A quantitative role of rafting on low cycle fatigue behaviour of a directionally solidified Ni-based superalloy through a cross-correlated image processing method

•Rafting extent of the superalloy was quantitatively characterized by a cross-correlated image processing method.•Rafting behaviour decreases the resistance to plastic deformation and the hardening effect of the γ' precipitates, which promote the accumulation of the fatigue damage and reduce th...

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Veröffentlicht in:	International journal of fatigue 2020-02, Vol.131, p.105305, Article 105305
Hauptverfasser:	Fan, Y.S., Yang, X.G., Shi, D.Q., Han, S.W., Li, S.L.
Format:	Artikel
Sprache:	eng
Schlagworte:	Chemical precipitation Crack propagation Cross-correlated image processing method Deformation resistance Directional solidification Fatigue failure Fatigue life Fatigue tests Fracture surfaces High temperature Image processing Life prediction Low cycle fatigue Materials fatigue Mechanical properties Morphology Ni-based superalloy Nickel Nickel base alloys Plastic deformation Precipitates Rafting Stress relaxation Superalloys
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