Wyniki wyszukiwania - BazTech

Ograniczanie wyników

1 Archives of Foundry Engineering

1 2010

Powiadomienia systemowe

Sesja wygasła!

Znaleziono wyników: 1

Liczba wyników na stronie

Wyniki wyszukiwania

Wyszukiwano:
w słowach kluczowych: application of alloys

Sortuj według:

Ogranicz wyniki do:

Optimization of the heat and mechanical treatment of the Al-Zn-Mg-Li alloy

Stegliński M., Kaczmarek Ł., Świniarski J., Stachurski W., Sawicki J.

Archives of Foundry Engineering

2010

Vol. 10, iss. 3 spec.

277--282

In terms of high strength in relation to mass the alloys of aluminium – lithium find more and more use mainly in aircraft industry like in spacecraft. At present intensive investigations are carried out in aim of use of Al – Li in automotive industry in particular to components subject to fatigue wear. It could contribute to replace transmission’s elements made from traditional materials by aluminium - lithium alloys. However low resistance to wear due to forming of thin Al2O3 layer which is reproducing in friction contact disqualifies using aluminium alloys in friction contact. From this point of view first stage of investigation was to enhance hardness properties of the substrate by applying thermo-mechanical treatment. In this article the results of heat treatment of Al-Zn-Mg-Li alloy were presented. During investigations optimum parameters (timetemperature) of the solution heat treatment were elaborated. Micro hardness on the cross-section were investigated. Phase, chemical composition and morphology were determined. It was found that hardness after thermo-mechanical treatment of Al-Zn-Mg-Li is about 20% higher than for AlCu4Mg1 (7075 –T6) alloy.