1988
DOI: 10.1007/bf00547473
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Mechanical properties of zinc-aluminium alloys extruded in the liquid-solid state

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Cited by 17 publications
(6 citation statements)
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“…Then, the squeeze of melt-extruded bar was clearly observed in the third stage. Lehuy [5], who observed the extrusion curve during a semisolid extrusion, has reported that the extruded bar was squeezed out when the extrusion pressure reached the maximum value after the occurrence of the squeezed liquid in the first stage. Fig.…”
Section: Squeezed Liquidmentioning
confidence: 98%
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“…Then, the squeeze of melt-extruded bar was clearly observed in the third stage. Lehuy [5], who observed the extrusion curve during a semisolid extrusion, has reported that the extruded bar was squeezed out when the extrusion pressure reached the maximum value after the occurrence of the squeezed liquid in the first stage. Fig.…”
Section: Squeezed Liquidmentioning
confidence: 98%
“…Kiuchi and Sugiyama [9] reported that the extrusion pressure for materials in the semisolid state dropped to 20-25% of that for conventional hot extrusion. According to the results of Taha and Suery [6], Pinsky et al [7], Luhuy [5], the extrusion pressure for semisolid extrusion is strongly dependent on the microstructure before the extrusion. They also reported that the extrusion pressure for non-dendrite structure billets needed 50-95% less power than that for dendrite structure billets during the deformation of material in the semisolid state.…”
Section: Introductionmentioning
confidence: 93%
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“…Rezultati novijih ispitivanja pokazali su da se primenom T4 režima [15] može povećati duktilnost ZA27 legure, dok primena T6 režima [16] omogućava poboljšanje odnosa čvrstoća-duktilnost-tvrdoća. U temperaturnoj oblasti β faze moguća je prerada ZA27 legure ekstruzijom [17].…”
Section: Uvodunclassified
“…O comportamento dos materiais reofundidos, quando submetidos à conformação, dependerá muito das características morfológicas da fase primária do material (LEHUY, 1988;LI, 1997). É provado que, embora em uma análise bidimensional as partículas de primeira fase sejam globulares e pareçam independentes, uma análise tridimensional pode revelar que dois ou mais glóbulos podem estar interconectados, formando uma estrutura mais complexa, a qual seria determinante para o comportamento viscoso do material já que um único grão cristalino poderia ser formado por um ou mais glóbulos (NIROUMAND, 2000).…”
Section: Características Morfológicas De Estruturas Reofundidasunclassified