The influence of thermo-mechanical treatment on the structure and plasticity of FeAl intermetallic phase-base alloys

• Autorzy: Bernstock-Kopaczyńska E. , Bednarczyk I. , Jabłońska M. , Niewielski G. , Kuc D.

Warianty tytułu

PL

Wpływ obróbki cieplno-plastycznej na strukturę i plastyczność stopów na osnowie faz międzymetalicznych

• Języki publikacji: EN

Abstrakty

EN

Alloys based on intermetallic phases from the Fe-Al system they belong to a group of high-temperature creep resisting materials of advantageous physicochemical and mechanical properties at an elevated and high temperature. In general, limitation on the capacity for a broad application of intermetals from the Fe-AI system, e.g. as an alternative to expensive alloy steels of specific properties, is their insufficient plasticity, which is a factor inhibiting further their development as constructional materiaIs. Under this study, research has been conducted on the capacity for forming alloys based on intermetallic phases from the Fe-AI system, via thermo-mechanical processing. In the present work, the possibility of forming FeAI-intermetallic-phase-based alloys in thermo-mechanical treatment (TMT) has been studied. After casting and annealing, alloy specimens were subjected to axial-symmetric compression in the GIeeble 3800 simulator in the range of 700-1200 C at 0.01, 0.1, 1.0, 10 S-1 strain rates. In order to analyze the proccsses which take place during deformation, the specimens after deformation were intensely cooled with water. Structural examination was carried out using light and electron microscopy. The impact of hot rolling process parameters on the structure of intermetallic-phase-based FeAI alloys and properties has bceen determined. The results will constitute the basis for modelling the structural changes in FeAI intermetallic alloy.

PL

W pracy oceniono możliwość kształtowania struktury i właściwości stopu na osnowie fazy międzymetalicznej z układu Fe-Al na drodze obróbki cieplno-plastycznej. Analizowano wpływ parametrów odkształcania na strukturę i technologiczną plastyczność stopu Fe-38% at. Al. Przeprowadzono próbę osiowosymetrycznego ściskania na symulatorze Gleeble 3800, dla zróżnicowanych parametrów odkształcania w zakresie temperatury 700-1200 C z prędkością odkształcenia [...]. Na podstawie analizy procesu ściskania próbki walcowano na walcarce kwarto i badano strukturę stopu po kolejnych etapach przetwarzania. Uzyskane wyniki badań będą stanowiły podstawę do opracowania technologii obróbki cieplno-plastycznej intermetalików z układu Fe-Al.

Słowa kluczowe

EN

FeAl alloys; intermetallic; test compression; thermal plastic deformation; dynamic recrystalization

PL

obróbka cieplno-plastyczna; stopy; intermetaliki

• Wydawca: Springer ; Wrocław University of Science and Technology
• Czasopismo: Archives of Civil and Mechanical Engineering
• Rocznik: 2008
• Tom: Vol. 8, no 3
• Strony: 15--22
• Opis fizyczny: Bibliogr. 10 poz., rys., wykr.

Twórcy

autor

Bernstock-Kopaczyńska E.

autor

Bednarczyk I.

autor

Jabłońska M.

autor

Niewielski G.

autor

Kuc D.

• Silesian University of Technology, Krasińskicgo 8, 40-019 Katowice, Poland

Bibliografia

• [1] Stoloff N.S.: Iron aluminides: present status and future, Materials Science and Engineering, A 258, 1998, pp. 1-14.
• [2] Kuc D., Niewielski G., Jabłońska M., Bednarczyk I.: Deformability and Recrystallization of Fe-Al intermetallic phase - base alloy, Journal of Achievements in Materials and Manufacturing Engineering, 17, 2006, pp. 107-110.
• [3] Pike L.M.C., Liu. T.: The effect of vacancies on the environmental yield strength dependence of boron-free and boron-doped Fe-40Al, Intermetallics, 8, 2000, pp. 1413-1416.
• [4] Baligidad R.G., Radhakrishna A.: Effect of hot rolling and heat treatment on structure and properties of high carbon Fe-Al alloys, Materiale Science and Engineering, A 308, 2001, pp. 136-142.
• [5] Jabłońska M., Rodak K., Niewielski G.: Analysis of the structure of the intermetallic FeAl40 after hot deformation, Inżynieria Materiałowa, No. 3, 2004, pp. 145-148.
• [6] Niewielski G.,Jabłońska M,: Characteristics and applications of the intermetallics on the Fe-Al base, No. 2, 2007, pp. 43-46.
• [7] Bystrzycki J, Varin R.A, Bojar. Z : Recent advances in researches on alloys on the ordered intermetallic phases with alumninium content, Inżynieria Materiałowa, No. 5, 1996, pp. 137-148.
• [8] Szkiniarz W., Hadasik E., Mikuszewski T: Microstructure and properties formed by hot rolling of FeAl based alloy, Inżynieria Materiałowa, No. 6, 2004, pp. 844-848.
• [9] Yamaguchi H., Ito K.: High-temperature structural intermetallics, Acta Materialia, 48, 2000, pp. 307-322.
• [10] Jabłońska M., Bernstock E., Jasik A.: Microstructure and mechanical properties of intermetallics on the base of Fe-Al alloy obtained by casting, Archives of Materials Science and Engineering, Vol. 28, 2007, pp. 625-628.