Implementation of Precipitation and Ripening of Second-Phase Particles in the Constitutive Modelling of Creep

Reichert, Birgit; Estrin, Yuri; Schuster, H.

doi:10.1016/s1359-6462(98)00041-4

Cited by 18 publications

(2 citation statements)

References 8 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…the plastic deformation is caused by processes such as precipitate growth that are diffusion controlled. Up to now to the authors' knowledge only one explicit implementation of ripening of second-phase particles in the modelling of creep was made (Reichert et al, 1998). In that work the time dependence of the average particle distance (and thus the distance for free dislocation glide) is the determining parameter for creep; the model is applied to high temperature power law creep.…”

Section: Introductionmentioning

confidence: 99%

Precipitate coarsening-induced plasticity: Low temperature creep behaviour of tempered SAE 52100

Morra

Radelaar

Yandouzi

et al. 2009

International Journal of Plasticity

View full text Add to dashboard Cite

Section: Introductionmentioning

confidence: 99%

Precipitate coarsening-induced plasticity: Low temperature creep behaviour of tempered SAE 52100

Morra

Radelaar

Yandouzi

et al. 2009

International Journal of Plasticity

View full text Add to dashboard Cite

“…This is achieved by considering the obstacle spacing Lgeometric in equation (2) as a variable representing both a decrease of particle spacing due to nucleation and its increase if ripening becomes predominant. In a recent work [12] the new variable Lc was expressed as a function of the volume fraction jv and the mean radius r of second phase particles, both varying with time t:…”

Section: Methodsmentioning

confidence: 99%

Extension of a constitutive model describing the inelastic behaviour of a precipitation hardened alloy

Reichert

1999

Steel Research

View full text Add to dashboard Cite

The one internal variable model by Kocks, Mecking and Estrin has been applied for the description of the hot tensile and creep behaviour under constant loading conditions of Alloy 800H, a carbide precipitation strengthened high temperature alloy. The model was extended by incorporating an expression for a mean free path of mobile dislocations which depends on the kinetics of the precipitation and ripening process of the secondary carbides. Microscopy and mechanical data for three different heats of Alloy 800H at 900°C were evaluated to enable comparison between calculations using the extended model and experimental data. Difficulties were caused by the complex precipitation behaviour of the alloy in which both larger carbides of type M23C6 and smaller ones of type M(C,N) are formed in the investigated range of temperature. Although the microstructural data available is not sufficient for a reliable quantitative description of the evolution with time of the average carbide spacing a qualitative agreement between calculations and mechanical data gives a preliminary verification of the developed extended model.

show abstract

Untitled

2003

Thermodynamics, Microstructures and Plasticity

View full text Add to dashboard Cite

Implementation of Precipitation and Ripening of Second-Phase Particles in the Constitutive Modelling of Creep

Cited by 18 publications

References 8 publications

Precipitate coarsening-induced plasticity: Low temperature creep behaviour of tempered SAE 52100

Precipitate coarsening-induced plasticity: Low temperature creep behaviour of tempered SAE 52100

Extension of a constitutive model describing the inelastic behaviour of a precipitation hardened alloy

Untitled

Contact Info

Product

Resources

About