English (United Kingdom)

https://curated-unify.zendy.io/wp-json/zendy-region/v1/featured_content/oa?rat=en

https://curated-unify.zendy.io/wp-json/zendy-region/v1/highlighted_journal/

Global: Zendy Plus annual

Presents the access of premium content as premium feature

Premium Content

Presents the keyphrase highlighting as premium feature

Keyphrase Highlighting

Presents the summarisation as premium feature

Summarisation

Insights

Presents the pdf analysis as premium feature

PDF Analysis

Presents the zaia usage as premium feature

ZAIA

Global: Zendy Tools annual

Global: Zendy Free Plan

Global: Zendy Tools monthly

Global: Zendy Plus monthly

The dross formation is closely related with the solubility of Fe in the molten bath. When the Fe level exceeds the saturation solubility of liquid, the dross precipitates in the form of intermetallic compounds. Inductively coupled plasma atomic emission spectrometry (ICP) was used to determine the content of Fe in molten bath. The morphology of the bottom dross was observed by scanning electron microscopy (SEM). Based on the experimental results and the calculated phase diagram of the Al-Zn-Si-Fe system, the effects of bath temperature and Si content in the molten bath on the Fe solubility were analyzed, and then the mechanism of dross formation was investigated. The results showed that when the bath temperature decreased from 630 °C to 590 °C, the solubility of Fe in liquid reduced from 0.12 wt.% to 0.06 wt.% and 0.17 wt.% FeAl 3  would precipitate from the liquid. Compared with the Fe dissolution lines at different Si content, it can be seen that the solubility of Fe in Al-Zn melt increased with the increasing of Si content from 0.5 wt.% to 1.5 wt.%. However, the amount of precipitated FeAl 3  in 55wt.%Al-Zn-1.5Si molten alloy (0.17 wt.%) was greater than that in 55wt.%Al-Zn-0.5Si molten alloy (0.14 wt.%) in the same temperature range. It means that the more the Si contents in the liquid, the greater the amount of dross formation.

The Mechanism of Dross Formation during Hot-dip Al-Zn Alloy Coating Process