000K utf8 1100 $c2020 1500 eng 2050 urn:nbn:de:gbv:8-mods-2020-00477-2 2051 10.3389/fmats.2020.00084 3000 Silva Campos, Maria del Rosario 3010 Blawert, Carsten 3010 Kainer, Karl Ulrich 3010 Mendis, Chamini L. 3010 Mohedano, Marta 3010 Proefrock, Daniel 3010 Zheludkevich, Mikhail L. 3010 Zimmermann, Tristan 4000 Effect of Heat Treatment on the Corrosion Behavior of Mg-10Gd Alloy in 0.5% NaCl Solution [Silva Campos, Maria del Rosario] 4209 In 0.5 wt.% NaCl aqueous solution, Mg-10Gd alloy shows promising corrosion resistance. The microstructure of this alloy was modified via heat treatments to understand the effect of accompanying microstructural changes on the corrosion resistance. It was found that corrosion performance depends both on the amount and the distribution of the cathodic intermetallic phases. The T4 heat treatment (24 h at 540 ◦ C) caused the Gd to distribute uniformly in the matrix, which had positive effect on corrosion resistance showing a delay in the time required for the first observation of localized corrosion. The T4 heat treated specimens, specimens aged at 200 ◦ C and 300 ◦ C, showed relatively uniform degradation and thus these heat treatments are not detrimental in terms of corrosion resistance. In contrast, heat treatment at 400 ◦ C seems to increase the formation of small cuboidal particles rich in Gd, most likely to be GdH2 particles, in the matrix, resulting in a detrimental effect on the corrosion behavior. 4950 https://doi.org/10.3389/fmats.2020.00084$xR$3Volltext$534 4950 https://nbn-resolving.org/urn:nbn:de:gbv:8-mods-2020-00477-2$xR$3Volltext$534 4961 https://macau.uni-kiel.de/receive/macau_mods_00000857 5051 540 5051 600 5550 EIS 5550 Gd enrichment 5550 Mg5Gd phase 5550 Mg corrosion 5550 rare earth – Gd