Microstructure characterization and corrosion behavior of hollow ZK60 Mg profile containing longitudinal welds
Source abstract
Abstract
Abstract The porthole die extrusion was carried out using ZK60 Mg alloy. The inhomogeneous microstructure was formed on welding and matrix zones of extruded profiles. High extrusion speed induced a temperature rise and made β1’ precipitate disappear, resulting in an obvious grain growth, change of dynamic recrystallization (DRX) mode, and higher DRX degree. The corrosion rate firstly increased due to the occurrence of localized pitting, and then decreased owing to the formation of a denser and more protective film. Low extrusion speed was harmful on the corrosion behaviors, especially in welding zone, due to the smaller grain size and more precipitates.
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Research context
OpenAlex topics: Magnesium Alloys: Properties and Applications · Aluminum Alloys Composites Properties · Aluminum Alloy Microstructure Properties
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
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