Comprehensive Dissolution Current Noise Analysis during Stress Corrosion Cracking of Cu3Au Alloys

1999 ◽  
Vol 146 (10) ◽  
pp. 3702-3710 ◽  
Author(s):  
B. Malki ◽  
A. Legris ◽  
J. ‐L. Pastol ◽  
D. Gorse
Keyword(s):  
Stress Corrosion ◽  
Stress Corrosion Cracking ◽  
Noise Analysis ◽  
Corrosion Cracking ◽  
Current Noise ◽  
Dissolution Current

Comparative Analysis of Electrochemical Noise Generated During Stress Corrosion Cracking of AISI 304 Stainless Steel

CORROSION ◽  
2000 ◽  
Vol 56 (9) ◽  
pp. 921-927 ◽  
Author(s):  
M. Leban ◽  
V. Doleček ◽  
A. Legat
Keyword(s):  
Time Series ◽  
Stainless Steel ◽  
Stress Corrosion ◽  
Stress Corrosion Cracking ◽  
Test Specimen ◽  
Electrochemical Noise ◽  
Corrosion Cracking ◽  
Current Noise ◽  
Aisi 304 ◽  
Bend Tests

Abstract Electrochemical noise measurements were performed on electrodes made from a sample of AISI 304 (UNS S30400) stainless steel. Potential and current noise were measured under open-circuit conditions in a three-electrode system, one of the electrodes being maintained under load and acting as a working electrode. Two types of electrode set-ups were used, which differed according to the method of load application. In the first case, the common electrode was a U-bend test specimen, which was subjected to a static, large, but undefined load. In the second case, it was a tensile test specimen, which was subjected to a gradually increasing load (the slow rate load test [SRLT]). U-bend tests were performed in a concentrated solution of magnesium chloride (MgCl2) at an elevated temperature, test specimens being dismantled and examined daily through a microscope. SRLT were conducted in a dilute solution of sodium thiocyanate (NaSCN) at room temperature, with simultaneous electrochemical noise (ECN) and load/elongation measurements. Toward the end of both types of tests, significant simultaneous spikes of voltage and current noise were observed. The spikes detected during SRLT correlated with drops in the applied load and sudden increases in elongation. After the tests were completed, several characteristic ECN time series, referring to both types of test specimen, were subjected to spectral and chaos analysis. Attempts to distinguish between the active cracking and nonactive cracking periods on the basis of the aforementioned types of analysis were unsuccessful since, in the case of the U-bend tests, the events that are typical for stress corrosion cracking (SCC) processes were too rare. In the case of the SRLT, the ECN time series were not stationary, which is a necessary condition for a successful outcome of such analyses.

Effect of Extension Rate on Stress Corrosion Cracking Velocity Using Electrochemical Noise Analysis

2019 ◽  
Vol 3 (24) ◽  
pp. 13-18
Author(s):  
Claudia Lopez ◽  
Citalli Gaona ◽  
Adan Borunda ◽  
Facundo Almeraya ◽  
Alberto Martinez ◽  
...  
Keyword(s):  
Stress Corrosion ◽  
Stress Corrosion Cracking ◽  
Electrochemical Noise ◽  
Noise Analysis ◽  
Corrosion Cracking ◽  
Extension Rate

AMBRONZE 413

Alloy Digest ◽  
1969 ◽  
Vol 18 (6) ◽  
Keyword(s):  
Corrosion Resistance ◽  
Physical Properties ◽  
Surface Treatment ◽  
Stress Corrosion ◽  
Tensile Properties ◽  
Stress Corrosion Cracking ◽  
Electrical Contact ◽  
Heat Treating ◽  
Corrosion Cracking ◽  
Tin Bronze

Abstract AMBRONZE 413 is a copper-tin bronze recommended for plater's plates and electrical contact springs. It is relatively immune to stress-corrosion cracking. This datasheet provides information on composition, physical properties, hardness, elasticity, and tensile properties. It also includes information on corrosion resistance as well as forming, heat treating, machining, joining, and surface treatment. Filing Code: Cu-201. Producer or source: Anaconda American Brass Company.

NICROFER 5716 HMoW

Alloy Digest ◽  
1985 ◽  
Vol 34 (11) ◽  
Keyword(s):  
Corrosion Resistance ◽  
Physical Properties ◽  
Stress Corrosion ◽  
Tensile Properties ◽  
Stress Corrosion Cracking ◽  
Crevice Corrosion ◽  
Corrosion Cracking ◽  
Low Carbon ◽  
Nickel Chromium ◽  
Corrosion Pitting

Abstract NICROFER 5716 HMoW is a nickel-chromium-molybdenum alloy with tungsten and extremely low carbon and silicon contents. It has excellent resistance to crevice corrosion, pitting and stress-corrosion cracking. This datasheet provides information on composition, physical properties, elasticity, and tensile properties. It also includes information on corrosion resistance as well as forming, machining, and joining. Filing Code: Ni-324. Producer or source: Vereingte Deutsche Metallwerke AG.

Sign in / Sign up

Export Citation Format

Share Document