Influence of niobium solutes on the mechanical behavior of nickel during hot working - Mines Saint-Étienne Access content directly
Journal Articles Materials Science and Engineering: A Year : 2013

Influence of niobium solutes on the mechanical behavior of nickel during hot working

Abstract

An experimental program was performed to determine the rheology and influence of niobium additions to high-purity nickel on dynamic-recrystallization behavior during hot working. Various high-purity alloys were prepared (pure Ni and Ni-0.01, 0.1, 1, 2, 5 and 10 wt% Nb) and deformed to high strains by hot torsion to characterize the mechanical behavior within the temperature range from 800 to 1000 degrees C at (von Mises equivalent) strain rates of 0.03, 0.1 and 03 s(-1). A simple analytical method was proposed for predicting the strain-hardening and dynamic-recovery parameters in the classical Yoshie-Laasraoui-Jonas equation. By the means, the effect of niobium solutes on plastic flow was determined, thus enabling a reasonable fit for the flow curves for the entire range of solid solution Ni-Nb alloys. (C) 2013 Elsevier B.V. All rights reserved.

Dates and versions

emse-01011680 , version 1 (24-06-2014)

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Nedjoua Matougui, David Piot, M. L. Fares, Frank Montheillet, S.L Semiatin. Influence of niobium solutes on the mechanical behavior of nickel during hot working. Materials Science and Engineering: A, 2013, 586, pp.350-357. ⟨10.1016/j.msea.2013.07.079⟩. ⟨emse-01011680⟩
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