Charakterystyki wysokotemperaturowego odkształcania stopu na osnowie związku międzymetalicznego $Ni_3Al$

Abstract

The influence of boron additions on the formability of intermetallic compound $Ni_3Al$ was investigated. The addition of such elements as (wt.%): chromium (6,79 %), tantalum (4,9%), molybdenum (2,44%) and zirconium (0,96%) on the formability of directionally solidified NiAlCrTaMoZr alloy, within a limited range of temperatures and strain rates, as well as directionality of mechanical properties were determined. The sequences of structural change in dendrites structure of this alloy were correlated with mechanical characteristics (σ-ε) obtained in compression tests.