Tribo- and Tribocorrosion Properties of Magnesium AZ31 Alloy

Autor:	Alexandre Mégret, Loïc Prince, Marie-Georges Olivier, Véronique Vitry
Rok vydání:	2023
Předmět:	corrosion Materials Chemistry reciprocal sliding wear magnesium AZ31 Surfaces and Interfaces coefficient of friction Surfaces Coatings and Films
Zdroj:	Coatings Volume 13 Issue 2 Pages: 448
ISSN:	2079-6412
DOI:	10.3390/coatings13020448
Popis:	In automotive and aerospace fields, the use of lightweight materials is required. Magnesium and its alloys combine a low density with high mechanical properties and excellent thermal conductivity. However, those materials suffer from low corrosion and wear resistances. The combined action of corrosion and wear is also critical for these materials. Tribocorrosion of magnesium alloy AZ31 has been investigated with reciprocal sliding wear as a function of the applied load in dry and wet (NaCl) conditions. The study shows that the main wear mechanisms were adhesion, abrasion, and oxidation in dry sliding wear while no adhesion was found in wet sliding wear. Corrosion of the worn surface occurs also in wet sliding wear. It is interesting to notice that wear is less pronounced in wet sliding wear than in dry sliding wear due to the natural lubrication of the NaCl electrolyte. Only severe conditions, high normal load, and wet conditions bring magnesium AZ31 alloy in filiform corrosion.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_dedup___::a5daf518f24cc17ff4d83cbe255d573c https://doi.org/10.3390/coatings13020448 Zobrazit plný text záznamu