The effect of stress-state on the large strain inelastic deformation behavior of 304L stainless steel
Article Abstract:
Large strain inelastic deformation behaviour of 304L stainless steel changes with different stress-states. Transmission electron microscopy and magnetization results show that the effective stress level and gamma to alpha' martensitic transformation are higher in compression than in torsion. These factors are higher in torsion of compressively prestrained material than in pure material. The axial extension occurring during a free-end torsion test is independent of the compressive prestrain. The samples undergo compression, free-end torsion, compression followed by torsion, and torsion followed by tension.
Publication Name: Journal of Engineering Materials and Technology
Subject: Science and technology
ISSN: 0094-4289
Year: 1996
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A creep-fatigue-oxidation microcrack propagation model for thermomechanical fatigue
Article Abstract:
A microcrack propagation model for predicting the high temperature fatigue (HTF) life of metallic materials is discussed. The model is capable of establishing the relations between isothermal HTF and thermomechanical fatigue by analyzing the related parameters, such as the fatigue, creep and oxidation components and expressing them in numerical forms. Evaluation of the model reveals that it is useful in the study of the relationship between a material's life and the applied thermomechanical strain.
Publication Name: Journal of Engineering Materials and Technology
Subject: Science and technology
ISSN: 0094-4289
Year: 1992
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Thermomechanical fatigue behavior of a directionally solidified Ni-base superalloy
Article Abstract:
A continuum crystal plasticity model is used to simulate the material behavior of a directionally solidified Ni-base superalloy in the longitudinal and transverse orientations. A physically based model is developed for correlating crack initiation life based on the experiment life data and predictions are made using the crack initiation model.
Publication Name: Journal of Engineering Materials and Technology
Subject: Science and technology
ISSN: 0094-4289
Year: 2005
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