Initiation of stress corrosion cracking of Ti90-Al6-V4 wire in aqueous solution: Non-destructive monitoring by holographic interferometry

Abstract

A study on stress corrosion cracking (SCC) of Ti90-Al6-V4 wire in anhydrous methanol has been conducted. The study focused on developing a relationship between microscopic deformation and corrosion current density in the incubation period of the SCC of the wire. The study succeeded in non-destructively monitoring the initiation stage of SCC by holographic interferometry. The monitoring process was carried out in situ using the real-time holographic interferometry. The corrosion current density was determined by established methods of electrochemistry. Consequently, a relationship for the influence of microscopic deformations on the corrosion current density was established.