Restoration mechanism and sub-structural characteristics of duplex stainless steel with an initial equiaxed austenite morphology during post-deformation annealing

Pawan Kumar, Peter Hodgson, Hossein Beladi, Amit Roy Chowdhury, M. E. Makhatha, A. K. Dutt

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

3 Citations (Scopus)

Abstract

Uni-axial compression (UAC) tests and further post deformation annealing (PDA) were done for 23Cr-6Ni-3Mo duplex stainless steel (DSS). The initial morphology was equiaxed (EQ) in nature. In the first stage of PDA, austenite showed limited static recrystallization (SRX) followed by static recovery (SRV); however ferrite showed static recovery (SRV). In the second stage of PDA, the austenite showed grain coarsening followed by disintegration of substructures (DIS); and ferrite revealed mostly SRV leading to grain coarsening. The third stage of PDA envisages substructural disintegration of unstable substructure leading to saturation in both austenite and ferrite. The substructural characteristics were provided by Electron backscattered diffraction (EBSD) and its post processing were done by using HKL Channel 5 software.

Original languageEnglish
Title of host publicationAdvances in Material Science - Selected peer-reviewed full text papers from the International Conference on Advances in Material Science, ICAMS 2020
EditorsSandip A. Kale, Ajay K. Mishra
PublisherTrans Tech Publications Ltd
Pages64-73
Number of pages10
ISBN (Print)9783035738353
DOIs
Publication statusPublished - 2021
EventInternational Conference on Advances in Material Science, ICAMS 2020 - Pune, India
Duration: 3 Oct 20203 Oct 2020

Publication series

NameKey Engineering Materials
Volume882 KEM
ISSN (Print)1013-9826
ISSN (Electronic)1662-9795

Conference

ConferenceInternational Conference on Advances in Material Science, ICAMS 2020
Country/TerritoryIndia
CityPune
Period3/10/203/10/20

Keywords

  • Misorientation
  • Post deformation annealing
  • Restoration substrcture
  • Uni axial compression

ASJC Scopus subject areas

  • General Materials Science
  • Mechanics of Materials
  • Mechanical Engineering

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