Stress corrosion cracking mechanisms in ductile FCC materials

Magnin, T.; Chambreuil, A.; Chateau, J.-P.

doi:10.1007/bf00032932

Cited by 24 publications

(10 citation statements)

References 12 publications

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“…[11][12] This fracture mechanism is observed in some ductile materials under corrosive conditions. 13 The occurrence of this fracture mechanism was discussed in our previous paper. 12 The environmental acceleration factor, D, at 20°C showed the intermediate characteristics in Figure 6.…”

Section: Observation Of Crack Growth Path By Using Scanning Electron mentioning

confidence: 96%

Corrosion Fatigue Crack Growth Rate for Petroleum Refining Pressure Vessel Materials (2.25Cr-1Mo Steel)

et al. 2008

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The 2.25Cr-1Mo steel is used for pressure vessel components and has sometimes suffered from hydrogen embrittlement. Therefore, it is important to investigate the effect of hydrogen on the embrittlement for 2.25Cr-1Mo steel. Under corrosion fatigue conditions, the effect of hydrogen embrittlement (HE) on corrosion fatigue crack growth rate (CFCGR) appears in different ways depending on the applied stress wave forms. This behavior has been clarifi ed by previous theoretical and experimental analyses. In this paper, based on the cited theoretical analyses, the effect of stress wave form on CFCGR for 2.25Cr-1Mo steel was investigated and the sensitivity to hydrogen embrittlement is examined for this material.KEY WORDS: 2.25Cr-1Mo steel, corrosion fatigue, corrosion fatigue crack growth rate, hydrogen embrittlement 0010-9312/08/000129/$5.00+$0.50/0

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Section: Observation Of Crack Growth Path By Using Scanning Electron mentioning

confidence: 96%

Corrosion Fatigue Crack Growth Rate for Petroleum Refining Pressure Vessel Materials (2.25Cr-1Mo Steel)

et al. 2008

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“…These voids reduce the crack-tip opening angles, thus maintaining the crack sharp. The corrosion enhanced plasticity model developed by Magnin can also be applied to transgranular stress corrosion crack- ing in aluminium alloys [28,35]. It is based on the corrosiondeformation interactions at the stress corrosion crack tip.…”

Section: Transgranular Environmentally Assisted Crackingmentioning

confidence: 99%

Environmentally assisted cracking of aluminium alloys

Braun

2007

Materialwissenschaft Werkst

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Dedicated to Prof. Wolfgang Bunk on the occasion of his 80 th birthdayA short review of the stress corrosion cracking (SCC) behaviour of aluminium alloys is given. Mechanisms of environmentally assisted cracking are outlined. For aluminium alloys, in which stress corrosion cracks propagate predominantly along grain boundaries, anodic dissolution and hydrogen embrittlement have been proposed. Transgranular stress corrosion cracking occurring at severe loading conditions has found particular interest concerning localised corrosion-deformation interactions. Accelerated test methods for assessing the SCC behaviour are described, including the slow strain rate testing technique and the breaking load method. Results of recent studies on environmentally assisted cracking of aluminium alloys are summarised. Most of the work published in the last two decades has been on aluminium-lithium based alloys and improved high strength Al-Zn-Mg-Cu alloys in corrosion resistant retrogressed and re-aged tempers.Keywords: aluminium alloys, stress corrosion cracking, anodic dissolution, hydrogen embrittlement, testing methods

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“…However, there are still controversies on the mechanisms of SCC of alloy 600 in PWR environments [11]. Among several SCC models, the corrosion-enhanced plasticity model (CEPM) accounts for the majority of experimental observations [12]. It was qualitatively adapted to the case of SCC of alloy 600 in PWR environment [13] and recently used for the development of numerical simulations in SCC field [14].…”

Section: Stress Corrosion Cracking -The Study Of Hydrogen-dislocationmentioning

confidence: 99%

The Use of Ultra-High-Purity Metals and Alloys to Study Environment-Sensitive Damage Mechanisms in Nuclear Power Plants

Wolski

Renaudot

Harabasz

et al. 2002

phys. stat. sol. (a)

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The interest in ultra-high-purity (UHP) metals and alloys (including single crystals and bicrystals) in studying damage mechanisms is presented through three practical cases of environment or precipitation-induced damages in nuclear power plants. First, stress corrosion cracking mechanisms are assessed by direct measurements of hydrogen-dislocation interactions in pure nickel single crystals in low-cycle fatigue tests under cathodic potential. Hydrogen-induced softening is observed, that confirms an important assumption on the corrosion-enhanced plasticity model. Second, mechanisms of high-temperature intergranular cracking of bimetallic welds are analysed on a series of model materials including 302 H stainless steel and UHP stainless steel selectively doped with carbon. The key role of carbide precipitation and localised shearing in a chromium-depleted zone is pointed out. Finally, the analysis of intergranular penetration of liquid Bi-rich films in a polycrystalline solid Ni inducates the presence of very long and brittle films of nanometric thickness, which have to be taken into account in any model of liquid-metal embrittlement.

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Stress corrosion cracking mechanisms in ductile FCC materials

Cited by 24 publications

References 12 publications

Corrosion Fatigue Crack Growth Rate for Petroleum Refining Pressure Vessel Materials (2.25Cr-1Mo Steel)

Corrosion Fatigue Crack Growth Rate for Petroleum Refining Pressure Vessel Materials (2.25Cr-1Mo Steel)

Environmentally assisted cracking of aluminium alloys

The Use of Ultra-High-Purity Metals and Alloys to Study Environment-Sensitive Damage Mechanisms in Nuclear Power Plants

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