A crystal plasticity investigation of slip system interaction, GND density and stored energy in non-proportional fatigue in Nickel-based superalloy

[Display omitted] •Non-proportional loading paths imposed on nickel-based superalloy using crystal plasticity.•Potential mechanistic explanation for non-proportional detrimental effects in fatigue proposed.•Non-proportionality giving more slip activations, driving up GND and leading to shorter lives...

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Veröffentlicht in:	International journal of fatigue 2020-10, Vol.139, p.105782-11, Article 105782
Hauptverfasser:	Lu, Xu, Dunne, Fionn P.E., Xu, Yilun
Format:	Artikel
Sprache:	eng
Schlagworte:	Crystal dislocations Crystal plasticity Dislocation density Fatigue life Flux density Internal energy Life prediction Materials fatigue Metal fatigue Multiaxial fatigue Nickel Nickel base alloys Nickel-based superalloy Non-proportional loading Plastic properties Slip Superalloys
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