The Influence of the Distance Between the Plate and the Top Nozzles During the Soft Quenching Process of the 6061 Aluminium Alloy Plates

Dobra, Gheorghe; Sava, Ioan; Stănică, Carmen Nicoleta; Petre, Marin; Ducu, Cătălin; Moga, Sorin Georgian; Florescu, Cristian Nicușor

doi:10.1007/978-3-030-05864-7_37

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“…The finite element method (FEM) is the most popular technique to predict Al-Mg-Si alloys residual stress (Wang et al , 2014; Dobra et al , 2019; Lin et al , 2019). Such a FEM model requires precise knowledge of the constitutive behavior of as-quenched materials, which depends on the temperature, strain rate, strain and microstructure (Robinson et al , 2014).…”

Section: Introductionmentioning

confidence: 99%

A modified Arrhenius model for as-quenched Al-Mg-Si alloy considering the effect of cooling rate

Guo

Ren

2020

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Purpose Accurate prediction of residual stress requires precise knowledge of the constitutive behavior of as-quenched material. This study aims to model the flow stress behavior for as-quenched Al-Mg-Si alloy. Design Methodology Approach In the present work, the flow behavior of as-quenched Al-Mg-Si alloy is studied by the hot compression tests at various temperatures (573–723 K), strain rates (0.1–1 s−1) and cooling rates (1–10 K/s). Flow stress behavior is then experimentally observed, and an Arrhenius model is used to predict the flow behavior. However, due to the fact that materials parameters and activation energy do not remain constant, the Arrhenius model has an unsatisfied prediction for the flow behavior. Considering the effects of temperatures, strain rates and cooling rates on constitutive behavior, a revised Arrhenius model is developed to describe the flow stress behavior. Findings The experimental results show that the flow stress increases by the increasing cooling rate, increasing strain state and decreasing temperature. In comparison to the experimental data, the revised Arrhenius model has an excellent prediction for as-quenched Al-Mg-Si alloy. Originality Value With the revised Arrhenius model, the flow behaviors at different quenching conditions can be obtained, which is an essential step to the residual stress prediction when the model is implemented in a finite element code, e.g. ABAQUS, in the future.

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Section: Introductionmentioning

confidence: 99%

A modified Arrhenius model for as-quenched Al-Mg-Si alloy considering the effect of cooling rate

Guo

Ren

2020

View full text Add to dashboard Cite

show abstract

The Influence of the Distance Between the Plate and the Top Nozzles During the Soft Quenching Process of the 6061 Aluminium Alloy Plates

Cited by 1 publication

References 6 publications

A modified Arrhenius model for as-quenched Al-Mg-Si alloy considering the effect of cooling rate

A modified Arrhenius model for as-quenched Al-Mg-Si alloy considering the effect of cooling rate

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