Numéro
J. Phys. IV France
Volume 03, Numéro C7, Novembre 1993
The 3rd European Conference on Advanced Materials and Processes
Troisiéme Conférence Européenne sur les Matériaux et les Procédés Avancés
Page(s) C7-829 - C7-834
DOI http://dx.doi.org/10.1051/jp4:19937130
The 3rd European Conference on Advanced Materials and Processes
Troisiéme Conférence Européenne sur les Matériaux et les Procédés Avancés

J. Phys. IV France 03 (1993) C7-829-C7-834

DOI: 10.1051/jp4:19937130

Study on plastic forming of metal alloys in partly-liquid state

W. LAPKOWSKI, M. PIETRZYK and Z. KEDZIERSKI

Akademia Gorniczo-Hutnicza, University of Mining and Metallurgy, Mickiewicza 30, 30-059 Krakow, Poland


Abstract
The paper presents a fragment of the work on the formability of alloys in the partly liquid state carried out at the University of Mining and Metallurgy in Krakow, Poland. The process of upsetting of cylindrical samples is investigated and the aluminum alloy 2024 (ASTM) of a relatively large crystallization temperature range is used as a testing material. The investigation focuses on the effect of the solid fraction (weight percentage of solid component in the alloy, pre-heated to the temperature above the solidus point) on the process parameters. Thermal-mechanical finite-element model developed for the compression test and adapted to the partly liquid conditions is used for the calculations of the distributions of strain rates, strains and temperatures. The micrographs of the samples after preheating and after deformation in both solid and partly liquid conditions are also presented in the paper.



© EDP Sciences 1993