Detection of stress corrosion cracking and general corrosion of mild steel in simulated defense nuclear waste solutions using electrochemical noise analysis

Edgemon, Glenn L.; Danielson, M.J.; Bell, Graham

doi:10.1016/s0022-3115(97)00005-6

Cited by 17 publications

(4 citation statements)

References 8 publications

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“…At high concentrations, the passivating ability of the solution will increase, this means that the time required to produce a film having the critical properties required for crack initiation will decrease. These curves indicate a decrease in the stress corrosion life with increasing concentration as reported by previous workers for different nitrate solutions [7,14,15].…”

Section: Electrochemical Measurements On Unstressed Specimens 1) Corrsupporting

confidence: 84%

“…The increase in temperature to 368 K shifted the corrosion potential to a higher value and increases the active peak current. Edgemon et al [14] perform tests using mild steel in simulated waste solutions which primarily composed of ammonium nitrate and when held at approximately 370 K. Data characteristic of uniform and stress corrosion cracking are presented.…”

Section: Electrochemical Measurements Of Mild Steelmentioning

confidence: 99%

See 1 more Smart Citation

Effect of Temperature and Concentration of Ammonium Nitrate Solution on the Succeptibility of Mild Steel to Stress Corrosion Cracking

Mohammed¹,

Yahya²,

Elramady³

2010

JEMAA

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The effect of varying the temperature and the concentration of ammonium nitrate solution on the stress corrosion cracking (SCC) susceptibility of mild steel is studied. An increase in the temperature causes a decrease in the stress corrosion life. It appears that the susceptibility in the range 368 K to 380 K was greater than at other temperatures. Near the boiling point corrosion and stress corrosion occurs, at the boiling point, the cracking was associated with a high rate of general corrosion. Microscopic examination after stress corrosion testing in 10Wt%, 20Wt%, and 52Wt% NH4NO3 solution revealed that in all cases there was severe intergranular attack, especially at the high concentration

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Section: Electrochemical Measurements On Unstressed Specimens 1) Corrsupporting

confidence: 84%

Section: Electrochemical Measurements Of Mild Steelmentioning

confidence: 99%

Effect of Temperature and Concentration of Ammonium Nitrate Solution on the Succeptibility of Mild Steel to Stress Corrosion Cracking

Mohammed¹,

Yahya²,

Elramady³

2010

JEMAA

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“…In order for SCC to occur, the material of construction must be susceptible to SCC in that environment and susceptibility may be quite specific. Ammonium nitrate has been observed to cause SCC in a variety of steels, including mild steel, in other applications [1][2][3][4][5][6][7][8][9]. It is possible for ammonium nitrate to accumulate in waste heat boilers in power stations.…”

Section: Failure Root Causementioning

confidence: 99%

Ammonium nitrate induced cracking of a dryer

Clegg

Tomlins²,

Mackay

2011

Engineering Failure Analysis

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“…These electro chemical-potential transients can be used as in-situ corrosion monitoring in a freely corroding system without application of external source. ECN studies were done earlier where it has been used to characterize cracking or non cracking process [4,7], crack growth [3,5,6] and stress corrosion cracking susceptibility [2], while others have used current transients to study repassivation kinetics [1]. In present work, we tried to detect the stress corrosion cracking initiation by using potential transients and correlate the potential transient to SCC initiation event.…”

Section: Introductionmentioning

confidence: 99%

Understanding and Detecting Early Stages of SCC Initiation in Sensitized Stainless Steel by Means of Electrochemical Potential Transients

Bidhar

Watanabe

Tsukui

et al. 2007

KEM

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Series of slow strain rate tests (SSRT) were conducted on moderately sensitized austenitic stainless steel in diluted aqueous solution of sodium thiosulfate at ambient temperature and pressure. Only a small area of the test piece was exposed to test solution and electrochemical potential transients obtained during the straining was used to detect an initiation or a precursor event of stress corrosion crack (SCC). Tests were stopped intermittently after getting potential transients, so as not to allow crack to propagate and to observe the morphology of very initial stage of SCC initiation site. Visual observation by scanning electron microscope (SEM) before and after the test shows direct correlation between electrochemical transient of certain characteristic to the crack initiation. SEM observation shows δ- ferrite in the alloy as one of the preferential SCC initiation site for typical electrochemical transient. Attempt was made to calculate the charge associated with crack initiation event from potential transient using dummy anode test.

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Detection of stress corrosion cracking and general corrosion of mild steel in simulated defense nuclear waste solutions using electrochemical noise analysis

Cited by 17 publications

References 8 publications

Effect of Temperature and Concentration of Ammonium Nitrate Solution on the Succeptibility of Mild Steel to Stress Corrosion Cracking

Effect of Temperature and Concentration of Ammonium Nitrate Solution on the Succeptibility of Mild Steel to Stress Corrosion Cracking

Ammonium nitrate induced cracking of a dryer

Understanding and Detecting Early Stages of SCC Initiation in Sensitized Stainless Steel by Means of Electrochemical Potential Transients

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