An Environmentally Assisted Cracking Evaluation of UNS C64200 (Al–Si–Bronze) and UNS C63200 (Ni–Al–Bronze)

Koul, Michelle G.; Gaies, J.

doi:10.1007/s11668-012-9647-0

Cited by 4 publications

(4 citation statements)

References 3 publications

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“…The severe deformation at the crack tip may enhance the corrosion process; thus, SCC of NAB is possible under artificial seawater. Unfortunately, the NAB components investigated in the present work and in the work of Koul and Gaies (2013) are different, i.e. their chemical compositions and mechanical properties differ; thus, additional studies are required to understand the influence of crack tip deformation on SCC of NAB.…”

Section: Resultsmentioning

confidence: 99%

“…Koul and Gaies (2013) evaluated the SCC of heat-treated NAB (C63200) under SW and 5:1/SW:AH environments. The rising step load (RSL) tests were performed in their study, where a specimen was loaded to a target load, and held at constant displacement for 4 h. If no crack growth was observed during the 4-h period, the next load step was applied.…”

Section: Resultsmentioning

confidence: 99%

“…The present findings indicated that (i) SCC of NAB is possible under both seawater and ammonia-containing seawater and that (ii) the SCC of NAB is enhanced by the amount of ammonia present in seawater. Koul and Gaies (2013) evaluated the SCC of heat-treated NAB (C63200) under SW and 5:1/ SW:AH environments. The rising step load (RSL) tests were performed in their study, where a specimen was loaded to a target load, and held at constant displacement for 4 h. If no crack growth was observed during the 4-h period, the next load step was applied.…”

Section: Threshold J-integral For Susceptibility To Sccmentioning

confidence: 99%

“…carbon steel (Torkkeli et al., 2015), stainless steel (Fujii et al., 2015), titanium alloy (Pustode et al., 2014) and magnesium alloy (Shi et al., 2015), limited SCC studies, particularly determinations of K ISCC using pre-cracked specimens, have been performed for NAB components. Koul and Gaies (2013) performed SCC experiments on heat-treated NAB (C63200) under artificial seawater and ammonia-containing artificial seawater. They found that SCC is possible for NAB under ammonia-containing artificial seawater, i.e.…”

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

Elastic-plastic fracture mechanics approach for stress corrosion cracking of nickel aluminium bronze under ammonia-containing artificial seawater

Sochu

Noraphaiphipaksa

Manonukul

et al. 2017

International Journal of Damage Mechanics

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With the growth of urbanization and industries, the seawater near coastal areas has become polluted, and the nickel aluminium bronze components around coastal areas are affected by ammonia-containing seawater. Unfortunately, the influence of the ammonia concentration in seawater on the stress corrosion cracking of thin nickel aluminium bronze components with large plastic zones at the defects has not been evaluated before. In the present work, stress corrosion cracking experiments on nickel aluminium bronze components under artificial seawater and ammonia-containing artificial seawater were conducted using a four-point bending technique. The elastic–plastic fracture mechanics parameter ( J-integral) was evaluated using finite element analysis. The J-integral successfully characterized the crack growth rate under the present corrosive environments. Stress corrosion cracking was possible under both artificial seawater and ammonia-containing artificial seawater. The threshold J-integral for susceptibility to stress corrosion cracking ( JSCC) and fracture toughness ( JC) was the highest for stress corrosion cracking under artificial seawater and decreased as the amount of ammonium hydroxide added to the artificial seawater increased.

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Section: Resultsmentioning

confidence: 99%

Section: Resultsmentioning

confidence: 99%

Section: Threshold J-integral For Susceptibility To Sccmentioning

confidence: 99%