Short answer: Fretting corrosion is surface damage from tiny repeated slip between two contacting surfaces — it generates oxide debris, pits and cracks at joints and fits, and is controlled by lubrication, interference fits, surface hardening and sealing the environment out.
At a Glance
Mechanism of Fretting
Micrometre-scale slip breaks protective films and exposes bare metal that oxidises; the debris (often red iron oxide) wedges in and abrades further. It is a cousin of Galvanic Corrosion Guide y Crevice Corrosion Stainless Steel, and accelerates in moist air — baseline defence is How To Prevent Metal Rust y Metal Corrosion Inhibitor Guide. Good finishes help, per Stainless Steel Surface Finishes.
Where It Occurs
Press fits, splines, bolted and riveted joints, bearing seats and electrical contacts — anywhere with vibration and low-amplitude motion. It appears in Metal Riveting Guide y Dissimilar Metal Welding Guide assemblies, and on Copper Supplier y Brass Supplier contacts. Cathodic protection context is in Cathodic Protection Guide.
Mitigation
Apply lubricants or sealants, use interference fits, harden or coat the surfaces (Nitriding Vs Carburizing, Metal Hardfacing Guide, Anodizing Vs Powder Coating), and keep moisture out. Certificate the surface condition per Mill Test Certificate Guide.
Get a Quote
Tell HXSCO your requirements and we will respond with a competitive quote and lead time.
Preguntas frecuentes
Surface damage from very small repeated relative slip between contacting surfaces, producing oxide debris, pits and sometimes cracks at joints and fits.
Press fits, splines, bolted/riveted joints, bearing seats and electrical contacts — anywhere with vibration and tiny motion.
Lubricate or seal the interface, use interference fits, harden or coat the surfaces, and exclude moisture from the joint.
It is a wear-corrosion combination driven by micromotion and oxidation, so it is more aggressive than simple abrasive wear in the same joint.
HXSCO supplies hardened, coated and anodised parts and can advise on surface treatments that resist fretting; tell us the duty.
Source Fretting-Resistant Parts from HXSCO
HXSCO supplies hardened, coated and anodised parts and can advise on fretting-resistant finishes. Send your joint, duty and quantity for a quote.