Influence of heat treatment on degradation behavior of bio-degradable die-cast AZ63 magnesium alloy in simulated body fluid

Chenglong Liu; Yunchang Xin; Guoyi Tang; Paul K. Chu

doi:10.1016/j.msea.2006.12.020

Influence of heat treatment on degradation behavior of bio-degradable die-cast AZ63 magnesium alloy in simulated body fluid

Chenglong Liu, Yunchang Xin, Guoyi Tang, Paul K. Chu

Research output: Journal Publications and Reviews › RGC 21 - Publication in refereed journal › peer-review

186 Citations (Scopus)

Abstract

The effects of hybrid aging and solution treatments on the degradation of bio-degradable die-cast AZ63 magnesium alloy in 37 ± 1 °C Tyrode's simulated body fluid have been investigated. The heat treatment is observed to alter the microstructure of the alloy. The amount of β-Mg₁₇Al₂ precipitates is larger and their distribution is more homogeneous. The homogeneous microstructure enhances the corrosion resistance of the alloy and the best corrosion rate achieved on the aged sample is approximately 1/2 of that of the untreated alloy. The corrosion mechanism of the aged alloy is dominated by filiform and pitting corrosion. Better understanding and control of surface corrosion will expedite the use of Mg alloys in biomedical implants. © 2006 Elsevier B.V. All rights reserved.

Original language	English
Pages (from-to)	350-357
Journal	Materials Science and Engineering A
Volume	456
Issue number	1-2
DOIs	https://doi.org/10.1016/j.msea.2006.12.020
Publication status	Published - 15 May 2007

Research Keywords

Aging
AZ63 magnesium alloy
Corrosion resistance
Degradation
Simulated body fluid

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10.1016/j.msea.2006.12.020

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title = "Influence of heat treatment on degradation behavior of bio-degradable die-cast AZ63 magnesium alloy in simulated body fluid",

abstract = "The effects of hybrid aging and solution treatments on the degradation of bio-degradable die-cast AZ63 magnesium alloy in 37 ± 1 °C Tyrode's simulated body fluid have been investigated. The heat treatment is observed to alter the microstructure of the alloy. The amount of β-Mg17Al2 precipitates is larger and their distribution is more homogeneous. The homogeneous microstructure enhances the corrosion resistance of the alloy and the best corrosion rate achieved on the aged sample is approximately 1/2 of that of the untreated alloy. The corrosion mechanism of the aged alloy is dominated by filiform and pitting corrosion. Better understanding and control of surface corrosion will expedite the use of Mg alloys in biomedical implants. {\textcopyright} 2006 Elsevier B.V. All rights reserved.",

keywords = "Aging, AZ63 magnesium alloy, Corrosion resistance, Degradation, Simulated body fluid",

author = "Chenglong Liu and Yunchang Xin and Guoyi Tang and Chu, {Paul K.}",

year = "2007",

month = may,

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doi = "10.1016/j.msea.2006.12.020",

language = "English",

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journal = "Materials Science and Engineering A",

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Influence of heat treatment on degradation behavior of bio-degradable die-cast AZ63 magnesium alloy in simulated body fluid. / Liu, Chenglong; Xin, Yunchang; Tang, Guoyi et al.
In: Materials Science and Engineering A, Vol. 456, No. 1-2, 15.05.2007, p. 350-357.

Research output: Journal Publications and Reviews › RGC 21 - Publication in refereed journal › peer-review

TY - JOUR

T1 - Influence of heat treatment on degradation behavior of bio-degradable die-cast AZ63 magnesium alloy in simulated body fluid

AU - Liu, Chenglong

AU - Xin, Yunchang

AU - Tang, Guoyi

AU - Chu, Paul K.

PY - 2007/5/15

Y1 - 2007/5/15

N2 - The effects of hybrid aging and solution treatments on the degradation of bio-degradable die-cast AZ63 magnesium alloy in 37 ± 1 °C Tyrode's simulated body fluid have been investigated. The heat treatment is observed to alter the microstructure of the alloy. The amount of β-Mg17Al2 precipitates is larger and their distribution is more homogeneous. The homogeneous microstructure enhances the corrosion resistance of the alloy and the best corrosion rate achieved on the aged sample is approximately 1/2 of that of the untreated alloy. The corrosion mechanism of the aged alloy is dominated by filiform and pitting corrosion. Better understanding and control of surface corrosion will expedite the use of Mg alloys in biomedical implants. © 2006 Elsevier B.V. All rights reserved.

AB - The effects of hybrid aging and solution treatments on the degradation of bio-degradable die-cast AZ63 magnesium alloy in 37 ± 1 °C Tyrode's simulated body fluid have been investigated. The heat treatment is observed to alter the microstructure of the alloy. The amount of β-Mg17Al2 precipitates is larger and their distribution is more homogeneous. The homogeneous microstructure enhances the corrosion resistance of the alloy and the best corrosion rate achieved on the aged sample is approximately 1/2 of that of the untreated alloy. The corrosion mechanism of the aged alloy is dominated by filiform and pitting corrosion. Better understanding and control of surface corrosion will expedite the use of Mg alloys in biomedical implants. © 2006 Elsevier B.V. All rights reserved.

KW - Aging

KW - AZ63 magnesium alloy

KW - Corrosion resistance

KW - Degradation

KW - Simulated body fluid

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U2 - 10.1016/j.msea.2006.12.020

DO - 10.1016/j.msea.2006.12.020

M3 - RGC 21 - Publication in refereed journal

SN - 0921-5093

VL - 456

SP - 350

EP - 357

JO - Materials Science and Engineering A

JF - Materials Science and Engineering A

IS - 1-2

ER -

Influence of heat treatment on degradation behavior of bio-degradable die-cast AZ63 magnesium alloy in simulated body fluid

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Research Keywords

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