The influence of heating rate during sintering on mechanical properties of Fe40Al sinters at room temperature

• Autorzy: Siemiaszko D. , Nowakowska I. , Komorek Z.

Identyfikatory

DOI

10.15199/28.2016.5.11

Warianty tytułu

PL

Wpływ szybkości nagrzewania podczas spiekania na właściwości mechaniczne spieków Fe40Al w temperaturze pokojowej

• Języki publikacji: EN

Abstrakty

EN

The results of a uniaxial compression test of Fe40Al (at. %) sintered powders are presented. Compression yield stress Rc0.2, ultimate strength Rcm, permanent deformation, and true compression strength at the maximum force point were determined. All Fe40Al sinters behaved like a plastic material; they were not brittle, and the sample after the compression test did not fall apart and was barrel-shaped. Observations of the microstructure revealed plastically-deformed grains. The obtained sinters were characterized by very high ultimate compressive strength (ok. 2700÷2800 MPa) and low yield stress (Rc0.2 approx. 280 MPa). This paper presents also XRD analyses, microstructure, and density of Fe40Al sinters.

PL

Podstawowym celem pracy było zbadanie wpływu szybkości nagrzewania podczas spiekania na właściwości mechaniczne spieków Fe40Al. W pracy zaprezentowano wyniki analizy dyfrakcji rentgenowskiej, pomiary gęstości, twardości sposobem Vickersa (HV0,5), a także właściwości wytrzymałościowe uzyskane w próbie ściskania.

Słowa kluczowe

EN

intermetallic alloys; iron aluminides; reaction synthesis; compression test; plasticity

PL

fazy intermetaliczne; żelazo–aluminium; spiekanie reakcyjne; próba ściskania; plastyczność

• Wydawca: Wydawnictwo SIGMA-NOT
• Czasopismo: Inżynieria Materiałowa
• Rocznik: 2016
• Tom: Vol. 37, nr 5
• Strony: 267--271
• Opis fizyczny: Bibliogr. 17 poz., fig., tab.

Twórcy

autor

Siemiaszko D.

• Faculty of Advanced Technologies and Chemistry, Military University of Technology, Warsaw, Poland

autor

Nowakowska I.

• Faculty of Advanced Technologies and Chemistry, Military University of Technology, Warsaw, Poland

autor

Komorek Z.

• Faculty of Advanced Technologies and Chemistry, Military University of Technology, Warsaw, Poland

Bibliografia

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• [8] Łyszkowski R., Bystrzycki J.: Hot deformation and processing maps of a Fe–Al intermetallic alloy. Materials Characterization 96 (2014) 196÷205.
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• [10] Sundar R. S., Baligidad R. G., Prasad Y. V. R. K., Sastry D. H.: Processing of iron aluminides. Materials Science and Engineering A258 (1998) 219÷228.
• [11] Yang Y., Baker I.: The influence of vacancy concentration on the mechanical behavior of Fe40Al. Intermetallics 6 (1998) 167÷175.
• [12] Xiao H., Baker I.: The relationship between point defects and mechanical properties in Fe–Al at room temperature. Acta Metall. Mater. 43 (1995) 391÷396.
• [13] Siemiaszko D., Mościcki R.: Kinetics study on the SHS reaction in massive samples with high heating rate in the Fe–Al system. J. of Alloys and Compound 632 (2015) 335÷342.
• [14] Siemiaszko D., Kowalska B., Jóźwik P., Kwiatkowska M.: The effect of oxygen partial pressure on microstructure and properties of Fe40Al alloy sintered under vacuum. Materials 8 (2015) 1513÷1525.
• [15] Lynch R. J., Heldt L. A.: Effects of annealing temperature on the mechanical properties of an Fe–36% Al alloy. Scripta Metallurgica et Materialia 30 (1994) 895÷898.
• [16] Klein O., Baker I.: Effect of heat-treatment on the tensile behavior of iron-rich FeAl and FeAl + B. Scripta Metallurgica et Materialia 30 (1994) 627÷632.
• [17] Nagpal P., Baker I.: Effect of cooling rate on hardness of FeAl and NiAl. Metallurgical Transactions A 21A (1990) 2281÷2282.

Uwagi

Opracowanie ze środków MNiSW w ramach umowy 812/P-DUN/2016 na działalność upowszechniającą naukę.