Effect of cations on stress corrosion cracking: Ag–40Cd alloy in silver ion aqueous solutions containing a variety of foreign cations
Source abstract
Abstract
Abstract Uhlig showed that cupric ions accelerated the stress corrosion cracking (SCC) of α-brass in ammoniacal solutions. When adding foreign metal cations (cadmium, zinc, cobalt and nickel) to the solutions, it was found that only the copper ion had an effect on the fracture time. The aim of the present work was to study if this is a more general phenomenon in SCC. To that purpose, a Ag–40Cd (at/o) alloy was strained in silver nitrate aqueous solutions containing a variety of foreign metal cations, at the equilibrium potential of the reaction: Ag + + e − = Ag. SCC was found in all cases. Silver ions specifically accelerated the crack propagation rate and the addition of foreign cations showed no significant effect on the phenomenon. Most of the cracks found were intergranular, and the specific effect of the cations could be explained through the surface mobility SCC mechanism.
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Research context
OpenAlex topics: Corrosion Behavior and Inhibition · Hydrogen embrittlement and corrosion behaviors in metals · Aluminum Alloy Microstructure Properties
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
References (23)
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1. Critical potentials for stress corrosion cracking of 63-37 brass in ammoniacal and tartrate solutions10.1149/1.2134212 ↗
2. Stress corrosion cracking of admiralty brass in sulphate solutions10.1016/0010-938X(86)90042-9 ↗
3. Complex ions and stress corrosion cracking in α-brass10.1080/14786436608211994 ↗
4. The effect of Cu2+ concentration on the stress corrosion cracking susceptibility of α-brass in cupric nitrate solutions10.1016/S0010-938X(97)00085-1 ↗
5. Stress corrosion cracking of Ag–30Cd in silver nitrate solutions10.1016/0010-938X(94)90133-3 ↗
6. Effect of Ag+ ion concentration on the stress corrosion cracking susceptibility of Ag–Cd alloys in AgNO3 and AgClO4 aqueous solutions10.1016/S0010-938X(00)00112-8 ↗
7. Stress corrosion cracking of Ag–20Au in HClO4, AgClO4 and KCl solutions, by surface mobility10.1007/BF02657330 ↗
8. Stress corrosion cracking of 18 carat gold10.1016/S0010-938X(03)00132-X ↗
9. Critical Potential for Localized Corrosion of Aluminum
10. Stress corrosion cracking of copper and silver, specific effect of the metal cations10.1016/j.corsci.2004.05.019 ↗
11. A stress corrosion mechanism based on surface mobility10.1016/0010-938X(87)90117-X ↗
12. Surface mobility mechanism of stress-corrosion cracking10.1016/0010-938X(93)90175-G ↗
13. Electrochemical Aspects of Stress Corrosion Cracking
14. Application of the surface-mobility stress corrosion cracking mechanism to nuclear materials10.1016/0022-3115(95)00208-1 ↗
15. Recent developments in the surface-mobility stress-corrosion-cracking mechanism10.1016/S0013-4686(00)00436-9 ↗
16. Vacancies in Stress Corrosion Mechanisms
17. Surface self-diffusion in FCC and BCC metals: A comparison of theory and experiment
18. On surface diffusion and the existence of “two-dimensional” liquids10.1016/0039-6028(69)90160-5 ↗
19. Reply to comment of H.P. Bonzel and N.A. Gjostein on “On surface diffusion and the existence of two-dimensional liquids”10.1016/0039-6028(70)90036-1 ↗
20. Calculation of the surface self-diffusion coefficient, DS, induced by the exchange current density, i0. Application to stress corrosion cracking10.1016/S0010-938X(97)00001-2 ↗
21. The mechanism of the electrodeposition and solution of solid metals. I. Processes in the stationary solution of silver electrodes and the rate of the phase passage reaction
22. Kinetics of the deposition and dissolution of silver10.1063/1.1730706 ↗
23. Mechano-chemical anodic dissolution of austenitic stainless steel in hot chloride solutions10.1098/rspa.1962.0142 ↗