2 Flow stress of steel

Spittel, M.; Spittel, T.

doi:10.1007/978-3-540-44760-3_3

Cited by 2 publications

(3 citation statements)

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“…Following other models (e.g. Hensel-Spittel [2]), the stress decays exponentially with temperature was considered. Thus in the , view various flow stress curves are fitted by an exponential function: exp and the strain rate variation is at first neglected.…”

Section: Generation Of Synthetic Sets Of Flow Curvesmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

“…Physically consistent extrapolation of measured data within the complete multi-dimensional parametric space can be achieved. An integrated library of models can be extended by the user and already contains many popular equations like Hensel-Spittel [2] for flow curves. In this paper an example of how to generate a synthetic set of flow curves from JMatPro flow stress calculations coupled to measured data using the MatPlus system is shown.…”

Section: Introductionmentioning

confidence: 99%

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Hybrid Modeling of Materials Properties for Improved CAE-Simulations

Diekmann

Miron

Trasca

2016

MSF

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The new MatPlus software supports the multi-dimensional modelling of materials properties using different data sources. Extensive mathematical functions allow curve fitting of data from different sources to any constitutive models and selectively combining models and datapoints along different dimensions. Physically consistent extrapolation of measured data within the complete multi-dimensional parametric space can be achieved. An integrated library of models can be extended by the user and already contains many popular equations like Hensel-Spittel and Zerilli-Armstrong for flow curves.

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Section: Generation Of Synthetic Sets Of Flow Curvesmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Hybrid Modeling of Materials Properties for Improved CAE-Simulations

Diekmann

Miron

Trasca

2016

MSF

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Defect Reduction and Quality Optimization by Modeling Plastic Deformation and Metallurgical Evolution in Ferritic Stainless Steels

Mancini

Langellotto

Nunzio

et al. 2020

Metals

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Manufacturing of ferritic stainless steels flat bars is an important industrial topic and the steel 1.4512 is one of the most commonly used grades for producing this component. In this paper, the origin of some edge defects occurring during hot rolling of flat bars of this grade is analyzed and thermomechanical and microstructural calculations have been carried out to enhance the quality of the finished products by reducing the jagged borders defect on hot rolled bars. An accurate investigation has been carried out by analyzing the defects on the final product from both the macroscopic and microstructural point of view through the implementation of thermomechanical and metallurgical models in a finite element (FE) MSC Marc commercial code. Coupled metallurgical and damage models have been implemented to investigate the microstructural evolution of ferritic grain size and material damaging. Three levels of prior ferritic grain size (PFGS) and three furnace discharge temperatures have been considered in the thermo-mechanical simulations of the roughing passes. Rheological laws for modeling the evolution of ferritic grain have been modified to describe the specific cases simulated. Results have shown that the defect is caused by processing conditions that trigger an anomalous heating which, in turn, induces an uncontrolled grain growth on the edges. The work-hardened and elongated grains do not recrystallize during hot deformation. Consequently, they tend to squeeze out the surrounding softer and recrystallized matrix towards the edges of the bar where the fractures that characterizes the surface defect occur.

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2 Flow stress of steel

Cited by 2 publications

References 1 publication

Hybrid Modeling of Materials Properties for Improved CAE-Simulations

Hybrid Modeling of Materials Properties for Improved CAE-Simulations

Defect Reduction and Quality Optimization by Modeling Plastic Deformation and Metallurgical Evolution in Ferritic Stainless Steels

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