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Keywords: corrosion
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Proceedings Papers

Proc. ASME. PVP2021, Volume 5: Operations, Applications, and Components; Seismic Engineering; Non-Destructive Examination, V005T07A016, July 13–15, 2021
Paper No: PVP2021-60903
... fittings are carried out. Through the analysis of macro and micro corrosion morphology on site, it is shown that local corrosion is the root cause of failure, and it is accompanied by uniform corrosion. When the corrosion reaches a certain level, such as perforation, the overall pipeline will increase...
Proceedings Papers

Proc. ASME. PVP2021, Volume 5: Operations, Applications, and Components; Seismic Engineering; Non-Destructive Examination, V005T07A004, July 13–15, 2021
Paper No: PVP2021-61416
... will include: creep, fatigue, corrosion (erosion-corrosion - E/C and flow accelerated corrosion - FAC) as well as mechanisms that are commonly responsible for high energy piping leaks, failures and repairs including thermal quench cracking of HRSG interstage, terminal desuperheaters and turbine bypass...
Proceedings Papers

Proc. ASME. PVP2021, Volume 1: Codes and Standards, V001T01A013, July 13–15, 2021
Paper No: PVP2021-62909
... fatigue based on a mechanically short cracks. Total Life Prediction approach that would be adequately, but not excessively, conservative. Such an approach necessitates the Keywords: Fatigue, Testing, Corrosion, Metals, development of analytical methods for the various stages of Reactor/Nuclear, Structural...
Proceedings Papers

Proc. ASME. PVP2020, Volume 7: Non-Destructive Examination, V007T07A004, August 3, 2020
Paper No: PVP2020-21581
.... A piping elbow was identified at a thickness monitoring location (TML) within a larger system due to existing internal corrosion and/or erosion. Since the metal loss is internal, an external visual examination was not sufficient to monitor the metal loss. External ultrasonic (UT) inspection was used...
Proceedings Papers

Proc. ASME. PVP2020, Volume 7: Non-Destructive Examination, V007T07A010, August 3, 2020
Paper No: PVP2020-21184
... a condition-based maintenance capability to detect corrosion in secondary piping structures in NPPs. To achieve this, a data-driven methodology is developed and validated for detecting surrogate corrosion processes in piping structures. A scaled-down experimental test bed is developed to evaluate...
Proceedings Papers

Proc. ASME. PVP2020, Volume 8: Operations, Applications, and Components, V008T08A027, August 3, 2020
Paper No: PVP2020-21376
...Abstract Abstract Natural gas is a kind of high-quality and low-carbon energy and its demand is increasing rapidly year by year. The natural gas produced from the gas well contains some corrosive impurities like CO 2 , H 2 S, and H 2 O. Therefore, the gas needs to be purified in purification...
Proceedings Papers

Proc. ASME. PVP2020, Volume 1: Codes and Standards, V001T01A016, August 3, 2020
Paper No: PVP2020-21406
... to those predicted in ASME, Code Case N-809 and results from material specific in-house testing to assist the understanding of the behaviour of mechanically short cracks. Keywords: Fatigue, Testing, Corrosion, Metals, Reactor/Nuclear, Structural Integrity NOMENCLATURE C(T) Compact Tensile DCPD Direct...
Proceedings Papers

Proc. ASME. PVP2009, Volume 5: High Pressure Technology; Nondestructive Evaluation Division; Student Paper Competition, 351-357, July 26–30, 2009
Paper No: PVP2009-77351
... 12 07 2010 High-temperature naphthenic acid corrosion (HNAC) behaviors of type 304 and type 316L stainless steel have been investigated in the laboratory with the experimental devices, that were designed and built by ourselves and had applied a patent, to evaluate the resistance...
Proceedings Papers

Proc. ASME. PVP2007, Volume 1: Codes and Standards, 287-302, July 22–26, 2007
Paper No: PVP2007-26755
... material. For complex loading waveforms (e.g. trapezoidal loading with hold periods at maximum or minimum load) it is possible predict the level of enhancement on the basis of the test data generated using simpler saw tooth loading regimes. Corrosion fatigue PWR cracking EAC loading conditions...
Proceedings Papers

Proc. ASME. PVP2007, Volume 7: Operations, Applications and Components, 387-394, July 22–26, 2007
Paper No: PVP2007-26161
... 21 08 2009 It is planned to use the highly corrosion resistant titanium grade 7 (Ti Gr 7) and a high strength titanium alloy (Ti Gr 29) to fabricate the drip shield for the Yucca Mountain repository. Ti Gr 7 contains 0.15% Palladium (Pd) to increase its corrosion performance, mainly...
Proceedings Papers

Proc. ASME. PVP2007, Volume 7: Operations, Applications and Components, 433-441, July 22–26, 2007
Paper No: PVP2007-26166
... 21 08 2009 Iron-based amorphous alloys possess enhanced hardness and are highly resistant to corrosion, which make them desirable for wear applications in corrosive environments. It was of interest to examine the behavior of amorphous alloys during anodic polarization in concentrated...
Proceedings Papers

Proc. ASME. PVP2008, Volume 6: Materials and Fabrication, Parts A and B, 715-720, July 27–31, 2008
Paper No: PVP2008-61227
... 24 07 2009 SPV50Q high strength steel is often used to fabricate liquefied petroleum gas (LPG) spherical tanks with larger capacity, and tanks are expected to free post weld heat treatment (PWHT) for avoiding the possible reduction in strength. Sulfide stress corrosion cracking (SSCC...
Proceedings Papers

Proc. ASME. PVP2003, Fatigue, Fracture, and Damage Analysis, 15-21, July 20–24, 2003
Paper No: PVP2003-1984
... series expansion of the limit state function is used in order to estimate the probability of failure associated with each corrosion defect in buried pipelines for long exposure period with unit of years. A failure probability model based on the von-Mises failure criterion is adapted. The log-normal...
Proceedings Papers

Proc. ASME. PVP2003, Flow-Induced Vibration, 97-106, July 20–24, 2003
Paper No: PVP2003-2079
... condensers and primary heat exchangers as well as in the U-bend and inlet regions of some earlier steam generators, resulting in severe component interactions causing substantial wear damage, erosion, corrosion, impacting and perhaps cavitation would seem to be the primary contributing mechanisms...
Proceedings Papers

Proc. ASME. PVP2005, Volume 1: Codes and Standards, 193-205, July 17–21, 2005
Paper No: PVP2005-71563
... rate, the data are best rationalized using a time domain ( a˙ e – a˙ i ) approach. Corrosion fatigue PWR cracking EAC Proceedings of ASME-PVP 2005: ASME Pressure Vessels and Piping Division Conference Denver, Colorado, July 17-21, 2005 between 150ºC and 300ºC. The degree...
Proceedings Papers

Proc. ASME. PVP2006-ICPVT-11, Volume 7: Operations, Applications, and Components, 561-569, July 23–27, 2006
Paper No: PVP2006-ICPVT-11-93418
... 21 07 2008 The ASTM standard B 265 provides the requirements for the chemical composition of titanium (Ti) alloys. It is planned to use corrosion resistant and high strength titanium alloys to fabricate the drip shield at the proposed Yucca Mountain Repository. Titanium grade (Gr) 7...