Dynamic Strain Ageing Effects in Low Cycle Fatigue

• DOI: 10.1515/htmp.1986.7.2-3.171
• Publication Date: 2011-05-06T08:32:09Z
• Authors: K. Bhanu Sankara ...; M. Valsan,; R. Sandhya,; S.L. Mannan,; P. Rodriguez,
• Keywords: Low-cycle fatigue; Strain (injury); Materials processing

This paper presents the role of Dynamic strain ageing (DSA) on Low Cycle Fatigue (LCF) properties a type 304 stainless steel at 823K.Dynamic in low cycle fatigue is manifested as peak saturation stress, minimum plastic strain, an increase work hardening rate and times associated with serrated stress-strain hysteresis loops.Dynamic also increases inhomogeneity deformation during fatigue.Persistent slip bands are observed interior material intergranular cracking.