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 Plus monthly

Global: Zendy Tools annual

Global: Zendy Tools monthly

Global: Zendy Free Plan

Intermetallic phases in a recently developed Al-Li-Cu-Mg alloy have beeninvestigated to understand their roles in the initiation and propagationprocesses of intergranular corrosion. Corrosion initiation involves trenchingformation in the Al matrix adjacent to the large particles of Al7Cu2(Fe, Mn)phases. These phases containing Li are electrochemically active and susceptibleto self-dissolution via a de-alloying mechanism during corrosion process. Thesubsurface particles of Al7Cu2(Fe, Mn) and Al20Cu2Mn3 phases act as theinternal cathodes for continuous corrosion propagation along theparticle-matrix interface and the associated grain boundaries. Corrosionpropagation along the particle-matrix interface was facilitated by the anodicdissolution of the surrounding Al matrix due to the micro-galvanic interactionwith the cathodic intermetallic phases. In addition, T1 (Al2CuLi) precipitatesand the isolated particles of Al7Cu2(Fe, Mn) and Al20Cu2Mn3 phases weredissolved along the path of corrosion propagation. The dissolved metal ionswere redeposited through the network of crevice.

Role of intermetallic phases in initiation and propagation of intergranular corrosion of an Al-Li-Cu-Mg alloy