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The Variational Calculation of Bulk Moduli for Liquid Binary Alloys of Alkali Metals

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Dubinin N.

The bulk moduli of the Na-K, Na-Cs, and K-Rb liquid equiatomic alloys at T=373 K are calculated by the variational method with the hard-sphere reference system. The local Animalu-Heine model pseudopotential and Toigo-Woodruff exchange-correlation function are used for the calculation. A good agreement with experimental data is achieved.

Formability Evaluation of Aluminium Alloys by FLD Diagrams

88%

Petroušek P., Kočiško R., Kvačkaj T., Bidulský R., Bidulská J., Fedoriková A., Sabol P.

Acta Physica Polonica A

2017

vol. 131

issue 5

1344-1346

The goal of the present work is evaluated mechanical properties and forming limit diagrams of ambient rolled aluminium alloy based on AlMgSi. Forming limit diagrams are convenient and often used as a tool for the classification of the formability and the evaluation of the forming process of sheet materials. Forming limits of sheet metal are represented in the forming limit diagrams occurring by various deformation states. The most widely used type is the Keeler-Goodwin diagram. Input data got from static tensile test are important for formability evaluating of the thin sheet by mathematical simulations, such as tensile strength, yield strength, elongation, and the strain hardening exponent. The result is a consideration of the suitability of the material for stamping technology.

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2 Acta Physica Polonica A

2 2017

1 Bidulská J.

1 Bidulský R.

1 Dubinin N.

1 Fedoriková A.

1 Kočiško R.

1 Kvačkaj T.

1 Petroušek P.

1 Sabol P.

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The Variational Calculation of Bulk Moduli for Liquid Binary Alloys of Alkali Metals

Formability Evaluation of Aluminium Alloys by FLD Diagrams