Hydrostatic extrusion of UFG aluminium

L. Olejnik; M. Kulczyk; W. Pachla; A. Rosochowski

doi:10.1007/s12289-009-0508-7

Hydrostatic extrusion of UFG aluminium

L. Olejnik, M. Kulczyk, W. Pachla, A. Rosochowski

Design, Manufacturing And Engineering Management

Research output: Contribution to journal › Article › peer-review

21 Citations (Scopus)

Abstract

The feasibility of hydrostatic extrusion (HE) of ultrafine grained (UFG) AA1070 has been investigated. The UFG material was produced by equal channel angular pressing (ECAP) using a scaled-up, two-turn, S-shape channel. Four passes of ECAP were followed by three passes of HE, which reduced the billet cross-section from a 26 x 26 mm2 square to 5 mm diameter round section. The average grain size of 0.6 micron after ECAP was reduced to 0.4 micron by HE. The strength and hardness increased by ECAP were further increased by HE. Ductility was reduced by ECAP, however, it remained constant during HE. The suggested sequence of operations seems to be a feasible option for producing UFG billets for shaping elongated products.

Original language	English
Pages (from-to)	621-624
Number of pages	3
Journal	International Journal of Material Forming
Volume	2
Issue number	Suppl 1
DOIs	https://doi.org/10.1007/s12289-009-0508-7
Publication status	Published - Aug 2009

Keywords

UFG aluminium
ECAP
hydrostatic extrusion
ultrafine grained aluminium
equal channel angular pressing

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10.1007/s12289-009-0508-7

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title = "Hydrostatic extrusion of UFG aluminium",

abstract = "The feasibility of hydrostatic extrusion (HE) of ultrafine grained (UFG) AA1070 has been investigated. The UFG material was produced by equal channel angular pressing (ECAP) using a scaled-up, two-turn, S-shape channel. Four passes of ECAP were followed by three passes of HE, which reduced the billet cross-section from a 26 x 26 mm2 square to 5 mm diameter round section. The average grain size of 0.6 micron after ECAP was reduced to 0.4 micron by HE. The strength and hardness increased by ECAP were further increased by HE. Ductility was reduced by ECAP, however, it remained constant during HE. The suggested sequence of operations seems to be a feasible option for producing UFG billets for shaping elongated products.",

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AU - Olejnik, L.

AU - Kulczyk, M.

AU - Pachla, W.

AU - Rosochowski, A.

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AB - The feasibility of hydrostatic extrusion (HE) of ultrafine grained (UFG) AA1070 has been investigated. The UFG material was produced by equal channel angular pressing (ECAP) using a scaled-up, two-turn, S-shape channel. Four passes of ECAP were followed by three passes of HE, which reduced the billet cross-section from a 26 x 26 mm2 square to 5 mm diameter round section. The average grain size of 0.6 micron after ECAP was reduced to 0.4 micron by HE. The strength and hardness increased by ECAP were further increased by HE. Ductility was reduced by ECAP, however, it remained constant during HE. The suggested sequence of operations seems to be a feasible option for producing UFG billets for shaping elongated products.

KW - UFG aluminium

KW - ECAP

KW - hydrostatic extrusion

KW - ultrafine grained aluminium

KW - equal channel angular pressing

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DO - 10.1007/s12289-009-0508-7

M3 - Article

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SP - 621

EP - 624

JO - International Journal of Material Forming

JF - International Journal of Material Forming

IS - Suppl 1

ER -

Hydrostatic extrusion of UFG aluminium

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Keywords

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