THE INFLUENCE ON NIOBIUM AND TITANIUM ON ELECTRICAL RESISTIVITY IN LIQUID STATE AND SOLYDIFICATION OF IN718 ALLOY

Andrey Tyagunov, Gennadiy Tyagunov, Evgeniy Baryshev, Kseniya Shmakova, Vladimir Tsepelev
2017 Acta Metallurgica Slovaca  
<p class="AMSmaintext">Electrical resistivity of IN 718 alloy was studied in liquid state with contactless induction method of rotating magnetic field. Solydification process was studied by differential thermal analysis. It was founded that electrical resistivity varies in a complicated way with increasing temperature. It is shown that heating of the liquid metal above certain temperatures causes of hysteresis, i.e. discrepancy between the temperature dependences of heating and cooling. It was
more » ... evealed, that the changes of niobium contents within alloy composition does not lead to a qualitative change of temperature dependence type, but accompanied by some peculiarities. Effect of titanium content on electrical resistivity changes within the alloy composition does not clearly detected. The temperature of maximal melt heating determines the degree of supercooling of liquid alloy.</p>
doi:10.12776/ams.v23i1.826 fatcat:sqdkcnk4frealhinpssk74iybq