Journal
CORROSION SCIENCE
Volume 184, Issue -, Pages -Publisher
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.corsci.2021.109357
Keywords
Magnesium; High purity; Impurity; Processing history; Fe-Si particle; Micro-galvanic
Funding
- Korea Institute of Materials Science [PNK4120]
- National Research Council of Science & Technology (NST), Republic of Korea [PNK4120] Funding Source: Korea Institute of Science & Technology Information (KISTI), National Science & Technology Information Service (NTIS)
Ask authors/readers for more resources
The study systematically analyzed the effects of processing history on corrosion behaviors of pure Mg with controlled impurity content. It was found that impurity Fe and Si precipitated into the Fe-Si phase by heat treatment prior to extrusion, leading to severe micro-galvanic corrosion of as-extruded pure Mg. This suggests that control of the actual tolerance limit, considering both impurity content and processing history, is required in designing alloys.
In this study, the effects of processing history on corrosion behaviours of pure Mg with controlled impurity content, were analysed systematically. Results revealed that impurity Fe and Si were precipitated into the Fe-Si phase by heat treatment prior to extrusion, leading to severe micro-galvanic corrosion of as-extruded pure Mg despite the same impurity contents with as-cast pure Mg. This result suggests that control of the actual tolerance limit, considering not only the impurity content but also the processing history, is required in designing alloys.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available
Share Paper
