HEAT TREATMENT AND PROPERTIES OF PLASTICALLY DEFORMED HIGH COERCIVITY Fe – 30 % Cr – 15 % Co – 2 % W – 1 % Mo – 1 % Ti ALLOY

Abstract

The structural transformation, magnetic and mechanical properties in plastically deformed high coercivity Fe – 15 % Co – 30 % Cr – 2 % W – 1 % Mo – 1 % Ti alloy were investigated. Metallographic and x-ray methods showed that in addition to the single-phase α-solid solution at the 1220 – 1180 °C in the alloy there is a region of the metastable α-phase at 670 – 700 °C. Annealing of the alloy after cold deformation at this tem- peratures does not course recrystallization and it is accompanied by polygonization processes. The correlation between the magnetic and mechanical properties of the alloy with the initial state-phase α-solid solution and it’s structure is established. It is shown that, depending on the initial state of a single-phase α-solid solution alloy can be obtained high magnetic or mechanical properties.