On the discontinuous precipitation during recrystallization in a multicomponent alloy

Baler, N and Godha, A and Makineni, SK (2023) On the discontinuous precipitation during recrystallization in a multicomponent alloy. In: Scripta Materialia, 224 .

PDF Scripta Materialia_224_2023.pdf - Published Version Restricted to Registered users only Download (7MB) | Request a copy

Abstract

Discontinuous precipitation (DP) reactions are among the most important solid-state phenomena that occur during the migration of grain boundaries (GBs) in many engineering alloys. Migration involves solute redistribution across the moving GB and the solute diffusion assumed to occur only along it. In this work, we show the atomic scale compositional analysis across a migrating GB during recrystallization in a multicomponent alloy that reveals evidence of bulk/lattice diffusion in a precipitate free buffer zone ahead of the RF, and solute segregations at local interfaces that aid to determine the rate-limiting solutes for DP reaction kinetics.

Item Type:	Journal Article
Publication:	Scripta Materialia
Publisher:	Acta Materialia Inc
Additional Information:	The copyright for this article belongs to Acta Materialia Inc
Keywords:	Electron microscopy; Precipitates; Precipitation (chemical); Reaction kinetics; Recrystallization (metallurgy); Solid state reactions, Atom-probe tomography; Discontinuous precipitation; Engineering alloys; Grain-boundaries; Multi-component alloy; Precipitation reaction; Recrystallisation; Solute diffusion; Solute redistribution; Solute segregation, Grain boundaries
Department/Centre:	Division of Mechanical Sciences > Materials Engineering (formerly Metallurgy)
Date Deposited:	01 Dec 2022 04:43
Last Modified:	01 Dec 2022 04:43
URI:	https://eprints.iisc.ac.in/id/eprint/77871

Actions (login required)

View Item