Journal ArticleDOI
A combined deformation map-ductility exhaustion approach to creep-fatigue analysis
R.H. Priest,E.G. Ellison +1 more
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TLDR
In this paper, the authors used deformation mechanism maps for a 1CrMoV steel to describe damage formation under high temperature cyclic-hold test conditions and used a grain boundary sliding regime to indicate the onset of wedge crack formation.About:
This article is published in Materials Science and Engineering.The article was published on 1981-06-01. It has received 104 citations till now. The article focuses on the topics: Grain Boundary Sliding & Deformation mechanism.read more
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Nucleation and growth of cracks and cavities under creep-fatigue interaction
Journal ArticleDOI
Analysis of the hysteresis loops of a martensitic steel: Part I: Study of the influence of strain amplitude and temperature under pure fatigue loadings using an enhanced stress partitioning method
TL;DR: In this article, a study of the cyclic stress partitioning is presented, where the authors identify the microstructural mechanisms leading to the softening effect usually presented by martensitic steels under cyclic loadings.
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A modified strain energy density exhaustion model for creep–fatigue life prediction
TL;DR: In this paper, a modified strain energy density exhaustion model was proposed to predict the tension hold-only creep-fatigue life for high temperature components, which exhibits high accuracy due to the reasonable evaluation of creep damage.
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Creep – fatigue damage accumulation and interaction diagram based on metallographic interpretation of mechanisms
R.P. Skelton,D. Gandy +1 more
TL;DR: In this article, the effect of creep damage upon fatigue endurance in elevated temperature low cycle fatigue is well established and has become known as the "creep- fatigue interaction" and has been identified as a narrow region where a transgranular crack becomes intergranular as creep damage develops.
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A method of creep damage summation based on accumulated strain for the assessment of creep‐fatigue endurance
TL;DR: In this article, a method of combining long term creep data with relatively short term mechanical behaviour to provide an estimate of creep-fatigue endurance is presented, based on a difference in strain rate around the cycle and the associated variation in ductility with strain rate.
References
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Journal ArticleDOI
A first report on deformation-mechanism maps
TL;DR: Deformations-mechanism maps as discussed by the authors display the fields of stress and temperature in which a particular mechanism of plastic flow is dominant, i.e., dislocation glide, diffusional flow and dislocation creep.
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A theory of the fracture of metals
TL;DR: In this paper, a theory of the fracture of metals is presented, which is based on the theory of fracture theory of metal fracture, and it is proved that the theory is correct.
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Deformation mechanism maps based on grain size
TL;DR: In this article, the relative contributions of various deformation processes are estimated as a function of stress at different grain sizes, and a simple method of constructing these maps is presented, requiring only a knowledge of the relevant constitutive equations for the various mechanisms and a minimum of calculation.
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Intergranular fracture during power-law creep
G.H. Edward,M.F. Ashby +1 more
TL;DR: In this article, the growth of an array of grain boundary voids during creep deformation is analysed, and the growth by power-law creep alone cannot completely explain the observed times ( t ǫ ) or strains ( ϵ ǒ ) to fracture.
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Grain boundary sliding and deformation mechanism maps
TL;DR: In this paper, the influence of grain boundary sliding (GBS) on the nature of deformation maps for aluminum and nickel is considered, and it is shown that large portions of such deformation map are dominated by GBS.