaviour of a common magnesium alloy, AZ91D, is studied in air and in modified simulated body fluid (m-SBF), and the effect of different electrochemical conditions on corrosion fatigue life is investigated. The alloy was found to be susceptible to corrosion fatigue. Results suggest inclusions and corrosion pits to be the crack initiation sites, and hydrogen embrittlement to play a dominant role in cracking of AZ91D Mg alloy in m-SBF.

AB - For magnesium (Mg) alloys to be used as temporary biodegradable implants it is essential to establish their resistance to body fluid-assisted cracking. In this paper the fatigue behaviour of a common magnesium alloy, AZ91D, is studied in air and in modified simulated body fluid (m-SBF), and the effect of different electrochemical conditions on corrosion fatigue life is investigated. The alloy was found to be susceptible to corrosion fatigue. Results suggest inclusions and corrosion pits to be the crack initiation sites, and hydrogen embrittlement to play a dominant role in cracking of AZ91D Mg alloy in m-SBF.

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DO - 10.1016/j.engfracmech.2014.07.007

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JO - Engineering Fracture Mechanics

JF - Engineering Fracture Mechanics

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Corrosion fatigue of a magnesium alloy in modified simulated body fluid

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Monash Centre for Electron Microscopy (MCEM)

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Corrosion fatigue of a magnesium alloy in modified simulated body fluid

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Monash Centre for Electron Microscopy (MCEM)

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