Journal article 988 views
A study of low-strain and medium-strain grain boundary engineering
Acta Materialia, Volume: 57, Issue: 11, Pages: 3410 - 3421
Swansea University Authors: Valerie Randle, Mark Coleman
Full text not available from this repository: check for access using links below.
DOI (Published version): 10.1016/j.actamat.2009.04.002
Abstract
Grain boundary engineering (GBE) processing schedules, involving low-strain (5% deformation) iterative treatments, have been carried out on copper. Misorientation and grain boundary plane statistics have been derived, plus tensile and hardness measurements. The Σ3 length fraction and Σ9/Σ3 number ra...
Published in: | Acta Materialia |
---|---|
ISSN: | 1359-6454 |
Published: |
2009
|
Online Access: |
Check full text
|
URI: | https://cronfa.swan.ac.uk/Record/cronfa5523 |
first_indexed |
2013-07-23T11:52:53Z |
---|---|
last_indexed |
2018-02-09T04:31:53Z |
id |
cronfa5523 |
recordtype |
SURis |
fullrecord |
<?xml version="1.0"?><rfc1807><datestamp>2016-08-17T14:01:49.3111580</datestamp><bib-version>v2</bib-version><id>5523</id><entry>2013-09-03</entry><title>A study of low-strain and medium-strain grain boundary engineering</title><swanseaauthors><author><sid>50774edc7f60dff63ee0cbd56be764b8</sid><firstname>Valerie</firstname><surname>Randle</surname><name>Valerie Randle</name><active>true</active><ethesisStudent>false</ethesisStudent></author><author><sid>73c5735de19c8a70acb41ab788081b67</sid><firstname>Mark</firstname><surname>Coleman</surname><name>Mark Coleman</name><active>true</active><ethesisStudent>false</ethesisStudent></author></swanseaauthors><date>2013-09-03</date><abstract>Grain boundary engineering (GBE) processing schedules, involving low-strain (5% deformation) iterative treatments, have been carried out on copper. Misorientation and grain boundary plane statistics have been derived, plus tensile and hardness measurements. The Σ3 length fraction and Σ9/Σ3 number ratio decreased during the first two processing iterations, whereas maximum GBE misorientation statistics were achieved after three processing iterations. Analysis of mechanical properties data revealed an accumulation of strain energy throughout the first three processing iterations, sufficient to provide enough driving force for extensive Σ3n interactions. The density of Σ3 boundaries had a larger effect on the rate of hardening than did the density of grain boundaries. This finding indicates the effectiveness of Σ3 interfaces as barriers to plastic flow, which plays an important role in the early stages of GBE processing. Data from samples that had undergone the low-strain iterations were also compared to medium-strain (25% deformation) processing iterations.</abstract><type>Journal Article</type><journal>Acta Materialia</journal><volume>57</volume><journalNumber>11</journalNumber><paginationStart>3410</paginationStart><paginationEnd>3421</paginationEnd><publisher/><issnPrint>1359-6454</issnPrint><keywords>•Copper; •Electron backscattering diffraction (EBSD); •Grain boundary twin</keywords><publishedDay>31</publishedDay><publishedMonth>12</publishedMonth><publishedYear>2009</publishedYear><publishedDate>2009-12-31</publishedDate><doi>10.1016/j.actamat.2009.04.002</doi><url/><notes>This work, which appeared in a 3.76 IF journal and has 10 citations so far, was funded by EPSRC grant EP/C51260X. A methodology for assessing the effectiveness of grain boundary engineering (GBE), based Σ3 length fraction and Σ9/Σ3 number ratio, was proposed and validated. The findings establish the effectiveness of Σ3 interfaces as barriers to plastic flow. This provides a convenient index for future work. The impact of this paper (and others)led to two keynote papers at international conferences, ‘ITAP-3’ and ‘Thermec2009’. The work also spawned a collaboration with a group in Germany (dagmar.dietrich@mb.tu-chemnitz.de) and a subsequent publication .</notes><college>COLLEGE NANME</college><CollegeCode>COLLEGE CODE</CollegeCode><institution>Swansea University</institution><apcterm/><lastEdited>2016-08-17T14:01:49.3111580</lastEdited><Created>2013-09-03T06:10:53.0000000</Created><path><level id="1">Faculty of Science and Engineering</level><level id="2">School of Engineering and Applied Sciences - Uncategorised</level></path><authors><author><firstname>Valerie</firstname><surname>Randle</surname><order>1</order></author><author><firstname>Mark</firstname><surname>Coleman</surname><order>2</order></author></authors><documents/><OutputDurs/></rfc1807> |
spelling |
2016-08-17T14:01:49.3111580 v2 5523 2013-09-03 A study of low-strain and medium-strain grain boundary engineering 50774edc7f60dff63ee0cbd56be764b8 Valerie Randle Valerie Randle true false 73c5735de19c8a70acb41ab788081b67 Mark Coleman Mark Coleman true false 2013-09-03 Grain boundary engineering (GBE) processing schedules, involving low-strain (5% deformation) iterative treatments, have been carried out on copper. Misorientation and grain boundary plane statistics have been derived, plus tensile and hardness measurements. The Σ3 length fraction and Σ9/Σ3 number ratio decreased during the first two processing iterations, whereas maximum GBE misorientation statistics were achieved after three processing iterations. Analysis of mechanical properties data revealed an accumulation of strain energy throughout the first three processing iterations, sufficient to provide enough driving force for extensive Σ3n interactions. The density of Σ3 boundaries had a larger effect on the rate of hardening than did the density of grain boundaries. This finding indicates the effectiveness of Σ3 interfaces as barriers to plastic flow, which plays an important role in the early stages of GBE processing. Data from samples that had undergone the low-strain iterations were also compared to medium-strain (25% deformation) processing iterations. Journal Article Acta Materialia 57 11 3410 3421 1359-6454 •Copper; •Electron backscattering diffraction (EBSD); •Grain boundary twin 31 12 2009 2009-12-31 10.1016/j.actamat.2009.04.002 This work, which appeared in a 3.76 IF journal and has 10 citations so far, was funded by EPSRC grant EP/C51260X. A methodology for assessing the effectiveness of grain boundary engineering (GBE), based Σ3 length fraction and Σ9/Σ3 number ratio, was proposed and validated. The findings establish the effectiveness of Σ3 interfaces as barriers to plastic flow. This provides a convenient index for future work. The impact of this paper (and others)led to two keynote papers at international conferences, ‘ITAP-3’ and ‘Thermec2009’. The work also spawned a collaboration with a group in Germany (dagmar.dietrich@mb.tu-chemnitz.de) and a subsequent publication . COLLEGE NANME COLLEGE CODE Swansea University 2016-08-17T14:01:49.3111580 2013-09-03T06:10:53.0000000 Faculty of Science and Engineering School of Engineering and Applied Sciences - Uncategorised Valerie Randle 1 Mark Coleman 2 |
title |
A study of low-strain and medium-strain grain boundary engineering |
spellingShingle |
A study of low-strain and medium-strain grain boundary engineering Valerie Randle Mark Coleman |
title_short |
A study of low-strain and medium-strain grain boundary engineering |
title_full |
A study of low-strain and medium-strain grain boundary engineering |
title_fullStr |
A study of low-strain and medium-strain grain boundary engineering |
title_full_unstemmed |
A study of low-strain and medium-strain grain boundary engineering |
title_sort |
A study of low-strain and medium-strain grain boundary engineering |
author_id_str_mv |
50774edc7f60dff63ee0cbd56be764b8 73c5735de19c8a70acb41ab788081b67 |
author_id_fullname_str_mv |
50774edc7f60dff63ee0cbd56be764b8_***_Valerie Randle 73c5735de19c8a70acb41ab788081b67_***_Mark Coleman |
author |
Valerie Randle Mark Coleman |
author2 |
Valerie Randle Mark Coleman |
format |
Journal article |
container_title |
Acta Materialia |
container_volume |
57 |
container_issue |
11 |
container_start_page |
3410 |
publishDate |
2009 |
institution |
Swansea University |
issn |
1359-6454 |
doi_str_mv |
10.1016/j.actamat.2009.04.002 |
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 |
Grain boundary engineering (GBE) processing schedules, involving low-strain (5% deformation) iterative treatments, have been carried out on copper. Misorientation and grain boundary plane statistics have been derived, plus tensile and hardness measurements. The Σ3 length fraction and Σ9/Σ3 number ratio decreased during the first two processing iterations, whereas maximum GBE misorientation statistics were achieved after three processing iterations. Analysis of mechanical properties data revealed an accumulation of strain energy throughout the first three processing iterations, sufficient to provide enough driving force for extensive Σ3n interactions. The density of Σ3 boundaries had a larger effect on the rate of hardening than did the density of grain boundaries. This finding indicates the effectiveness of Σ3 interfaces as barriers to plastic flow, which plays an important role in the early stages of GBE processing. Data from samples that had undergone the low-strain iterations were also compared to medium-strain (25% deformation) processing iterations. |
published_date |
2009-12-31T18:10:29Z |
_version_ |
1821339423305891840 |
score |
11.04748 |