The structure of FeAl and Fe3Al-5%Cr intermetallic phase - based alloys after hot deformation processes

• Autorzy: Bednarczyk, I. , Kuc, D. , Niewielski, G.
• Języki publikacji: EN

Abstrakty

EN

Purpose: The major problem restricting universal employment of intermetallic phase base alloy is their low plasticity which leads to hampering their development as construction materials. The following work concentrates on the analysis of microstructure and plasticity of ordered Fe3Al (D03) and FeAl (B2) during hot plastic deformation process. Design/methodology/approach: After casting and annealing, alloy specimens were subjected to axialsymmetric compression in the Gleeble 3800 simulator at temperatures ranging from 800, 900 and 1000°C at 0.1s-1strain rate. In order to analyse the processes which take place during deformation, the specimens after deformation were intensely cooled with water. Structural examination was carried out using light microscopy. The examination of the substructure was carried out by transmission electron microscopy (TEM). Findings: The microstructure analyses applying optic and electron microscopy have revealed the structure reconstruction processes occurring in Fe3Al and FeAl alloys. It has been shown that different mechanisms of the structural changes ensue from the thermal plastic strain in the investigated alloys, which influences their technological plasticity. Practical implications: The research carried out enabled the understanding of the phenomena taking place during deformation and annealing of the investigated alloy. The results will constitute the basis for modelling the structural changes. Originality/value: The results obtained are vital for designing an effective thermo - mechanical processing technology for the investigated Fe3Al and FeAl alloy.

Słowa kluczowe

PL

stopy metaliczne; krzywa płynięcia; substruktura

EN

metallic alloys; flow curve; substructure; recrystallization; rekrystalizacja

• Czasopismo: Archives of Materials Science and Engineering
• Rocznik: 2008
• Tom: Vol. 30, nr 1
• Strony: 5-8
• Opis fizyczny: Bibliogr. 15 poz.

Twórcy

autor

Bednarczyk, I.

autor

Kuc, D.

autor

Niewielski, G.

• Faculty of Materials Science and Metallurgy, Silesian University of Technology, ul. Krasińskiego 8, 40-019 Katowice, Poland,

Bibliografia

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