The Effect of Pre‐Processing and Grain Structure on the Bio‐Corrosion and Fatigue Resistance of Magnesium Alloy AZ31

Wang, Hao; Estrin, Yuri; Fu, Huameng; Song, Guang‐Ling; Zúberová, Zuzana

doi:10.1002/adem.200700200

Cited by 156 publications

(66 citation statements)

References 14 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…For example, a weaker corrosion resistance, more and deeper corrosion pits and a higher rate of mass loss in a 3.5 wt.% NaCl solution was reported in pure magnesium after processing by ECAP compared to the as-cast material [26]. On the other hand, a reduced degradation rate in Hank´s solution was reported in a magnesium AZ31alloy processed by ECAP by comparison with the squeeze-cast counterpart [27]. An improved corrosion resistance in an AZ31 alloy after processing by ECAP was also reported in NaCl and phosphate-buffer solution-PBS and this was attributed to the early formation of a protective layer of corrosion products [28].…”

Section: Introductionmentioning

confidence: 92%

Effect of severe plastic deformation on the biocompatibility and corrosion rate of pure magnesium

et al. 2017

View full text Add to dashboard Cite

Abstract:It is well established that magnesium has a considerable potential for use as a biodegradable material. This report describes the effect of processing by severe plastic deformation (SPD) on the grain refinement, mechanical behavior, biocompatibility and corrosion behavior of commercial purity (CP) magnesium. The material was received as cast slabs and processed by rolling, equal-channel angular pressing and high-pressure torsion to produce samples with average grain sizes in the range of ~0.5 -300 m. The results show that severe plastic deformation does not affect the biocompatibility. However, the corrosion behavior is affected by the processing route. Specifically, SPD processing leads to general corrosion as opposed to localized corrosion in the as-cast and hot-rolled condition.

show abstract

Section: Introductionmentioning

confidence: 92%

Effect of severe plastic deformation on the biocompatibility and corrosion rate of pure magnesium

et al. 2017

View full text Add to dashboard Cite

show abstract

“…8 The exploration of the possibility of employing magnesium as biodegradable implant materials emerged again, and notable research activities in this field are underway. [9][10][11][12] This article presents some results of in vitro degradation tests of magnesium and magnesium alloys, and the possible approaches to reduce and control the degradation process.…”

Section: Introductionmentioning

confidence: 99%

In vitro biodegradation behavior of magnesium and magnesium alloy

Wang

Shi

2011

J Biomed Mater Res

View full text Add to dashboard Cite

Magnesium has the potential to be used as degradable metallic biomaterial. For magnesium and its alloys to be used as biodegradable implant materials, their degradation rates should be consistent with the rate of healing of the affected tissue, and the release of the degradation products should be within the body's acceptable absorption levels. Conventional magnesium degrades rapidly, which is undesirable. In this study, biodegradation behaviors of high purity magnesium and commercial purity magnesium alloy AZ31 in both static and dynamic Hank's solution are systematically investigated. The in vitro test results show that magnesium purification and selective alloying are effective approaches to reduce the degradation rate of magnesium. In the static condition, the corrosion products accumulate on the materials surface as a protective layer, which results in a lower degradation rate than the dynamic condition. Anodized coating can significantly further reduce the degradation rate of magnesium. This study strongly indicates that magnesium can be used as degradable implant material as long as the degradation is controlled at a low rate. Magnesium purification, selective alloying, and anodized coating are three effective approaches to reduce the rate of degradation. © 2011 Wiley Periodicals, Inc. J Biomed Mater Res Part B: Appl Biomater, 2011.

show abstract

“…Moreover, the high grain boundary density caused by grain refinement was also beneficial for the improvement of the degradation behavior. Wang et al [24] studied the bio-corrosion behavior of Mg alloy AZ31 and verified that the degradation rate of this alloy after immersion in Hank's solution was significantly reduced due to grain refinement. However, the degradation rate accelerated when Zn content was further increased.…”

Section: Degradation Behaviormentioning

confidence: 99%

Influence of Alloying Treatment and Rapid Solidification on the Degradation Behavior and Mechanical Properties of Mg

Chen

Wang

et al. 2016

Metals

View full text Add to dashboard Cite

Magnesium (Mg) has drawn increasing attention as a tissue engineering material. However, there have been very few studies of laser-melted Mg-Zn alloys. In this study, four binary Mg-xZn (x = 2, 4, 6 and 8 wt. %) alloys were fabricated by laser melting. The influence of zinc (Zn) content and technique on the degradation behavior and mechanical properties of Mg were discussed. Results revealed that Mg-xZn alloys consisted of an α-Mg matrix and MgZn phases, which dispersed at the grain boundaries. In addition, the MgZn phase increased with the increase in Zn content. The laser-melted alloy had fine homogenous grains, with an average grain size of approximately 15 µm. Grain growth was effectively inhibited due to the precipitation of the MgZn phase and rapid solidification. Grain refinement consequently slowed down the degradation rate, with Zn content increasing to 6 wt. %. However, a further increase of Zn content accelerated the degradation rate due to the galvanic couple effect between α-Mg and MgZn. Moreover, the mechanical properties were improved due to the grain refinement and reinforcement of the MgZn phase.

show abstract

The Effect of Pre‐Processing and Grain Structure on the Bio‐Corrosion and Fatigue Resistance of Magnesium Alloy AZ31

Cited by 156 publications

References 14 publications

Effect of severe plastic deformation on the biocompatibility and corrosion rate of pure magnesium

Effect of severe plastic deformation on the biocompatibility and corrosion rate of pure magnesium

In vitro biodegradation behavior of magnesium and magnesium alloy

Influence of Alloying Treatment and Rapid Solidification on the Degradation Behavior and Mechanical Properties of Mg

Contact Info

Product

Resources

About