Three-dimensional analysis of the microstructure and bio-corrosion of Mg-Zn and Mg-Zn-Ca alloys

Y. Lu; Y. L. Chiu; I. P. Jones

doi:10.1016/j.matchar.2015.12.008

Three-dimensional analysis of the microstructure and bio-corrosion of Mg-Zn and Mg-Zn-Ca alloys

Y. Lu^*
, Y. L. Chiu
, I. P. Jones

^*Corresponding author for this work

Metallurgy and Materials

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

11 Citations (Scopus)

Abstract

The effects of the morphology and the distribution of secondary phases on the bio-corrosion properties of magnesium (Mg) alloys are significant. Focused Ion Beam (FIB) tomography and Micro X-Ray computed tomography (Micro-CT) have been used to characterise the morphology and distribution of (α-Mg + MgZn) and (α-Mg + Ca₂ + Mg₆ + Zn₃) eutectic phase mixtures in as-cast Mg-3Zn and Mg-3Zn-0.3Ca alloys, respectively. There were two different 3D distributions: (i) an interconnected network and (ii) individual spheres. The tomography informed our understanding of the relationship between the distribution of secondary phases and the development of localized corrosion in magnesium alloys.

Original language	English
Pages (from-to)	113-121
Number of pages	9
Journal	Materials Characterization
Volume	112
Early online date	12 Dec 2015
DOIs	https://doi.org/10.1016/j.matchar.2015.12.008
Publication status	Published - 1 Feb 2016

Keywords

Bio-corrosion
FIB-SEM
Magnesium alloy
Micro-CT
Microstructure

ASJC Scopus subject areas

Mechanical Engineering
Mechanics of Materials
General Materials Science
Condensed Matter Physics

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title = "Three-dimensional analysis of the microstructure and bio-corrosion of Mg-Zn and Mg-Zn-Ca alloys",

abstract = "The effects of the morphology and the distribution of secondary phases on the bio-corrosion properties of magnesium (Mg) alloys are significant. Focused Ion Beam (FIB) tomography and Micro X-Ray computed tomography (Micro-CT) have been used to characterise the morphology and distribution of (α-Mg + MgZn) and (α-Mg + Ca2 + Mg6 + Zn3) eutectic phase mixtures in as-cast Mg-3Zn and Mg-3Zn-0.3Ca alloys, respectively. There were two different 3D distributions: (i) an interconnected network and (ii) individual spheres. The tomography informed our understanding of the relationship between the distribution of secondary phases and the development of localized corrosion in magnesium alloys.",

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author = "Y. Lu and Chiu, \{Y. L.\} and Jones, \{I. P.\}",

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doi = "10.1016/j.matchar.2015.12.008",

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journal = "Materials Characterization",

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T1 - Three-dimensional analysis of the microstructure and bio-corrosion of Mg-Zn and Mg-Zn-Ca alloys

AU - Lu, Y.

AU - Chiu, Y. L.

AU - Jones, I. P.

PY - 2016/2/1

Y1 - 2016/2/1

N2 - The effects of the morphology and the distribution of secondary phases on the bio-corrosion properties of magnesium (Mg) alloys are significant. Focused Ion Beam (FIB) tomography and Micro X-Ray computed tomography (Micro-CT) have been used to characterise the morphology and distribution of (α-Mg + MgZn) and (α-Mg + Ca2 + Mg6 + Zn3) eutectic phase mixtures in as-cast Mg-3Zn and Mg-3Zn-0.3Ca alloys, respectively. There were two different 3D distributions: (i) an interconnected network and (ii) individual spheres. The tomography informed our understanding of the relationship between the distribution of secondary phases and the development of localized corrosion in magnesium alloys.

AB - The effects of the morphology and the distribution of secondary phases on the bio-corrosion properties of magnesium (Mg) alloys are significant. Focused Ion Beam (FIB) tomography and Micro X-Ray computed tomography (Micro-CT) have been used to characterise the morphology and distribution of (α-Mg + MgZn) and (α-Mg + Ca2 + Mg6 + Zn3) eutectic phase mixtures in as-cast Mg-3Zn and Mg-3Zn-0.3Ca alloys, respectively. There were two different 3D distributions: (i) an interconnected network and (ii) individual spheres. The tomography informed our understanding of the relationship between the distribution of secondary phases and the development of localized corrosion in magnesium alloys.

KW - Bio-corrosion

KW - FIB-SEM

KW - Magnesium alloy

KW - Micro-CT

KW - Microstructure

UR - https://www.scopus.com/pages/publications/84950127350

U2 - 10.1016/j.matchar.2015.12.008

DO - 10.1016/j.matchar.2015.12.008

M3 - Article

AN - SCOPUS:84950127350

SN - 1044-5803

VL - 112

SP - 113

EP - 121

JO - Materials Characterization

JF - Materials Characterization

ER -

Three-dimensional analysis of the microstructure and bio-corrosion of Mg-Zn and Mg-Zn-Ca alloys

Abstract

Keywords

ASJC Scopus subject areas

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