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In-situ neutron diffraction study of lattice deformation behaviour of commercially pure titanium at cryogenic temperature

Titanium has a significant potential for the cryogenic industrial fields such as aerospace and liquefied gas storage and transportation due to its excellent low temperature properties. To develop and advance the technologies in cryogenic industries, it is required to fully understand the underlying...

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Autores principales: Lee, Min-Su, Kawasaki, Takuro, Yamashita, Takayuki, Harjo, Stefanus, Hyun, Yong-Taek, Jeong, Youngung, Jun, Tea-Sung
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Nature Publishing Group UK 2022
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8904482/
https://www.ncbi.nlm.nih.gov/pubmed/35260655
http://dx.doi.org/10.1038/s41598-022-07640-3
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author Lee, Min-Su
Kawasaki, Takuro
Yamashita, Takayuki
Harjo, Stefanus
Hyun, Yong-Taek
Jeong, Youngung
Jun, Tea-Sung
author_facet Lee, Min-Su
Kawasaki, Takuro
Yamashita, Takayuki
Harjo, Stefanus
Hyun, Yong-Taek
Jeong, Youngung
Jun, Tea-Sung
author_sort Lee, Min-Su
collection PubMed
description Titanium has a significant potential for the cryogenic industrial fields such as aerospace and liquefied gas storage and transportation due to its excellent low temperature properties. To develop and advance the technologies in cryogenic industries, it is required to fully understand the underlying deformation mechanisms of Ti under the extreme cryogenic environment. Here, we report a study of the lattice behaviour in grain families of Grade 2 CP-Ti during in-situ neutron diffraction test in tension at temperatures of 15–298 K. Combined with the neutron diffraction intensity analysis, EBSD measurements revealed that the twinning activity was more active at lower temperature, and the behaviour was complicated with decreasing temperature. The deviation of linearity in the lattice strains was caused by the load-redistribution between plastically soft and hard grain families, resulting in the three-stage hardening behaviour. The lattice strain behaviour further deviated from linearity with decreasing temperature, leading to the transition of plastically soft-to-hard or hard-to-soft characteristic of particular grain families at cryogenic temperature. The improvement of ductility can be attributed to the increased twinning activity and a significant change of lattice deformation behaviour at cryogenic temperature.
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spelling pubmed-89044822022-03-09 In-situ neutron diffraction study of lattice deformation behaviour of commercially pure titanium at cryogenic temperature Lee, Min-Su Kawasaki, Takuro Yamashita, Takayuki Harjo, Stefanus Hyun, Yong-Taek Jeong, Youngung Jun, Tea-Sung Sci Rep Article Titanium has a significant potential for the cryogenic industrial fields such as aerospace and liquefied gas storage and transportation due to its excellent low temperature properties. To develop and advance the technologies in cryogenic industries, it is required to fully understand the underlying deformation mechanisms of Ti under the extreme cryogenic environment. Here, we report a study of the lattice behaviour in grain families of Grade 2 CP-Ti during in-situ neutron diffraction test in tension at temperatures of 15–298 K. Combined with the neutron diffraction intensity analysis, EBSD measurements revealed that the twinning activity was more active at lower temperature, and the behaviour was complicated with decreasing temperature. The deviation of linearity in the lattice strains was caused by the load-redistribution between plastically soft and hard grain families, resulting in the three-stage hardening behaviour. The lattice strain behaviour further deviated from linearity with decreasing temperature, leading to the transition of plastically soft-to-hard or hard-to-soft characteristic of particular grain families at cryogenic temperature. The improvement of ductility can be attributed to the increased twinning activity and a significant change of lattice deformation behaviour at cryogenic temperature. Nature Publishing Group UK 2022-03-08 /pmc/articles/PMC8904482/ /pubmed/35260655 http://dx.doi.org/10.1038/s41598-022-07640-3 Text en © The Author(s) 2022 https://creativecommons.org/licenses/by/4.0/Open Access This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons licence, and indicate if changes were made. The images or other third party material in this article are included in the article's Creative Commons licence, unless indicated otherwise in a credit line to the material. If material is not included in the article's Creative Commons licence and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this licence, visit http://creativecommons.org/licenses/by/4.0/ (https://creativecommons.org/licenses/by/4.0/) .
spellingShingle Article
Lee, Min-Su
Kawasaki, Takuro
Yamashita, Takayuki
Harjo, Stefanus
Hyun, Yong-Taek
Jeong, Youngung
Jun, Tea-Sung
In-situ neutron diffraction study of lattice deformation behaviour of commercially pure titanium at cryogenic temperature
title In-situ neutron diffraction study of lattice deformation behaviour of commercially pure titanium at cryogenic temperature
title_full In-situ neutron diffraction study of lattice deformation behaviour of commercially pure titanium at cryogenic temperature
title_fullStr In-situ neutron diffraction study of lattice deformation behaviour of commercially pure titanium at cryogenic temperature
title_full_unstemmed In-situ neutron diffraction study of lattice deformation behaviour of commercially pure titanium at cryogenic temperature
title_short In-situ neutron diffraction study of lattice deformation behaviour of commercially pure titanium at cryogenic temperature
title_sort in-situ neutron diffraction study of lattice deformation behaviour of commercially pure titanium at cryogenic temperature
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8904482/
https://www.ncbi.nlm.nih.gov/pubmed/35260655
http://dx.doi.org/10.1038/s41598-022-07640-3
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