Hydrogen environmentally assisted cracking during static loading of AA7075 and AA7449

Some newer 7xxx aluminium aerospace alloys seem to be more sensitive to hydrogen environmentally assisted cracking (HEAC) in moist air than older alloys. This investigation compares the relative propensity of new (AA7449) and old (AA7075) alloys to cracking during static loading in warm, moist air (...

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Veröffentlicht in:	Materials science & engineering. A, Structural materials : properties, microstructure and processing Structural materials : properties, microstructure and processing, 2020-01, Vol.772, p.138662, Article 138662
Hauptverfasser:	De Francisco, Unai, Larrosa, Nicolas O., Peel, Matthew J.
Format:	Artikel
Sprache:	eng
Schlagworte:	4-point bending AA7075 AA7449 Alloys Aluminum base alloys Bend tests Crack propagation Cracks Environmentally assisted cracking Grain boundaries Hydrogen environmentally assisted cracking Microstructurally short cracking Moist air Morphology Relative humidity Stresses
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