Artifact-free bulk nanocrystalline Al-Li alloys with multiple deformation mechanisms and improved tensile properties
<p dir="ltr">An artifact-free bulk nanocrystalline (NC) aluminum (Al)-2% lithium (Li) alloy was synthesized in this study using <i>in-situ</i> consolidation via a combination of cryogenic and room temperature milling. The mechanical behavior of this alloy was investigated...
محفوظ في:
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| مؤلفون آخرون: | , , |
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2020
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إضافة وسم
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| _version_ | 1864513557763194880 |
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| author | Sara I. Ahmad (16936923) |
| author2 | Leena A. Al-Sulaiti (16936926) K. Andre Mkhoyan (1466848) Khaled M. Youssef (14157099) |
| author2_role | author author author |
| author_facet | Sara I. Ahmad (16936923) Leena A. Al-Sulaiti (16936926) K. Andre Mkhoyan (1466848) Khaled M. Youssef (14157099) |
| author_role | author |
| dc.creator.none.fl_str_mv | Sara I. Ahmad (16936923) Leena A. Al-Sulaiti (16936926) K. Andre Mkhoyan (1466848) Khaled M. Youssef (14157099) |
| dc.date.none.fl_str_mv | 2020-08-21T00:00:00Z |
| dc.identifier.none.fl_str_mv | 10.1016/j.mtcomm.2020.101607 |
| dc.relation.none.fl_str_mv | https://figshare.com/articles/journal_contribution/Artifact-free_bulk_nanocrystalline_Al-Li_alloys_with_multiple_deformation_mechanisms_and_improved_tensile_properties/24087642 |
| dc.rights.none.fl_str_mv | CC BY 4.0 info:eu-repo/semantics/openAccess |
| dc.subject.none.fl_str_mv | Engineering Materials engineering Nanotechnology Nanocrystalline materials Aluminum Lithium Mechanical properties Twinning |
| dc.title.none.fl_str_mv | Artifact-free bulk nanocrystalline Al-Li alloys with multiple deformation mechanisms and improved tensile properties |
| dc.type.none.fl_str_mv | Text Journal contribution info:eu-repo/semantics/publishedVersion text contribution to journal |
| description | <p dir="ltr">An artifact-free bulk nanocrystalline (NC) aluminum (Al)-2% lithium (Li) alloy was synthesized in this study using <i>in-situ</i> consolidation via a combination of cryogenic and room temperature milling. The mechanical behavior of this alloy was investigated by tensile testing and microhardness measurements, and it was compared with coarse-grained (CG) Al alloys and a commercially pure NC Al synthesized using the same method. The transmission electron microscopy (TEM) analysis revealed that the grain size of the NC Al-2% Li alloy and NC pure Al are 18 nm and 29 nm, respectively. The NC Al-Li alloy showed extremely high yield and ultimate tensile strength values of 440 MPa and 556 MPa, respectively. In addition, a high tensile ductility of 14% was achieved in the NC Al-Li alloy along with a relatively high strain hardening exponent (0.11). The high-resolution TEM investigations indicate a dependency of these extraordinarily tensile properties on multiple deformation mechanisms such as dislocation slip and pile-up and deformation twinning.</p><h2>Other Information</h2><p dir="ltr">Published in: Materials Today Communications<br>License: <a href="http://creativecommons.org/licenses/by/4.0/" target="_blank">http://creativecommons.org/licenses/by/4.0/</a><br>See article on publisher's website: <a href="https://dx.doi.org/10.1016/j.mtcomm.2020.101607" target="_blank">https://dx.doi.org/10.1016/j.mtcomm.2020.101607</a></p> |
| eu_rights_str_mv | openAccess |
| id | Manara2_e53c4e8e96792be47c5245e98f8aaca6 |
| identifier_str_mv | 10.1016/j.mtcomm.2020.101607 |
| network_acronym_str | Manara2 |
| network_name_str | Manara2 |
| oai_identifier_str | oai:figshare.com:article/24087642 |
| publishDate | 2020 |
| repository.mail.fl_str_mv | |
| repository.name.fl_str_mv | |
| repository_id_str | |
| rights_invalid_str_mv | CC BY 4.0 |
| spelling | Artifact-free bulk nanocrystalline Al-Li alloys with multiple deformation mechanisms and improved tensile propertiesSara I. Ahmad (16936923)Leena A. Al-Sulaiti (16936926)K. Andre Mkhoyan (1466848)Khaled M. Youssef (14157099)EngineeringMaterials engineeringNanotechnologyNanocrystalline materialsAluminumLithiumMechanical propertiesTwinning<p dir="ltr">An artifact-free bulk nanocrystalline (NC) aluminum (Al)-2% lithium (Li) alloy was synthesized in this study using <i>in-situ</i> consolidation via a combination of cryogenic and room temperature milling. The mechanical behavior of this alloy was investigated by tensile testing and microhardness measurements, and it was compared with coarse-grained (CG) Al alloys and a commercially pure NC Al synthesized using the same method. The transmission electron microscopy (TEM) analysis revealed that the grain size of the NC Al-2% Li alloy and NC pure Al are 18 nm and 29 nm, respectively. The NC Al-Li alloy showed extremely high yield and ultimate tensile strength values of 440 MPa and 556 MPa, respectively. In addition, a high tensile ductility of 14% was achieved in the NC Al-Li alloy along with a relatively high strain hardening exponent (0.11). The high-resolution TEM investigations indicate a dependency of these extraordinarily tensile properties on multiple deformation mechanisms such as dislocation slip and pile-up and deformation twinning.</p><h2>Other Information</h2><p dir="ltr">Published in: Materials Today Communications<br>License: <a href="http://creativecommons.org/licenses/by/4.0/" target="_blank">http://creativecommons.org/licenses/by/4.0/</a><br>See article on publisher's website: <a href="https://dx.doi.org/10.1016/j.mtcomm.2020.101607" target="_blank">https://dx.doi.org/10.1016/j.mtcomm.2020.101607</a></p>2020-08-21T00:00:00ZTextJournal contributioninfo:eu-repo/semantics/publishedVersiontextcontribution to journal10.1016/j.mtcomm.2020.101607https://figshare.com/articles/journal_contribution/Artifact-free_bulk_nanocrystalline_Al-Li_alloys_with_multiple_deformation_mechanisms_and_improved_tensile_properties/24087642CC BY 4.0info:eu-repo/semantics/openAccessoai:figshare.com:article/240876422020-08-21T00:00:00Z |
| spellingShingle | Artifact-free bulk nanocrystalline Al-Li alloys with multiple deformation mechanisms and improved tensile properties Sara I. Ahmad (16936923) Engineering Materials engineering Nanotechnology Nanocrystalline materials Aluminum Lithium Mechanical properties Twinning |
| status_str | publishedVersion |
| title | Artifact-free bulk nanocrystalline Al-Li alloys with multiple deformation mechanisms and improved tensile properties |
| title_full | Artifact-free bulk nanocrystalline Al-Li alloys with multiple deformation mechanisms and improved tensile properties |
| title_fullStr | Artifact-free bulk nanocrystalline Al-Li alloys with multiple deformation mechanisms and improved tensile properties |
| title_full_unstemmed | Artifact-free bulk nanocrystalline Al-Li alloys with multiple deformation mechanisms and improved tensile properties |
| title_short | Artifact-free bulk nanocrystalline Al-Li alloys with multiple deformation mechanisms and improved tensile properties |
| title_sort | Artifact-free bulk nanocrystalline Al-Li alloys with multiple deformation mechanisms and improved tensile properties |
| topic | Engineering Materials engineering Nanotechnology Nanocrystalline materials Aluminum Lithium Mechanical properties Twinning |