Effect of Small Titanium Concentrations on the Thermal Diffusivity of Fe–Ti System Alloys at High Temperatures

Resumo

We present the experimental results for the temperature dependences of the thermal diffusivity, resistivity, and thermoEMF of six iron-titanium binary-system alloys with a Ti content of up to 3 at % at high temperatures. The existence of the γ domain and, thus, presence of the α → γ and the γ → α structural phase transitions are clearly recorded in the thermal diffusivity polytherms. The Curie temperature, which is determined from the position of the λ minimum of thermal diffusivity, does not depend on the titanium concentration within the experimental accuracy.