Effect of Immersing Temperature and Duration on Corrosion Resistance of Ti Alloy in Marine Field
SONG Bo
AN Mingyu
NI Junjie
LIU Jingang
CHENG Siyao
LI Yiping
LI Mengru
LI Jianxun
GUO Bohou
LIU Wei
Abstract：In order to master the corrosion mechanisms and corrosion resistance of near β titanium alloy Ti-5321 used in marine field,the effects of corrosion temperature and time on corrosion performance were in-vestigated.It was found that the microstructures of alloy have a significant impact on its corrosion behav-ior.Compared with lamellar structure,the equiaxed β grains microstructure had better corrosion resist-ance.With the temperature increasing,the corrosion current density of the alloy gradually decreased.When immersed at 40～60℃,the corrosion current density remained stable.This was due to the forma-tion of oxide film at the surface,leading to decreased corrosion rate.When the temperature was un-changed,the corrosion current density decreased with the immersing time prolonging.This was also due to the formation of a dense TiO2 film on the surface,which played a role in reducing corrosion rate of the alloy.
Keywords：structural titanium alloy in marine fieldmicrostructurestemperaturetimecorrosion re-sistance
Publication Date：2024-12-28
Online Publishing Date：2026-08-28(First online date of this platform, not the publication date of the document)
Pages：9( 62-70 )