Short answer: Erosion-corrosion is the accelerated loss of metal where a corrosive fluid flow mechanically strips the protective film as fast as it reforms; it is driven by velocity, entrained particles, turbulence and geometry, and is controlled by material selection, hardfacing and flow design.
At a Glance
What Erosion-Corrosion Is
A flowing corrosive medium keeps removing the passive or corrosion-product film, so the bare metal keeps corroding — the combined mode behind Metal Wear Mechanisms Guide e Metal Cavitation Guide. It is distinct from pure Metal Corrosion Fatigue Guide and from Galvanic Corrosion Guide, though the two often overlap where dissimilar metals meet moving water.
Where It Strikes
Pipe elbows, pumps, heat-exchanger tubes, valve trim and ship hulls in moving seawater or slurry. Context in Copper Pipe Vs Steel Pipe, Steel Pipe Supplier, Stainless Steel Pipe Supplier, Seawater Corrosion Guide e Metal Cladding Facades.
Prevention & Material Choice
Reduce velocity and turbulence, filter solids, and pick erosion-resistant alloys — Wear Resistant Steel Supplier, Metal Hardfacing Guide, Nickel Alloy Supplier e Hastelloy Guide for aggressive service. Add Metal Corrosion Inhibitor Guide, document per Mill Test Certificate Guide and inspect with Metal Ndt Guide.
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Perguntas frequentes
Accelerated metal loss where a flowing corrosive fluid mechanically strips the protective film as fast as it reforms.
Pipe elbows, pumps, valve trim, heat-exchanger tubes and hulls exposed to fast or particle-laden fluid.
Flow continuously removes the protective film, so attack rates far exceed still-fluid corrosion.
Hard, tough, corrosion-resistant alloys: hardened steels, nickel alloys and cobalt alloys in slurry/service.
HXSCO supplies hardfaced, alloyed and clad components rated for erosive-corrosive duty.
Source Erosion-Resistant Metal from HXSCO
HXSCO supplies hardfaced, alloyed and clad components rated for erosive-corrosive service. Send your fluid, velocity and quantity for a quote.