Preparation and Properties of Directionally Solidified Ni-Al Based Alloys Modified by Molybdenum

Ni-Al-Mo based alloys can be used as materials for high temperature applications. They prepared by various techniques such an electron beam zone melting, which allows us to obtain the with a directionally solidified structure and unique properties. A plasma-melted Ni-Mo master alloy was preparation of experimental alloys. were melted in induction furnace then cast centrifugally form bars. These bars re-melted furnace. The these multi-phase. formed phases Ni3(Al,Mo) (Ni) variable content molybdenum. also contained particles rich molybdenum (Mo, MoNi). submitted compression tests at 800 °C. yield strength achieved value approx. MPa. different affected values maximal flow stress. higher showed stress, namely 1300 results show that are very promising production structural components operating elevated temperatures.