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- W4385887907 abstract "Hydrogen cracking has been and continues to be observed in both heat-affected zones and weld metals. High carbon equivalent weldment heat-affected zones (HAZ) combined with rapid cooling have been related to the development of hydrogen cracking susceptible microstructures. Weld metal cracking is observed in both high and low strength weldments and is a particular concern for root passes due to the use of cellulosic electrodes, parent metal dilution, applied load, and weld fault stress riser effects promoting cracking. The risk of HAZ and weld cracking are increased for repair and in-service welds and/or welds deposited on older generation materials (e.g., pipe or fittings) and this can pose a significant risk to the integrity of welded connections. This report presents the result of the first year of research toward the application and extension of the �Slow Bend� testing technique used to quantify the hydrogen cracking susceptibility of a weldment. This testing is being used to quantify the susceptibility of a microstructure to hydro-gen cracking by defining the critical combinations of strain and hydrogen concentration that result in cracking in a given material. The testing and modelling results complete in this first year of work are planned to support the definition of a Hydrogen Embrittlement characterization technique considering the effects of strain and hydrogen concentration for a material." @default.
- W4385887907 created "2023-08-17" @default.
- W4385887907 creator A5064158985 @default.
- W4385887907 date "2016-03-10" @default.
- W4385887907 modified "2023-10-16" @default.
- W4385887907 title "PR-214-144500-R01 Weld Hydrogen Cracking Susceptibility Characterization" @default.
- W4385887907 doi "https://doi.org/10.55274/r0010924" @default.
- W4385887907 hasPublicationYear "2016" @default.
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