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Grain boundary plane distributions and single-step versus multiple-step grain boundary engineering

Valerie Randle, Richard Jones

Materials Science and Engineering: A, Volume: 524, Issue: 1-2, Pages: 134 - 142

Swansea University Author: Valerie Randle

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DOI (Published version): 10.1016/j.msea.2009.06.018

Abstract

The ‘five-parameter’ (i.e. both misorientation and grain boundary plane) distribution in type 304 austenitic stainless steel has been measured and evaluated for an ‘as-received’ (AR) specimen and specimens undergoing both single-step grain boundary engineering processing (SSGBE) and multiple-step gr...

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Published in: Materials Science and Engineering: A
ISSN: 0921-5093
Published: 2009
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URI: https://cronfa.swan.ac.uk/Record/cronfa5524
first_indexed 2013-07-23T11:52:53Z
last_indexed 2018-02-09T04:31:53Z
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spelling 2016-08-17T14:02:06.7054776 v2 5524 2013-09-03 Grain boundary plane distributions and single-step versus multiple-step grain boundary engineering 50774edc7f60dff63ee0cbd56be764b8 Valerie Randle Valerie Randle true false 2013-09-03 The ‘five-parameter’ (i.e. both misorientation and grain boundary plane) distribution in type 304 austenitic stainless steel has been measured and evaluated for an ‘as-received’ (AR) specimen and specimens undergoing both single-step grain boundary engineering processing (SSGBE) and multiple-step grain boundary engineering processing (MSGBE) comprising three iterations. The results showed that the fundamental requirement for twinning-related GBE is to maximise concomitantly the proportion of both Σ3 and Σ9 boundaries, which in turn supports the development of special planes in the grain boundary network. 〈1 1 0〉 and 〈1 1 1〉 tilt and twist boundaries play a key role in the formation of ‘special’ grain boundary planes. MSGBE added increased proportions of Σ3 boundaries and resulted in development of different characteristics in the planes distribution compared to SSGBE. These modifications are likely to result in improved grain boundary properties after MSGBE compared to SSGBE. Journal Article Materials Science and Engineering: A 524 1-2 134 142 0921-5093 •Thermomechanical processing; •Electron backscattering diffraction (EBSD); •Stainless steels 31 12 2009 2009-12-31 10.1016/j.msea.2009.06.018 This work arose from a £88,493 grant awarded from Rolls Royce Marine for a project ‘Mitigation of intergranular degradation in austenitic stainless steels’. This paper, published in a journal with a five-year IF of 2.22 and having 11 citations, reports a comparison of various grain boundary engineering (GBE) processing routes on austenitic steel 304 and characterization of the resulting microstructure by misorientation and boundary plane analysis. A key finding is that it is important to maximise concomitantly the proportion of both Σ3 and Σ9 boundaries. Interest in this work led to an Invited talk at an international conference, ‘MS&T’. COLLEGE NANME COLLEGE CODE Swansea University 2016-08-17T14:02:06.7054776 2013-09-03T06:10:42.0000000 Faculty of Science and Engineering School of Engineering and Applied Sciences - Uncategorised Valerie Randle 1 Richard Jones 2
title Grain boundary plane distributions and single-step versus multiple-step grain boundary engineering
spellingShingle Grain boundary plane distributions and single-step versus multiple-step grain boundary engineering
Valerie Randle
title_short Grain boundary plane distributions and single-step versus multiple-step grain boundary engineering
title_full Grain boundary plane distributions and single-step versus multiple-step grain boundary engineering
title_fullStr Grain boundary plane distributions and single-step versus multiple-step grain boundary engineering
title_full_unstemmed Grain boundary plane distributions and single-step versus multiple-step grain boundary engineering
title_sort Grain boundary plane distributions and single-step versus multiple-step grain boundary engineering
author_id_str_mv 50774edc7f60dff63ee0cbd56be764b8
author_id_fullname_str_mv 50774edc7f60dff63ee0cbd56be764b8_***_Valerie Randle
author Valerie Randle
author2 Valerie Randle
Richard Jones
format Journal article
container_title Materials Science and Engineering: A
container_volume 524
container_issue 1-2
container_start_page 134
publishDate 2009
institution Swansea University
issn 0921-5093
doi_str_mv 10.1016/j.msea.2009.06.018
college_str Faculty of Science and Engineering
hierarchytype
hierarchy_top_id facultyofscienceandengineering
hierarchy_top_title Faculty of Science and Engineering
hierarchy_parent_id facultyofscienceandengineering
hierarchy_parent_title Faculty of Science and Engineering
department_str School of Engineering and Applied Sciences - Uncategorised{{{_:::_}}}Faculty of Science and Engineering{{{_:::_}}}School of Engineering and Applied Sciences - Uncategorised
document_store_str 0
active_str 0
description The ‘five-parameter’ (i.e. both misorientation and grain boundary plane) distribution in type 304 austenitic stainless steel has been measured and evaluated for an ‘as-received’ (AR) specimen and specimens undergoing both single-step grain boundary engineering processing (SSGBE) and multiple-step grain boundary engineering processing (MSGBE) comprising three iterations. The results showed that the fundamental requirement for twinning-related GBE is to maximise concomitantly the proportion of both Σ3 and Σ9 boundaries, which in turn supports the development of special planes in the grain boundary network. 〈1 1 0〉 and 〈1 1 1〉 tilt and twist boundaries play a key role in the formation of ‘special’ grain boundary planes. MSGBE added increased proportions of Σ3 boundaries and resulted in development of different characteristics in the planes distribution compared to SSGBE. These modifications are likely to result in improved grain boundary properties after MSGBE compared to SSGBE.
published_date 2009-12-31T18:10:29Z
_version_ 1821339423512461312
score 11.04748

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