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Type: Artigo de periódico
Title: Stacking Fault Energy Measurements In Solid Solution Strengthened Ni-cr-fe Alloys Using Synchrotron Radiation
Author: Unfried-Silgado J.
Wu L.
Furlan Ferreira F.
Mario Garzon C.
Ramirez A.J.
Abstract: The stacking fault energy (SFE) in a set of experimental Ni-Cr-Fe alloys was determined using line profile analysis on synchrotron X-ray diffraction measurements. The methodology used here is supported by the Warren-Averbach calculations and the relationships among the stacking fault probability (α) and the mean-square microstrain (<ε 2 L>). These parameters were obtained experimentally from cold-worked and annealed specimens extracted from the set of studied Ni-alloys. The obtained results show that the SFE in these alloys is strongly influenced by the kind and quantity of addition elements. Different effects due to the action of carbide-forming elements and the solid solution hardening elements on the SFE are discussed here. The simultaneous addition of Nb, Hf, and, Mo, in the studied Ni-Cr-Fe alloys have generated the stronger decreasing of the SFE. The relationships between SFE and the contributions on electronic structure from each element of additions were established. © 2012 Elsevier B.V.
Rights: fechado
Identifier DOI: 10.1016/j.msea.2012.07.072
Date Issue: 2012
Appears in Collections:Unicamp - Artigos e Outros Documentos

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