Rev.Adv.Mater.Sci.(RAMS)
No 2, Vol. 11, 2006, pages 116-121

PROPERTIES OF Fe-36%Ni INVAR WITH NANOCRYSTALLINE STRUCTURE

R.R. Mulyukov, V.A. Kazantsev, Kh.Ya. Mulyukov, A.M. Burkhanov, I.M. Safarov and I.Kh. Bitkulov

Abstract

Temperature dependencies of saturation magnetization and temperature coefficient of linear expansion for the Fe-36%Ni alloy have been studied in different structural states obtained by severe plastic torsion straining under quasi-hydrostatic pressure and following annealing at different temperatures. The studies have revealed the decrease in the coefficient of thermal expansion for the invar alloy within the temperature range 20-100 °Cí from severe plastic deformation, as well as the generation of superlattice segregation in it.

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