Short answer: Selective leaching (dealloying) is corrosion that removes one element from an alloy, leaving a weak porous remnant — dezincification in brass, graphitization in cast iron, dealuminification in aluminium bronze. Right alloy choice and inspection stop it before failure.
At a Glance
Forms of Dealloying
Brass loses zinc (Galvanic Corrosion Guide context), cast iron loses iron, bronzes lose aluminium; see Brass Grades Guide, Copper C11000 Vs C12200 and Monel 400 Guide.
Detect & Prevent
Use dezincification-resistant brass and monitor via Metal Corrosion Monitoring Guide; estimate loss with Metal Corrosion Rate Calculation Guide and document per Mill Test Certificate Guide.
QA & Supply
Protect stock via How To Prevent Metal Rust. HXSCO supplies corrosion-resistant alloys for the service.
Get a Quote
Tell HXSCO your requirements and we will respond with a competitive quote and lead time.
Frequently Asked Questions
Corrosion that dissolves one alloying element, leaving a porous weak shell.
Zinc leaving brass, leaving weak copper-coloured sponge.
Iron leaving grey cast iron, leaving a weak graphite network.
Use dezincification-free brass, controlled bronze chemistry and inspection.
HXSCO supplies DZR brass and resistant bronzes with certificates.
Source Corrosion-Resistant Alloy from HXSCO
HXSCO supplies dezincification-resistant brass and resistant bronzes for aggressive service. Send your environment and quantity for a quote.