Shallow cryogenic treatment: effect on the corrosion resistance and hardness properties of AA5083-H111 alloy in chloride-ions enriched medium

Abstract The influence of cryogenic and time (10, 24, 36, 48, 72 h) on the hardness, surface roughness, corrosion resistance properties AA5083-H111 alloy in 3.5 wt.% NaCl solution have been investigated. hardness property was analysed via Brinell measurement, measured electrochemically, while morphological studies were undertaken using SEM (scanning electron microscopy) atomic force microscopy (AFM). results disclose that shallow treatment at ?80°C improves alloy’s resistance. best is 24 h. Cryogenic for h increases from 71.3 HB to 74.90 HB, reduces average roughness 534.000 nm 105.634 nm, total charge transfer 18139 ? cm 2 26230 . improvement linked settling fine particles surface. support these claims.