The development of high-entropy (HE) alloys expanded the path of advanced materials research. These alloys with at least 5 principal elements in equiatomic or near equiatomic ratios have the tendency to form solid solutions (SS) phases, usually with FCC and/or BCC structures, instead of intermetallic compounds [1]. This effect is reflected with superior mechanical properties compared with conve...

Novel Mg-Zr-Sr alloys have recently been developed for use as biodegradable implant materials. The Mg-Zr-Sr alloys were prepared by diluting Mg-Zr and Mg-Sr master alloys with pure Mg. The impact of Zr and Sr on the mechanical and biological properties has been thoroughly examined. The microstructures and mechanical properties of the alloys were characterized using optical microscopy, X-ray dif...

Annealing of amorphous precursor alloys, with compositions (Fe,Co!88M7B4Cu1 ~M5Zr, Nb, Hf!, above their primary crystallization temperature results in the nanocrystallization of the ferromagnetic a8-FeCo phase. This work describes results of the characterization of these alloys, including morphological and chemical stability of the a8-FeCo phase, examination of alloy compositions, and developme...

titanium aluminide and its alloys have been utilized in automotive, aerospace and power industries because of their specific properties such as low density (~ 4 g/cm3), high melting temperature (~ 1460 °c) and excellent high-temperature strength. ti-48al intermetallic compound and its alloys with 1.5, 3 and 5 at.%mn were produced with mechanical alloying of elemental powders for 50 hours. the p...

During temperature cycles, metallic alloys for high temperature applications are usually oxidized with formation of an external protective oxide scale, but they loose it during the cooling. This problem of oxide spallation can be studied by specific tests of cyclic oxidation but first indications can be provided by analyzing the cooling parts of thermogravimetry curves. This possibility was stu...

1. Plants interact with many organisms, such as microbes and herbivores, and these interactions are likely to affect the establishment and spread of plants. In the context of plant invasions, mycorrhizal fungi and constitutive and induced resistance of plants against herbivores have received attention independently of each other. However, plants are frequently involved in complex multi-trophic ...