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A study of the mechanical properties of amorphous iron-based alloy produced by the injection-casting method

Szota M., Supernak M., Bukowska A., Nabialek M, Pietrusiewicz P.

Journal of Achievements in Materials and Manufacturing Engineering

2013

Vol. 61, nr 2

289--293

Purpose: The paper present determine the basic mechanical properties of amorphous alloy based on iron (Fe61Co10Zr5W2Y2B2), produced by injection. Design/methodology/approach: The study was carried out the following steps: at fist microhardness were performed with using microhardness tester Future Tech FM 7 by Vicker’s method with load 970.7 mN. Second step were performed abrasion tests on ball-tester with zirconium ball. These tests were performed in 3 steps – first (study was conducted in one hour), second (study was conducted in two hours), third (study was conducted in three hours). Third kind of study was roughness performed on profilometer Hommel T1000. The sample surface was examined in the section 4.8 mm. After high-resolution photos were then taken with a scanning electron microscope (JEOL JSM - 6610 LV). In contrast images with areas threadbare, made using an optical microscope Axiovert 25. Findings: Tests results of samples in of the alloy (Fe61Co10Zr5W2Y2B2) in the form of plates were confirmed higher microhardness amorphous alloy than material with same chemical composition but with crystalline structure. Originality/value: Receipt of amorphous alloys with unique mechanical properties for electronics applications.

Mechanical properties of Fe40AI5Cr0.2TiB alloy after plastic deformation by extrusion

Cebulski J., Lalik S., Niewielski G.

Inżynieria Materiałowa

2007

Vol. 28, nr 3-4

124-127

The paper presents the results of research on Fe40A15Cr0.2TiB alloy after plastic deformation by extrusion. The alloy consists of mainly FeAl intermetallics characterize by large brittleness after casting. Prior to extrusion homogenization at 1050 °C for 72h was performed. The applied plastic work reduction was equal to be 4:1. Then the mechanical properties were determined in the range of 600÷900 °C (service temperature of the alloy). It was shown that extrusion process can be successfully to improve the plastic properties of the Fe40A15Cr0.2TiB.

W pracy przedstawiono wyniki badań stopu Fe40A15Cr0.2TiB po przeróbce plastycznej metodą wyciskania. Stopy na osnowie fazy międzymetalicznej FeAl charakteryzują się kruchością po odlewaniu. Przed wyciskaniem wykonano wyżarzanie homogenizujące w 1050 °C przez 72 h. Stopień przeróbki plastycznej wynosił 4:1. Właściwości mechaniczne wyznaczono w temperaturze 600÷900 °C (temperatura pracy stopu). Zastosowanie procesu wyciskania pozwoliło na poprawę właściwości plastycznych stopu Fe40A15Cr0.2TiB.