The role of ECAP in densification behaviour of PM aluminium alloy

• Autorzy: Bidulska J. , Kocisko R. , Kovacova A. , Dutkiewicz J.

Warianty tytułu

PL

Rola procesu ECAP w zagęszczaniu proszków ze stopów aluminium

• Języki publikacji: EN

Abstrakty

EN

The present paper focused on the role of ECAP process on the densification behaviour of PM aluminium alloys. An aluminium powder Al-Mg- Si-Cu-Fe was used as material to be investigated. After applying different compacting pressures in the range of 400 to 700 MPa, specimens were dewaxed at 400°C for 60 min. Sintering was carried out in a vacuum furnace at 610°C for 30 min. The specimens were ECAPed for 1 pass. Structural characterization was carried out on the minimum of 10 different image fields for pressed and sintered specimens as well ECAPed specimens. A decrease of porosity was revealed for all specimens.

PL

Praca dotyczy zastosowania technologii przeciskania przez kanał kątowy ECAP dla zagęszczania proszków stopów aluminium. Badano proszek stopu aluminium Al-Mg-Si-Cu-Fe. Po zastosowaniu prasowania przy różnych ciśnieniach od 400÷700 MPa, próbki oczyszczano z substancji organicznych przez wyżarzanie w 400°C przez 60 min. Następnie próbki spiekano w temperaturze 610°C przez 30 min. Następnie poddano je przeciskaniu w kanale ECAP. Porównano struktury próbek spiekanych i przeciskanych w kilku miejscach i stwierdzono znaczny spadek porowatości.

Słowa kluczowe

EN

ECAP; aluminium alloys; powder densification

PL

ECAP; stopy aluminium; zagęszczanie proszków

• Wydawca: Wydawnictwo SIGMA-NOT
• Czasopismo: Inżynieria Materiałowa
• Rocznik: 2011
• Tom: Vol. 32, nr 2
• Strony: 82--85
• Opis fizyczny: Bibliogr. 23 poz., rys., tab.

Twórcy

autor

Bidulska J.

autor

Kocisko R.

autor

Kovacova A.

autor

Dutkiewicz J.

• Department of Metals Forming, Faculty of Metallurgy, TU of Kosice,

Bibliografia

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