Study of aluminium and titanium total quantity ratio effect on the technological plasticity of high alloyed nickel heat resisting alloys

To understand the effect of the total aluminium and titanium content on the standard plastisity of heat-resistant alloys added with refractory elements (tungsten, molybdenum, cobalt, niobium) ingots 160 mm in diameter have been studied, obtained by the VAM method with the content of Σ Ti+Al=0-8%. An aluminium-and titanium-free alloy has a satisfactory plastisity in the test temperature interval 950-1200deg C. At an increased combined content of these metals the standard plastisity falls within the entire test temperature interval. The temperature interval of the maximum standard plastisity becomes tangibly narrower as Σ Al+Ti increases. The change of the microhardness of heatresistant alloys added with tungsten, molybdenum, cobalt, niobium correlates with plastisity variation depending on the total content of aluminium and titanium