Publication detail

Methodology for In Situ Microstructural Characterisation of AZ31 Magnesium Alloy Corrosion Degradation in Hanks' Solution

DOLEŽAL, P.FOJT, L. MINDA, J.

Original Title

Methodology for In Situ Microstructural Characterisation of AZ31 Magnesium Alloy Corrosion Degradation in Hanks' Solution

Type

journal article in Scopus

Language

English

Original Abstract

Due to their specific properties magnesium and magnesium alloys find huge application possibilities mainly in automotive, engineering, transport and space industry. Important properties of magnesium alloys for engineering applications are high specific strength and high internal dumping values, while biocompatibility, biotoxicity and biodegradability open them the possibility to be used for biomedical applications. Development of new biodegradable magnesium alloys, investigation of new production and processing technologies on their properties and evaluation of corrosion degradation in simulated body fluids solutions are the main topics of the last decades.The paper offers a method simulating in-vivo tests for description of the corrosion process of potential biomedical materials in time using atomic force microscopy (AFM). To prove the proposed methodology detailed analysis of the corrosion degradation of AZ31 cast magnesium alloy in flowing Hanks’ balanced salt solution (HBSS) was performed. Corrosion degradation process of the examined alloy was influenced by different microstructural features and their interfaces. Results of the created corrosion galvanic cells and the corrosion attack evolution on the interface of the present intermetallic phases and the matrix led to profile changes detected by AFM. Due to their specific properties magnesium and magnesium alloys find huge application possibilities mainly in automotive, engineering, transport and space industry. Important properties of magnesium alloys for engineering applications are high specific strength and high internal dumping values, while biocompatibility, biotoxicity and biodegradability open them the possibility to be used for biomedical applications. Development of new biodegradable magnesium alloys, investigation of new production and processing technologies on their properties and evaluation of corrosion degradation in simulated body fluids solutions are the main topics of the last decades.The paper offers a method simulating in-vivo tests for description of the corrosion process of potential biomedical materials in time using atomic force microscopy (AFM). To prove the proposed methodology detailed analysis of the corrosion degradation of AZ31 cast magnesium alloy in flowing Hanks’ balanced salt solution (HBSS) was performed. Corrosion degradation process of the examined alloy was influenced by different microstructural features and their interfaces. Results of the created corrosion galvanic cells and the corrosion attack evolution on the interface of the present intermetallic phases and the matrix led to profile changes detected by AFM.

Keywords

AZ31, magnesium alloy, corrosion, HBSS, AFM

Authors

DOLEŽAL, P.;FOJT, L. ;MINDA, J.

Released

22. 3. 2017

Publisher

Materials Science Forum

Location

Switzerland

ISBN

1662-9752

Periodical

Materials Science Forum

Year of study

2017/3

Number

891

State

Swiss Confederation

Pages from

298

Pages to

302

Pages count

5

URL

https://www.scientific.net/MSF.891.298

BibTex

@article{BUT149131,
  author="DOLEŽAL, P. and FOJT, L. and MINDA, J.",
  title="Methodology for In Situ Microstructural Characterisation of AZ31 Magnesium Alloy Corrosion Degradation in Hanks' Solution",
  journal="Materials Science Forum",
  year="2017",
  volume="2017/3",
  number="891",
  pages="298--302",
  doi="10.4028/www.scientific.net/MSF.891.298",
  issn="1662-9752",
  url="https://www.scientific.net/MSF.891.298"
}