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Five-parameter grain boundary distribution of commercially grain boundary engineered nickel and copper

V Randle, G.S Rohrer, H.M Miller, M Coleman, G.T Owen, Valerie Randle, Mark Coleman Orcid Logo

Acta Materialia, Volume: 56, Issue: 10, Pages: 2363 - 2373

Swansea University Authors: Valerie Randle, Mark Coleman Orcid Logo

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Abstract

The five-parameter grain boundary distributions of grain boundary engineered nickel and copper specimens have been analyzed in detail. The relative areas of {1 1 1} planes in the entire population did not increase as a result of grain boundary engineering (GBE) and, in the Σ3-excluded population, de...

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Published in: Acta Materialia
ISSN: 1359-6454
Published: 2008
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URI: https://cronfa.swan.ac.uk/Record/cronfa5522
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spelling 2016-08-17T14:01:32.6812665 v2 5522 2013-09-03 Five-parameter grain boundary distribution of commercially grain boundary engineered nickel and copper 50774edc7f60dff63ee0cbd56be764b8 Valerie Randle Valerie Randle true false 73c5735de19c8a70acb41ab788081b67 0000-0002-4628-1077 Mark Coleman Mark Coleman true false 2013-09-03 FGSEN The five-parameter grain boundary distributions of grain boundary engineered nickel and copper specimens have been analyzed in detail. The relative areas of {1 1 1} planes in the entire population did not increase as a result of grain boundary engineering (GBE) and, in the Σ3-excluded population, decreased after GBE. This decrease occurred because the majority of the newly generated Σ3 grain boundaries were not coherent twins with {1 1 1} grain boundary plane orientations. GBE increased the proportion of Σ3 boundary length that was vicinal-to-{1 1 1} and the proportion of asymmetrical 〈1 1 0〉 tilt boundaries. There was a clear propensity for selection of particular planes or plane combinations which were associated with low energy. These plane types were analyzed in some detail, and it was shown that many of these boundaries were asymmetrical tilts comprising (or vicinal to) at least one low-index plane. Journal Article Acta Materialia 56 10 2363 2373 1359-6454 Grain boundary; Grain boundary twin; Electron backscatter diffraction; Grain boundary plane 31 12 2008 2008-12-31 10.1016/j.actamat.2008.01.039 This work, which was part funded by EPSRC grant EP/C51260X, represents part of an ongoing international collaboration with Professor Rohrer at Carnegie Mellon University, USA. The work, which was published in an IF 3.76 journal and has 35 citations so far, makes a significant contribution to understanding the microstructure of grain boundary engineered material in commercially available products. This was achieved by the novel ‘five-parameter’ methodology. It has led to a new EPSRC research grant, ‘Extension of the five-parameter grain boundary stereological method to textured alloys’, EP/F030819/1, also in collaboration with Professor Roher (rohrer@cmu.edu). COLLEGE NANME Science and Engineering - Faculty COLLEGE CODE FGSEN Swansea University 2016-08-17T14:01:32.6812665 2013-09-03T06:10:27.0000000 College of Engineering Engineering V Randle 1 G.S Rohrer 2 H.M Miller 3 M Coleman 4 G.T Owen 5 Valerie Randle 6 Mark Coleman 0000-0002-4628-1077 7
title Five-parameter grain boundary distribution of commercially grain boundary engineered nickel and copper
spellingShingle Five-parameter grain boundary distribution of commercially grain boundary engineered nickel and copper
Valerie Randle
Mark Coleman
title_short Five-parameter grain boundary distribution of commercially grain boundary engineered nickel and copper
title_full Five-parameter grain boundary distribution of commercially grain boundary engineered nickel and copper
title_fullStr Five-parameter grain boundary distribution of commercially grain boundary engineered nickel and copper
title_full_unstemmed Five-parameter grain boundary distribution of commercially grain boundary engineered nickel and copper
title_sort Five-parameter grain boundary distribution of commercially grain boundary engineered nickel and copper
author_id_str_mv 50774edc7f60dff63ee0cbd56be764b8
73c5735de19c8a70acb41ab788081b67
author_id_fullname_str_mv 50774edc7f60dff63ee0cbd56be764b8_***_Valerie Randle
73c5735de19c8a70acb41ab788081b67_***_Mark Coleman
author Valerie Randle
Mark Coleman
author2 V Randle
G.S Rohrer
H.M Miller
M Coleman
G.T Owen
Valerie Randle
Mark Coleman
format Journal article
container_title Acta Materialia
container_volume 56
container_issue 10
container_start_page 2363
publishDate 2008
institution Swansea University
issn 1359-6454
doi_str_mv 10.1016/j.actamat.2008.01.039
college_str College of Engineering
hierarchytype
hierarchy_top_id collegeofengineering
hierarchy_top_title College of Engineering
hierarchy_parent_id collegeofengineering
hierarchy_parent_title College of Engineering
department_str Engineering{{{_:::_}}}College of Engineering{{{_:::_}}}Engineering
document_store_str 0
active_str 0
description The five-parameter grain boundary distributions of grain boundary engineered nickel and copper specimens have been analyzed in detail. The relative areas of {1 1 1} planes in the entire population did not increase as a result of grain boundary engineering (GBE) and, in the Σ3-excluded population, decreased after GBE. This decrease occurred because the majority of the newly generated Σ3 grain boundaries were not coherent twins with {1 1 1} grain boundary plane orientations. GBE increased the proportion of Σ3 boundary length that was vicinal-to-{1 1 1} and the proportion of asymmetrical 〈1 1 0〉 tilt boundaries. There was a clear propensity for selection of particular planes or plane combinations which were associated with low energy. These plane types were analyzed in some detail, and it was shown that many of these boundaries were asymmetrical tilts comprising (or vicinal to) at least one low-index plane.
published_date 2008-12-31T03:15:26Z
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