Role of Precipitation on the Hydrogen Embrittlement Behavior of IN 718

Role of Precipitation on the Hydrogen Embrittlement Behavior of IN 718

The role of aging conditions vis-à-vis the precipitate state on the hydrogen embrittlement behavior of IN 718 has been studied. Slow strain rate tests showed that the overaged condition was most susceptible to hydrogen embrittlement followed by the peak-aged and solution-annealed conditions. Hydroge...

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Veröffentlicht in:Transactions of the Indian Institute of Metals 2021-02, Vol.74 (2), p.223-233
Hauptverfasser: Dutta, Bidyut, Ajay Krishnan, M., Raja, V. S.
Format: Artikel
Sprache:eng
Schlagworte:
Annealing
Boundaries
Chemical precipitation
Chemistry and Materials Science
Corrosion and Coatings
Grain boundaries
Grain boundary diffusion
Hydrogen
Hydrogen embrittlement
Hydrogen permeation
Materials Science
Metallic Materials
Nickel
Original Article
Precipitates
Slow strain rate
Tribology
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Zusammenfassung:The role of aging conditions vis-à-vis the precipitate state on the hydrogen embrittlement behavior of IN 718 has been studied. Slow strain rate tests showed that the overaged condition was most susceptible to hydrogen embrittlement followed by the peak-aged and solution-annealed conditions. Hydrogen permeation studies carried out using Devanathan–Stachurski cell showed that the hydrogen diffusivity values varied in the order: overaged condition 
ISSN:0972-2815
0975-1645
DOI:10.1007/s12666-020-02136-y