Comparative study of the SCC behavior of E690 steel and simulated HAZ microstructures in a SO2-polluted marine atmosphere

Ma, Hongchi; Du, Cuiwei; Li, Yong; Cui, Zhongyu

doi:10.1016/j.msea.2015.09.052

Cited by 58 publications

(14 citation statements)

References 39 publications

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“…The CGHAZ is the weakest zone in the weld joint, for its lowest toughness because of grain coarsening and high hardness [8][9][10]. The thickness of CGHAZ at different position was calculated, respectively (Fig.…”

Section: Resultsmentioning

confidence: 99%

“…7, it decreases gradually from top WM region to root WM region, with the value of 2296.9 Ohm.cm 2 , 1712.5 Ohm.cm 2 and 1594.6 Ohm.cm 2 , respectively. According to the corrosion dynamics, the high strength low-alloy steel with higher LPR shows good anti-corrosion property [8]. According to the result of the LP tests, it can be concluded that there is the possibility to generate the galvanic corrosion in the WM due to the different micro-area potential distribution.…”

Section: Advances In Engineering Research (Aer) Volume 102mentioning

confidence: 96%

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Investigation on the characterization and properties of EH36 steel FCB welded joint

Wang¹,

Jiang²,

Ma³

et al. 2017

Proceedings of the Second International Conference on Mechanics, Materials and Structural Engineering (ICMMSE 2017)

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Section: Resultsmentioning

confidence: 99%

Section: Advances In Engineering Research (Aer) Volume 102mentioning

confidence: 96%

Investigation on the characterization and properties of EH36 steel FCB welded joint

Wang¹,

Jiang²,

Ma³

et al. 2017

Proceedings of the Second International Conference on Mechanics, Materials and Structural Engineering (ICMMSE 2017)

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“…The austenitizing temperature was chosen at 1150 • C for 10 min because the microstructure difference was obvious and relatively clear at this temperature. Ma et al [30] found that the critical transition temperature of E690 steel in re-austenitizing along the prior-austenitic grain boundary is about 745 • C. Farzad et al [14] reported that the lower the heat treatment temperature, the more M-A island components existed in API X80 pipeline steel. According to the previous experimental results, the critical quenching temperature for the roughening of quenched martensite microstructure of the steel is around 1150 • C (not shown).…”

Section: Slow Strain Rate Tensile Test (Ssrt)mentioning

confidence: 99%

Correlation between Microstructure and Hydrogen Degradation of 690 MPa Grade Marine Engineering Steel

Tian

Xin

et al. 2021

Materials

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Electrochemical H charging, hydrogen permeation, and hydrogen-induced cracking (HIC) behavior of 690 MPa grade steel substrate and different heat-treatment states (annealed, quenched, normalized, tempered) are investigated by cyclic voltammetry (CV), hydrogen permeation, electrochemical H charging, and slow strain rate tensile test (SSRT). The results show that hydrogen diffuses through the steel with the highest rate in base metal and the lowest rate in annealed steel. The hydrogen-induced cracks in base metal show obvious step shape with tiny cracks near the main crack. The cracks of annealed steel are mainly distributed along pearlite. The crack propagation of quenched steel is mainly transgranular, while the hydrogen-induced crack propagation of tempered steel is along the prior austenite grain boundary. HIC sensitivity of base metal is the lowest due to its fine homogeneous grain structure, small hydrogen diffusion coefficient, and small hydrogen diffusion rate. There are many hydrogen traps in annealed steel, such as the two-phase interface which provides accommodation sites for H atoms and increases the HIC susceptibility.

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“…DSSs are being increasingly used as structural materials in marine industries. However, it is well known that SCC is a typical failure of high-strength structural materials resulting from the synergy of the corrosion and stress (Ref 6,7).…”

Section: Introductionmentioning

confidence: 99%

Stress Corrosion Cracking of 2205 Duplex Stainless Steel with Simulated Welding Microstructures in Simulated Sea Environment at Different Depths

Song

Liu

et al. 2020

J. of Materi Eng and Perform

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The stress corrosion cracking (SCC) of 2205 duplex stainless steels (DSSs) with different microstructures in simulated sea environments were studied by electrochemical measurements, electron backscattered diffraction and slow strain rate tensile tests. Heat treatments were used to obtain different microstructures. The DSSs were held at 1350 and 850°C for 30 min and then quenched in the water. The results showed that the DSSs had a higher SCC susceptibility in simulated shallow sea environment than in the simulated deepsea environment. Electrochemical mechanism of the SCC process was controlled by environment factors (temperature, hydrostatic pressure and dissolved oxygen content). The mechanisms of SCC changed from anodic dissolution in the simulated shallow sea environment to hydrogen embrittlement in the simulated deep-sea environment. Moreover, the quenched DSSs, especially the steel held at 850°C, were more vulnerable to SCC than as-received steel in the simulated sea environment due to the deterioration of the microstructure.

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Comparative study of the SCC behavior of E690 steel and simulated HAZ microstructures in a SO2-polluted marine atmosphere

Cited by 58 publications

References 39 publications

Investigation on the characterization and properties of EH36 steel FCB welded joint

Investigation on the characterization and properties of EH36 steel FCB welded joint

Correlation between Microstructure and Hydrogen Degradation of 690 MPa Grade Marine Engineering Steel

Stress Corrosion Cracking of 2205 Duplex Stainless Steel with Simulated Welding Microstructures in Simulated Sea Environment at Different Depths

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