585 KB19 KB200020242014Dlouhý, JaromírKövér, MichalSláma, Peterštevilka:4letnik:48str. 599-604COBISSID:1076138ISSN:1580-2949URN:URN:NBN:SI:doc-OI8QP77EenInštitut za kovinske materiale in tehnologijeMateriali in tehnologijealuminijev bronaluminium bronzeheat treatmentmechanical propertiesmehanske lastnostimicrostructuremikrostrukturatoplotna obdelavaInfluence of heat treatment on the microstructure and mechanical properties of aluminium bronze| Vpliv toplotne obdelave na mikrostrukturo in mehanske lastnosti aluminijevega brona|The paper deals with the influence of heat treatment (annealing, quenching and aging) on the microstructure and mechanical properties of pressed bars made from the CuAl10Ni5Fe4 alloy. The microstructures were observed in light and scanning electron microscopes. The appearance and area fractions of the a and k phases and their influence on the mechanical properties were examined. Using DSC and EBSD methods, the presence of the g2 phase was monitored, as it is a very hard and brittle phase that impairs the material's corrosion resistance. The results were compared with data for the high-alloyed CuAl14Fe5 aluminium bronze, in which high hardness and wear resistance are imparted by the b + g2 phasesČlanek obravnava vpliv toplotne obdelave (žarjenje, kaljenje in staranje) na mikrostrukturo in mehanske lastnosti stiskanih palic iz zlitine CuAl10Ni5Fe4. Mikrostruktura je bila opazovana s svetlobnim in vrstičnim elektronskim mikroskopom. Preučevan je bil pojav in površinski delež faze a in k ter njun vpliv na mehanske lastnosti. Z metodama DSC in EBSD je bila pregledana prisotnost trde in krhke g2-faze, ki poslabša korozijsko odpornost materiala. Rezultati so bili primerjani s podatki za močno legiran CuAl14Fe5 aluminijev bron, pri katerem (b + g2)-faza znižujeta veliko trdoto in odpornost proti obrabiTEXTznanstveno časopisjejournalsSlovenian National E-content AggregatorNational and University Library of SloveniaInštitut za kovinske materiale in tehnologije