Mechanism of Chloride Stress Corrosion Cracking of Austenitic Stainless Steels

Rhodes, P.R.

doi:10.3323/jcorr1954.20.1_21

Cited by 7 publications

(11 citation statements)

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“…The stress corrosion cracking behavior of austenitic stainless steels in chloride and other corrosive solutions has been extensively investigated using various methods [1][2][3][4][5][6][7]. The constant load method can produce a corrosion elongation curve which can be used to obtain three useful parameters namely, time to failure (t f ), steady-state elongation rate (l ss ), and transition time to time to failure ratio (t ss /t f ).…”

Section: Introductionmentioning

confidence: 99%

On the Stress Corrosion Cracking and Hydrogen Embrittlement Behavior of Austenitic Stainless Steels in Boiling Saturated Magnesium Chloride Solutions

Alyousif

Nishimura

2012

International Journal of Corrosion

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The stress corrosion cracking (SCC) and hydrogen embrittlement (HE) behaviors for types 304, 310, and 316 austenitic stainless steels were investigated in boiling saturated magnesium chloride solutions using a constant load method under different conditions including test temperature, applied stress, and sensitization. Both of type 304 and type 316 stainless steels showed quite similar behavior characteristics, whereas type 310 stainless steel showed a different behavior. The time to failure (t f ) parameter was used among other parameters to characterize the materials behavior in the test solution and to develop a mathematical model for predicting the time to failure in the chloride solution. The combination of corrosion curve parameters and fracture surface micrographs gave some explanation for the cracking modes as well as an indication for the cracking mechanisms. On the basis of the results obtained, it was estimated that intergranular cracking was resulted from hydrogen embrittlement due to strain-induced formation of martensite along the grain boundaries, while transgranular cracking took place by propagating cracks nucleated at slip steps by dissolution.

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Section: Introductionmentioning

confidence: 99%

On the Stress Corrosion Cracking and Hydrogen Embrittlement Behavior of Austenitic Stainless Steels in Boiling Saturated Magnesium Chloride Solutions

Alyousif

Nishimura

2012

International Journal of Corrosion

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“…Many excellent research works [1][2][3][4][5][6][7][8] have been done from the aspects of mechanical factors (applied stress, residual strain), environmental factors (temperature, pH, dissolved oxygen content) and material factors (additional element, structure) to clarify the mechanism of SCC. Three basic mechanisms of SCC have been proposed, such as active path dissolution, hydrogen embrittlement and film induced cleavage.…”

Section: Introductionmentioning

confidence: 99%

Stress Corrosion Crack Growth Mechanism on SUS316L Stainless Steel

Masuda¹

2009

TOCORRJ

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Abstract:The stress corrosion cracking (SCC) of stainless steel is one of the biggest problems for maintaining atomic power and chemical plants. However the mechanism has not been solved because of difficulty in observing hydrogen movement. In order to solve this problem, the author has developed a new SCC test method that enables the super Kelvin force microscope (SKFM) and the Kelvin force microscope (KFM) observations. By using this test method, the crack tip deformation and surface potential distribution on SUS316L stainless steels were observed by SKFM and KFM. The existence of hydrogen-induced martensite was examined by the magnetic force microscope (MFM) observations. The results showed that a less noble potential region existed near the crack tip. MFM and KFM observation showed hydrogeninduced martensite existed at the less noble potential region. Repeated SKFM observations revealed that the crack is formed by the movement of hydrogen-induced martensite.

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“…However, the stress corrosion cracking (SCC) caused by sea salt particles has been found under the conditions that the residual stress existed in the structure. Many excellent research works [1][2][3][4][5][6][7][8] have been done from the aspects of mechanical factors (applied stress, residual strain), environmental factors (temperature, pH, DO) and material factors (additional element, structure) to clarify the mechanism of SCC on stainless steel. Three basic mechanisms of SCC have been proposed, such as active path dissolution, hydrogen embrittlement and film induced cleavage.…”

Section: Introductionmentioning

confidence: 99%

Mechanism of SCC on SUS310S Stainless Steel

Masuda¹

2008

TOCORRJ

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Abstract:The author have developed a new SCC test method that enables the super Kelvin force microscope (SKFM) and the Kelvin force microscope (KFM) observations. By using this test device, the crack tip deformation and surface potential distribution were observed on SUS310S stainless steel by SKFM and KFM. At the same time, the distribution of hydrogen was examined by the Ag decoration method with the EDX image mapping analysis combined. Moreover, the existence of hydrogen-induced martensite was examined by the magnetic force microscope (MFM) observations. The results showed that the less noble potential region existed at whole crack and Ag precipitated at less noble potential region in most cases. The MFM and KFM observation showed hydrogen-induced martensite existed at the less noble potential part. SCC is caused by the formation of hydrogen-induced martensite ahead of the crack tip.

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Mechanism of Chloride Stress Corrosion Cracking of Austenitic Stainless Steels

Cited by 7 publications

References 0 publications

On the Stress Corrosion Cracking and Hydrogen Embrittlement Behavior of Austenitic Stainless Steels in Boiling Saturated Magnesium Chloride Solutions

On the Stress Corrosion Cracking and Hydrogen Embrittlement Behavior of Austenitic Stainless Steels in Boiling Saturated Magnesium Chloride Solutions

Stress Corrosion Crack Growth Mechanism on SUS316L Stainless Steel

Mechanism of SCC on SUS310S Stainless Steel

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