In-situ measurement of solution electrical conductivity within crevice of SUS316L stainless steel in high temperature pure water

Soma, Yasutaka   ; Kato, Chiaki   ; Ueno, Fumiyoshi  

To understand the effect of crevice solution chemistry on stress corrosion cracking of stainless steel in high temperature pure water, local solution electrical conductivity was measured using artificial crevice with small sensors. If the crevice gap was narrow enough, local solution electrical conductivity increased more than 100 times than that of bulk pure water and intergranular corrosion occurred.