Evolution of Microstructure and Texture during Annealing in a High-Pressure Torsion Processed Fe-9Cr Alloy

Abstract

The microstructure and texture of a Grade 91 (Fe-9Cr)alloy, which were subjected to high-pressure torsion (HPT)and annealing at 600 °C, were investigated. The HPT significantly refined the grain size, and generated typical body-centered cubic (bcc)torsion textures, including J{110} < 211> , D{112} < 111 > and E{011} < 111 >. During annealing, grains grew, and J became the most important texture component. Grains orientated in J showed increased number density and larger average grain sizes in the annealed microstructure. The dominance of J can be explained based on the stored energy and grain boundary characteristics of the J grains.

Department(s)

Materials Science and Engineering

Research Center/Lab(s)

Intelligent Systems Center

Keywords and Phrases

Annealing; Grain growth; High-pressure torsion; Steels; Texture

International Standard Serial Number (ISSN)

2589-1529

Document Type

Article - Journal

Document Version

Citation

File Type

text

Language(s)

English

Rights

© 2019 Acta Materialia Inc., All rights reserved.

Publication Date

01 Jun 2019

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