التفاصيل البيبلوغرافية
| العنوان: |
Local Corrosion Behavior of Additive Manufactured AlSiMg Alloy Assessed by SEM and SKPFM. |
| المؤلفون: |
Revilla, Reynier I., Jingwen Liang, Godet, Stéphane, De Graeve, Iris |
| المصدر: |
Journal of The Electrochemical Society; 2017, Vol. 164 Issue 2, pC27-C35, 9p |
| مصطلحات موضوعية: |
CORROSION in alloys, ELECTROLYTIC corrosion, ALUMINUM |
| مستخلص: |
The local corrosion behavior of additive manufactured AlSiMg specimens was studied using the SEM and SKPFM techniques. A morphological characterization of corroded areas revealed that crystallographic pitting developed in the aluminum grains inside the melt pool borders, from where corrosion spread to adjacent zones. The local Volta potential analysis showed that there is a close relation between the cellular grain size and the potential difference between the silicon and the aluminum phase. SKPFM measurements explained why the melt pool borders were more severely attacked by corrosion than other regions in the surface of the AM specimens. In regions with larger and coarser microstructures, greater potential difference between the phases was found, which represents a higher driving force for galvanic corrosion. [ABSTRACT FROM AUTHOR] |
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| قاعدة البيانات: |
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