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Crystallographic Orientation Relationship with Geometrically Necessary Dislocation Accumulation During High-Temperature Deformation in RR1000 Nickel-Based Superalloy

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Metallurgical and Materials Transactions A, Volume: 50, Issue: 2, Pages: 534 - 539

Swansea University Author: Soran Birosca Orcid Logo

Abstract

In the current study, it is demonstrated that soft grains along 〈100〉 fiber provided a pure shear condition for easy dislocation movement leading to a relatively low dislocation density. The hard grains along the 〈111〉 fiber, however, were not favorably oriented for slip system activation and caused...

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Published in: Metallurgical and Materials Transactions A
ISSN: 1073-5623 1543-1940
Published: Springer Science and Business Media LLC 2019
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URI: https://cronfa.swan.ac.uk/Record/cronfa45993
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spelling 2020-10-19T18:29:42.6380017 v2 45993 2018-11-20 Crystallographic Orientation Relationship with Geometrically Necessary Dislocation Accumulation During High-Temperature Deformation in RR1000 Nickel-Based Superalloy 3445603fcc2ff9d27b476a73b223a507 0000-0002-8380-771X Soran Birosca Soran Birosca true false 2018-11-20 EEN In the current study, it is demonstrated that soft grains along 〈100〉 fiber provided a pure shear condition for easy dislocation movement leading to a relatively low dislocation density. The hard grains along the 〈111〉 fiber, however, were not favorably oriented for slip system activation and caused high dislocation accumulation. It is concluded that the average overall dislocation density does not provide a meaningful value, as it is largely dependent on the original material crystallographic texture, the numbers of hard and soft grains in the electron backscatter diffraction (EBSD) mapped area, and the grain size factor. Journal Article Metallurgical and Materials Transactions A 50 2 534 539 Springer Science and Business Media LLC 1073-5623 1543-1940 1 2 2019 2019-02-01 10.1007/s11661-018-5036-y COLLEGE NANME Engineering COLLEGE CODE EEN Swansea University 2020-10-19T18:29:42.6380017 2018-11-20T09:01:09.0896837 College of Engineering Engineering Soran Birosca 0000-0002-8380-771X 1 0045993-13122018140225.pdf birosca2018(2).pdf 2018-12-13T14:02:25.5470000 Output 7616043 application/pdf Version of Record true 2018-12-13T00:00:00.0000000 true eng
title Crystallographic Orientation Relationship with Geometrically Necessary Dislocation Accumulation During High-Temperature Deformation in RR1000 Nickel-Based Superalloy
spellingShingle Crystallographic Orientation Relationship with Geometrically Necessary Dislocation Accumulation During High-Temperature Deformation in RR1000 Nickel-Based Superalloy
Soran Birosca
title_short Crystallographic Orientation Relationship with Geometrically Necessary Dislocation Accumulation During High-Temperature Deformation in RR1000 Nickel-Based Superalloy
title_full Crystallographic Orientation Relationship with Geometrically Necessary Dislocation Accumulation During High-Temperature Deformation in RR1000 Nickel-Based Superalloy
title_fullStr Crystallographic Orientation Relationship with Geometrically Necessary Dislocation Accumulation During High-Temperature Deformation in RR1000 Nickel-Based Superalloy
title_full_unstemmed Crystallographic Orientation Relationship with Geometrically Necessary Dislocation Accumulation During High-Temperature Deformation in RR1000 Nickel-Based Superalloy
title_sort Crystallographic Orientation Relationship with Geometrically Necessary Dislocation Accumulation During High-Temperature Deformation in RR1000 Nickel-Based Superalloy
author_id_str_mv 3445603fcc2ff9d27b476a73b223a507
author_id_fullname_str_mv 3445603fcc2ff9d27b476a73b223a507_***_Soran Birosca
author Soran Birosca
author2 Soran Birosca
format Journal article
container_title Metallurgical and Materials Transactions A
container_volume 50
container_issue 2
container_start_page 534
publishDate 2019
institution Swansea University
issn 1073-5623
1543-1940
doi_str_mv 10.1007/s11661-018-5036-y
publisher Springer Science and Business Media LLC
college_str College of Engineering
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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 1
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description In the current study, it is demonstrated that soft grains along 〈100〉 fiber provided a pure shear condition for easy dislocation movement leading to a relatively low dislocation density. The hard grains along the 〈111〉 fiber, however, were not favorably oriented for slip system activation and caused high dislocation accumulation. It is concluded that the average overall dislocation density does not provide a meaningful value, as it is largely dependent on the original material crystallographic texture, the numbers of hard and soft grains in the electron backscatter diffraction (EBSD) mapped area, and the grain size factor.
published_date 2019-02-01T04:00:09Z
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score 10.88812