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Keywords: Hydrogen Embrittlement
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Proceedings Papers

Proc. ASME. PVP2022, Volume 3: Fluid-Structure Interaction; High Pressure Technology, V003T05A006, July 17–22, 2022
Paper No: PVP2022-80128
..., we anticipate the developed passivation film can inhibit hydrogen embrittlement of SUS304. gas barrier coating SUS304 stainless steel hydrogen embrittlement wet coating process slow strain rate tensile (SSRT) test Proceedings of the ASME 2022 Pressure Vessels & Piping Conference PVP2022...
Proceedings Papers

Proc. ASME. PVP2022, Volume 4A: Materials and Fabrication, V04AT06A011, July 17–22, 2022
Paper No: PVP2022-84723
... materials. additive manufacturing stainless steel hydrogen embrittlement Proceedings of the ASME 2022 Pressure Vessels & Piping Conference PVP2022 July 17-22, 2022, Las Vegas, Nevada, USA PVP2022-84723 FRACTURE AND TENSILE CHARACTERIZATION OF ADDITIVELY MANUFACTURED TYPE 300 SERIES STAINLESS...
Proceedings Papers

Proc. ASME. PVP2022, Volume 4B: Materials and Fabrication, V04BT06A031, July 17–22, 2022
Paper No: PVP2022-84647
... Abstract Simple screening technology for hydrogen embrittlement (HE) of steels for hydrogen energy facilities using the in-situ small punch (SP) test method has been established. The HE behaviors of API X70 steel base metal and welds for pipelines were investigated using the relative reduction...
Proceedings Papers

Proc. ASME. PVP2022, Volume 4B: Materials and Fabrication, V04BT06A011, July 17–22, 2022
Paper No: PVP2022-84640
... and hydrogen embrittlement. Accurate estimation of the MPT is important for owners, who are looking for the lowest MPT values to reduce start-up time. Several methods to develop an MPT have been adopted in the past mainly based upon experimental data and/or acquired from material exposed in reactors over time...
Proceedings Papers

Proc. ASME. PVP2022, Volume 4B: Materials and Fabrication, V04BT06A028, July 17–22, 2022
Paper No: PVP2022-84184
... cycle fatigue test. The cycles to failure were significantly reduced. Investigations of the fracture surfaces showed clear differences in crack growth of non-charged and pre-charged tensile and fatigue specimen. hydrogen embrittlement gaseous hydrogen charging hydrogen measurements low cycle...
Proceedings Papers

Proc. ASME. PVP2022, Volume 4B: Materials and Fabrication, V04BT06A022, July 17–22, 2022
Paper No: PVP2022-80639
... explosion welding bond interface bond strength disbonding test hydrogen embrittlement Proceedings of the ASME 2022 Pressure Vessels & Piping Conference PVP2022 July 17-22, 2022, Las Vegas, Nevada, USA PVP2022-80639 DETACLADTM CHARACTERIZATION FOR HIGH-TEMPERATURE AND HIGH-PRESSURE HYDROGEN SERVICE...
Proceedings Papers

Proc. ASME. PVP2022, Volume 4B: Materials and Fabrication, V04BT06A013, July 17–22, 2022
Paper No: PVP2022-84862
... treatment under high hydrogen pressure. The resistance to hydrogen induced disbonding was evaluated on the weld overlays. Finally, the influence of step cooling treatment on impact toughness was also investigated for both base and weld metal. 9Cr-1Mo-V Grade 91 type 2 hydrogen embrittlement...
Proceedings Papers

Proc. ASME. PVP2022, Volume 4B: Materials and Fabrication, V04BT06A048, July 17–22, 2022
Paper No: PVP2022-84744
... step loading technique ASTM F1624 threshold stress hydrogen embrittlement punch rate Proceedings of the ASME 2022 Pressure Vessels & Piping Conference PVP2022 July 17-22, 2022, Las Vegas, Nevada, USA PVP2022-84744 OVERVIEW OF SUITABLE METHODOLOGIES FOR THRESHOLD STRESS DETERMINATION BY SMALL...
Proceedings Papers

Proc. ASME. PVP2022, Volume 4B: Materials and Fabrication, V04BT06A030, July 17–22, 2022
Paper No: PVP2022-84462
... hydrogen embrittlement first-principles calculation diffusion carburizing Abstract Carburizing treatment can improve the carbon content of the workpiece material, and obtain higher contact fatigue strength, bending fatigue strength, as well as higher surface hardness. After carburizing...
Proceedings Papers

Proc. ASME. PVP2021, Volume 4: Materials and Fabrication, V004T06A055, July 13–15, 2021
Paper No: PVP2021-62436
.... On the indicative of hydrogen embrittlement were observed on the other hand, internal hydrogen (material saturated with hydrogen fracture surfaces of hydrogen-precharged specimens, which is prior to testing in a process called precharging) ensures that consistent with the loss of ductility. hydrogen is present...
Proceedings Papers

Proc. ASME. PVP2021, Volume 4: Materials and Fabrication, V004T06A054, July 13–15, 2021
Paper No: PVP2021-62195
...Abstract Abstract A simple screening technique of hydrogen embrittlement (HE) of steels for hydrogen energy facilities using an in-situ small-punch (SP) test method under external hydrogen condition has been established. Using this method, we investigated the HE behaviors of API X70 steel welds...
Proceedings Papers

Proc. ASME. PVP2021, Volume 4: Materials and Fabrication, V004T06A050, July 13–15, 2021
Paper No: PVP2021-61821
.... Integrity management of the existing infrastructure requires a WCL Weld Center Line risk evaluation for the planned hydrogen introduction and the challenge of hydrogen embrittlement needs to be considered. HAZ Heat Affected Zone The aim of the current study was to evaluate the effect of blending different...
Proceedings Papers

Proc. ASME. PVP2021, Volume 2: Computer Technology and Bolted Joints; Design and Analysis, V002T03A021, July 13–15, 2021
Paper No: PVP2021-61954
... pressurization temperature (MPT) envelopes for these reactors, both temper and hydrogen embrittlement effects must be considered. However, there are no specific rules to evaluate loss of toughness due to hydrogen embrittlement in the design Codes / fitness-for-service Standards. Earlier, Japanese steel...
Proceedings Papers

Proc. ASME. PVP2021, Volume 3: Fluid Structure Interaction; High Pressure Technology, V003T05A001, July 13–15, 2021
Paper No: PVP2021-60453
... the mechanical properties and fatigue endurance were deeply investigated in recent years, the resistance of SLMed Inconel 718 to the Hydrogen Embrittlement (HE) requires further investigation. The present paper deals with the effects of the SLM process on reducing the strength and ductility of Inconel 718...
Proceedings Papers

Proc. ASME. PVP2020, Volume 6: Materials and Fabrication, V006T06A083, August 3, 2020
Paper No: PVP2020-21021
...Abstract Abstract It has been reported that hydrogen accumulation along grain boundaries (GBs) is an important process in the hydrogen embrittlement (HE) in pure Ni. However, there are no quantitative studies that elucidate the behavior of hydrogen accumulation and its effect on HE...
Proceedings Papers

Proc. ASME. PVP2020, Volume 6: Materials and Fabrication, V006T06A084, August 3, 2020
Paper No: PVP2020-21122
... and succeeded in predicting the FCG acceleration ratio observed on H1150. This model was also successfully applied to a low-alloy steel with a comparable UTS (1002 MPa) tested in gaseous hydrogen. hydrogen embrittlement precipitation hardened stainless steels fatigue life test fatigue crack growth...
Proceedings Papers

Proc. ASME. PVP2020, Volume 6: Materials and Fabrication, V006T06A085, August 3, 2020
Paper No: PVP2020-21228
... on flow stress. In addition, the L485-MB pipeline steel presents a shear type fracture mode in high partial pressure of hydrogen, whereas a cup and cone type fracture were observed in air, NG and low partial pressure of hydrogen in NG (0.2 MPa H 2 ). hydrogen embrittlement low alloy steel H 2 -NG...
Proceedings Papers

Proc. ASME. PVP2020, Volume 6: Materials and Fabrication, V006T06A105, August 3, 2020
Paper No: PVP2020-21524
... subsequently increased up to the specimen’s failure. In a previous work, it was indicated how to implement this technique for Small Punch testing of steels in hydrogen embrittlement scenarios, adapting the steps duration. This proposal allows to obtain a threshold load by using at least 3 specimens in a total...
Proceedings Papers

Proc. ASME. PVP2020, Volume 6: Materials and Fabrication, V006T06A087, August 3, 2020
Paper No: PVP2020-21241
...Abstract Abstract Recently, a simple screening technique based on the quantitative evaluation of the hydrogen embrittlement (HE) sensitivity of the metallic materials using an in-situ small-punch (SP) test method was developed by the author group. The in-situ SP test can be easily carried out...
Proceedings Papers

Proc. ASME. PVP2020, Volume 5: High Pressure Technology, V005T05A004, August 3, 2020
Paper No: PVP2020-21534
...Abstract Abstract Exposure of metallic parts to cathodic protection (CP) in sea water leads to production and diffusion of atomic Hydrogen into the metal matrix. Absorption of atomic Hydrogen into the metal could lead to hydrogen embrittlement (HE). In order to study the influence of stresses...