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

IS (Iodine-Sulfur) thermochemical hydrogen production process has corrosive environments, such as a boiling sulfuric acid and hydrogen iodine. An Fe-Si alloy is known as a corrosion resistant material in H2SO4 environment because of SiO2 film formation. Although the corrosion resistance increases with Si concentration, it becomes brittle. Hence, a compositionally graded Fe-Si alloy (CG Fe-Si alloy), 14 wt% Si at free surface and 3 wt % at substrate, was tentatively made by using CVD (Chemical Vapor Deposition) technique. The corrosion resistance of the CG Fe-Si alloy in the boiling 17.7 kmol/m3 sulfuric acid was examined through weight loss, SEM microscopic observation and an electron probe X-ray microanalyzer. The CG Fe-Si alloy shows equivalent corrosion resistance to the Fe-Si alloy including more than 12 wt% Si homogeneously. However, after 300 hours immersion the SiO2 film formed on the surface became likely to break away around surfaces where microcracks caused by cooling-down process during the CVD treatment were present.

Corrosion Test of Compositionally Graded Fe-Si Alloy in Boiling Sulfuric Acid