The role of the tarnish film in the stress corrosion crack propagation process in α-brass in neutral ammoniacal solutions

Effect of 2-Mercaptobenzimidazole Concentration on Electrochemical Behavior of Brass (Cu–40Zn) Surface in Acid Medium

“…Despite its inoxidability character, these alloys are not completely resistant to corrosion especially in acid medium [7][8][9][10][11][12]. To date, corrosion of brass attracts great attention owing its importance in various technological and artistic applications [13][14][15][16]. Several researchers have studied the corrosion and inhibition of brass in different mediums using different inhibitors [17][18][19][20][21][22][23][24][25][26][27][28][29][30][31][32][33].…”

Electrochemistry of stress corrosion cracking of brass

“…McEvily and Bond [25] concluded that a localized cracking process would be avoided if the film formed is nonprotective so it would per mit general corrosion to occur instead of a localized attack, or is strong enough to sustain the applied stress without rupturing. Al though the kinetics and role of tarnish formation were further studied by many authors [26][27][28][29][30][31][32][33][34][35][36], Jenkins and Durham [37] were the first to identify a more protective thin film on a-brass, by electron diffrac tion, prior to the tarnish layer formation. Leidheiser and Kissinger [38] analyzed the liquid within the propagating crack, using the tech nique developed by Brown et al [39], and observed a very high Zn content, indicating more Zn dissolution at the crack tip.…”