Solidification of pure aluminium affected by a pulsed electrical field and electromagnetic stirring
Source abstract
Abstract
This paper presents experimental investigations on the impact of a pulsed electric current and a travelling magnetic field on the solidification of unalloyed aluminium with different purity grades. Pure aluminium (99.997 and 99.9999 wt% Al) has been solidified under the influence of both electric current pulses and a travelling magnetic field for electromagnetic melt stirring. The electric current was applied by means of two parallel electrodes immersed into the melt through the free surface. In contradistinction to well-known investigations in solute-rich alloys or recently published studies for pure aluminium in our experiments, we did not observe a grain refinement effect which can be attributed to the melt treatment applied. It becomes obvious that a slight contamination of the basic raw material by an impure processing during melt preparation has a more pronounced influence on the grain structure as the melt agitation provided by applying electric currents or magnetic fields.
Source: openaire · Quality: candidate unverified · Source record ↗
Research context
OpenAlex topics: Aluminum Alloy Microstructure Properties · Electromagnetic Effects on Materials · Microstructure and mechanical properties
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
References (17)
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