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Featured researches published by Andrejs Atrens.


Materials Science Forum | 2011

Magnesium corrosion in different solutions

Nor Ishida Zainal Abidin; Darren J. Martin; Andrejs Atrens

The corrosion mechanism of Mg alloys in Hank’s solution was elucidated by comparing the corrosion of typical Mg alloys (AZ91, ZE41 and Mg2Zn0.2Mn) and high purity Mg in Hank’s solution at room temperature and in 3% NaCl saturated with Mg(OH)2. Corrosion was characterised by the evolved hydrogen and the surfaces after the immersion tests. Corrosion in Hank’s solution was weakly influenced by microstructure in contrast to corrosion in the 3% NaCl solution, where second phases cause strong micro-galvanic acceleration. This is attributed to the formation of a more protective surface film in Hank’s solution, causing extra resistance between the alpha-Mg matrix and the second phase. The incubation period in Hank’s solution was alloy dependent.


JOM | 1994

The thermokinetic modeling of substrate rapid solidification

Xuezhi Zhang; Andrejs Atrens

A boundary problem arising from rapid solidification with changing conditions at the moving boundary for the classical Stefan problem was solved by combining the heat transfer with crystallization kinetics using a front-tracking finite-difference scheme. At each time step, the conditions at the moving boundary were determined by an iterative process.


Surface Modification of Magnesium and its Alloys for Biomedical Applications#R##N#Volume 1: Biological Interactions, Mechanical Properties and Testing | 2015

Revolutionising biodegradable biomaterials - significance of magnesium and its alloys

Andrejs Atrens

Researchers in this area of biodegradable magnesium (Mg) medical implant applications should understand key aspects of Mg metallurgy and corrosion. Mg has unique features that can lead to misleading or erroneous conclusions. Mg behaviour is different from that of other metals, so there are traps for the unwary. Researchers should consult the prior literature. Extensive references are provided. This chapter focuses on recent developments, under the subheadings: (1) corrosion of Mg alloys, (2) ultra-pure Mg, (3) measurement of Mg corrosion, (4) in vitro and in vivo comparison, (5) Mg corrosion mechanism, and (6) galvanic corrosion. Important points are summarised in the final section.


Archive | 2006

Characterisation of TG-SCC In Pure Magnesium and AZ91 Alloy

Nicholas Winzer; Guang-Ling Song; Andrejs Atrens; W. Dietzel; C. Blawert

Our recent critical review of the stress corrosion cracking (SCC) of magnesium aims to provide a foundation for the safe and effective use of magnesium alloys, including practical guidelines for the service use of Mg alloys in the atmosphere and/or in contact with aqueous solutions. This is to provide support for the rapidly increasing use of Mg in industrial applications, particularly in the automobile industry. These guidelines should be firmly based on a critical analysis of our knowledge of SCC based on (1) service experience, (2) laboratory testing and (3) understanding of the mechanism of SCC, as well as based on an understanding of the Mg corrosion mechanism.


Journal of Magnesium and Alloys | 2013

Advances in Mg corrosion and research suggestions

Andrejs Atrens; Guang-Ling Song; Fuyong Cao; Zhiming Shi; Patrick K. Bowen


International Journal of Fatigue | 2010

Influence of microstructure on tensile properties and fatigue crack growth in extruded magnesium alloy AM60

Rongchang Zeng; En-Hou Han; Wei Ke; W. Dietzel; Karl Ulrich Kainer; Andrejs Atrens


Journal of Materials Engineering and Performance | 2015

Effect of Heat Treatment on the Microstructure and Properties of Deformation-Processed Cu-7Cr In Situ Composites

Keming Liu; Zhengyi Jiang; Haitao Zhou; Deping Lu; Andrejs Atrens; Yanling Yang


Materials and Corrosion-werkstoffe Und Korrosion | 2018

Corrosion of Ti35Zr28Nb in Hanks’ solution and 3.5 wt% NaCl solution

J. McElligott; Zhiming Shi; Yuncang Li; Cuie Wen; Andrejs Atrens


Journal of Biomedical Materials Research Part B | 2018

The influence of two common sterilization techniques on the corrosion of Mg and its alloys for biomedical applications

Sean Johnston; Zhiming Shi; Cherilyn Hoe; Peter J. Uggowitzer; Martina Cihova; Jörg F. Löffler; Matthew S. Dargusch; Andrejs Atrens


Materials Characterization | 2017

Deformation mechanism and microstructure evolution during on-line heating rolling of AZ31B Mg thin sheets

Fusheng Pan; Bin Zeng; Bin Jiang; Andrejs Atrens; Hanwu Dong

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Zhiming Shi

University of Queensland

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Bin Zeng

Chongqing University

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Deping Lu

Shanghai Jiao Tong University

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En-Hou Han

Chinese Academy of Sciences

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