Stress Corrosion Cracking of ASTM A508 Cl 2 Steel in Oxygenated Water at Elevated Temperatures

Choi, Ho Jin; Beck, F. H.; Szklarska‐Śmiałowska, Z.; Macdonald, D.D.

doi:10.5006/1.3579266

Cited by 35 publications

(7 citation statements)

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“…[27][28] Although the mass-transfer rates were not precisely known, and the flow velocities were low (0 cm/s to ~ 10 cm/s), these studies indicated the CGR for short cracks (L < 0.01 cm) is decreased by increasing the flow velocity, whereas the opposite is true for long cracks. The short crack behavior is consistent with rinsing of the crack enclave, 6 whereas the long crack behavior is consistent with predictions of the CEFM.…”

Section: Cgr Vs Flow Velocitymentioning

confidence: 98%

Theoretical Estimation of Crack Growth Rates in Type 304 Stainless Steel in Boiling-Water Reactor Coolant Environments

Macdonald

Urquidi‐Macdonald

et al. 1996

CORROSION

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Section: Cgr Vs Flow Velocitymentioning

confidence: 98%

Theoretical Estimation of Crack Growth Rates in Type 304 Stainless Steel in Boiling-Water Reactor Coolant Environments

Macdonald

Urquidi‐Macdonald

et al. 1996

CORROSION

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“…It was necessary to cool down the autoclave quickly to avoid further growth of oxide layers. Flow rate in all the experiments was kept constant at 0.83 L/h as variable flow could affect the behavior of SCC . A strain rate of 5 × 10 −7 s −1 for SSRT tests was selected in this study according to ISO 7539‐7 standard…”

Section: Methodsmentioning

confidence: 99%

Behavior and susceptibility to stress corrosion cracking of a nickel‐based alloy in superheated steam and supercritical water

Khan

Zhang

Zhu

et al. 2018

Materials & Corrosion

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Stress corrosion cracking (SCC) behavior of Alloy 617 was studied to evaluate its suitability for Generation IV supercritical water reactor concept. A series of slow strain rate tensile (SSRT) tests at a constant strain rate of 5 × 10−7 s−1 were carried out in superheated steam and supercritical water over a pressure range of 0.1–25 MPa at 650 °C. SSRT test in dry N2 gas was also performed to compare the results in non‐corrosive environment with corrosive medium environment. Intergranular cracks were observed for all specimens regardless of the test environment. Alloy 617 showed susceptibility to SCC at the tested experimental conditions. The dominance of intergranular SCC was observed on the gage surface and fracture surface by using scanning electron microscope analysis. The effect of varying environmental conditions on SCC susceptibility is further discussed.

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“…To avoid the growth of further oxide layer, it is necessary to cool down the autoclave firstly. The flow rate was kept constant as variable flow could possibly affect the behavior of SCC in steam and SCW …”

Section: Methodsmentioning

confidence: 99%

Environmentally assisted crack growth rate of an austenitic steel TP347HFG in high‐temperature medium

Khan

Zhang

Yue

et al. 2017

Materials & Corrosion

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The crack growth rate (CGR) tests of austenitic steel TP347HFG were conducted under <10‐8000 ppb dissolved oxygen (DO) in steam, the alternating environment of air and steam and supercritical water (SCW) at 600–650 °C. A constant stress intensity factor (K) method and direct current potential drop technique were used in the tests to evaluate its environmentally assisted cracking (EAC) properties as superheater and reheater boiler tubes in ultra‐supercritical power plants. CGR increases monotonically with temperature and DO content. CGR in SCW is greater than that in the high‐temperature steam which indicates that exposure pressure has an obvious effect on crack propagation. The varying CGR in different experimental environments show that exposure medium participates in the cracking process. Fracture surface and cross‐sectional surface of compact tension specimen were analyzed by scanning electron microscope. The mechanism of crack propagation in different exposure environment is further discussed.

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Stress Corrosion Cracking of ASTM A508 Cl 2 Steel in Oxygenated Water at Elevated Temperatures

Cited by 35 publications

References 0 publications

Theoretical Estimation of Crack Growth Rates in Type 304 Stainless Steel in Boiling-Water Reactor Coolant Environments

Theoretical Estimation of Crack Growth Rates in Type 304 Stainless Steel in Boiling-Water Reactor Coolant Environments

Behavior and susceptibility to stress corrosion cracking of a nickel‐based alloy in superheated steam and supercritical water

Environmentally assisted crack growth rate of an austenitic steel TP347HFG in high‐temperature medium

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