On the capability of in-situ exposure in an environmental scanning electron microscope for investigating the atmospheric corrosion of magnesium
Artikel i vetenskaplig tidskrift, 2015

The feasibility of environmental scanning electron microscope (BEM) in studying the atmospheric corrosion behavior of 99.97% Mg was investigated. For reference, ex-situ exposure was performed. A model system was designed by spraying few salt particles on the metal surface and further promoting the corrosion process using platinum (Pt) deposition in the form of 1 x 1 x 1 pm(3) dots around the salt particles to create strong artificial cathodic sites. The results showed that the electron beam play a significant role in the corrosion process of scanned regions. This was attributed to the irradiation damage occurring on the metal surface during the BEM in-situ experiment. After achieving to a reliable process route, in a successful attempt, the morphology and composition of the corrosion products formed in-situ in the ESEM were in agreement with those of the sample exposed ex-situ.

Atmospheric corrosion

In-situ microscopy

Chamber pressure

ESEM

Författare

Mohsen Esmaily

Chalmers, Kemi och kemiteknik, Energi och material, Oorganisk miljökemi

Nooshin Mortazavi Seyedeh

Chalmers, Teknisk fysik, Materialens mikrostruktur

Mehrdad Shahabi Navid

Chalmers, Kemi och kemiteknik, Energi och material, Oorganisk miljökemi

Jan-Erik Svensson

Chalmers, Kemi och kemiteknik, Energi och material, Oorganisk miljökemi

Lars-Gunnar Johansson

Chalmers, Kemi och kemiteknik, Energi och material, Oorganisk miljökemi

Mats Halvarsson

Chalmers, Teknisk fysik, Materialens mikrostruktur

Ultramicroscopy

0304-3991 (ISSN)

Vol. 153 45-54

Ämneskategorier

Oorganisk kemi

Metallurgi och metalliska material

DOI

10.1016/j.ultramic.2015.02.010

Mer information

Skapat

2017-10-07