0439282 - ÚACH 2015 RIV SI eng J - Článek v odborném periodiku
Michalcová, A. - Vojtěch, D. - Schumacher, G. - Novák, P. - Pližingrová, Eva
Effect of iron and cerium additions on rapidly solidified Al-TM-Ce alloys.
Materiali in Tehnologije. Roč. 47, č. 6 (2013), s. 757-761. ISSN 1580-2949. E-ISSN 1580-3414
Institucionální podpora: RVO:61388980
Klíčová slova: rapid solidification * aluminium * quasicrystals
Kód oboru RIV: CA - Anorganická chemie
Impakt faktor: 0.555, rok: 2013 ; AIS: 0.083, rok: 2013

The influence of the additions of the mass fractions 3% of Fe and 1% of Ce to an AlCr4Ti0.4 alloy is described in this paper. The iron addition modifies the phase composition of the material leading to the formation of the Al13Fe4 crystalline and Al-80(Cr,Fe)(20) quasicrystaline phases. It also causes a grain refinement that was proved with transmission electron microscopy and X-ray diffraction. The microhardness of the Fe-alloyed material is changed by about a factor of two in comparison to the material without Fe. On the other hand, the Fe addition has no influence on the thermal stability of the alloy. The effect of 1% of Ce on the AlCr4Ti0.4 alloy hardly affects the microhardness but increases the thermal stability during long-term annealing at 400 degrees C.
Trvalý link: http://hdl.handle.net/11104/0242574