Achieving high strength via solutes co-clustering and solvents redistribution in an ultralightweight BCC magnesium alloy

The microstructural features of a high-strength body-centered cubic Mg-Li–Al-Ag alloy are investigated and the strengthening mechanisms are discussed. The results show that obvious spinodal decomposition occurs in the alloy. Owing to the diffusion of Al atoms to Ag-vacancy pairs, co-clustering of Al...

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Main Authors: Song Tang, Zongde Kou, Tongzheng Xin, Zijian Zhang, Tao Feng, Ting Luo, Si Lan, Gerhard Wilde, Bin Jiang
Format: Article
Language:English
Published: Taylor & Francis Group 2023-07-01
Series:Materials Research Letters
Subjects:
Online Access:https://www.tandfonline.com/doi/10.1080/21663831.2023.2188909
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author Song Tang
Zongde Kou
Tongzheng Xin
Zijian Zhang
Tao Feng
Ting Luo
Si Lan
Gerhard Wilde
Bin Jiang
author_facet Song Tang
Zongde Kou
Tongzheng Xin
Zijian Zhang
Tao Feng
Ting Luo
Si Lan
Gerhard Wilde
Bin Jiang
author_sort Song Tang
collection DOAJ
description The microstructural features of a high-strength body-centered cubic Mg-Li–Al-Ag alloy are investigated and the strengthening mechanisms are discussed. The results show that obvious spinodal decomposition occurs in the alloy. Owing to the diffusion of Al atoms to Ag-vacancy pairs, co-clustering of Al and Ag is observed. The compositional redistribution of Li in the matrix reduces the interfacial lattice misfit and thus lowers the strain energy. Combinatorial spinodal strengthening with coherency strain hardening result in high strength achieved in the Mg-Li–Al-Ag alloy. The dual alloying strategy opens avenues for tuning the microstructure and enhancing mechanical properties of Mg-Li alloys.
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spelling doaj.art-ac0cb5aece2c4acb8e89bb5a92ef38062023-04-21T09:44:05ZengTaylor & Francis GroupMaterials Research Letters2166-38312023-07-0111755656210.1080/21663831.2023.2188909Achieving high strength via solutes co-clustering and solvents redistribution in an ultralightweight BCC magnesium alloySong Tang0Zongde Kou1Tongzheng Xin2Zijian Zhang3Tao Feng4Ting Luo5Si Lan6Gerhard Wilde7Bin Jiang8Herbert Gleiter Institute of Nanoscience, School of Materials Science and Engineering, Nanjing University of Science and Technology, Jiangsu, People’s Republic of ChinaHerbert Gleiter Institute of Nanoscience, School of Materials Science and Engineering, Nanjing University of Science and Technology, Jiangsu, People’s Republic of ChinaDepartment of Mechanical Engineering, The University of Hong Kong, Hong Kong, People’s Republic of ChinaHerbert Gleiter Institute of Nanoscience, School of Materials Science and Engineering, Nanjing University of Science and Technology, Jiangsu, People’s Republic of ChinaHerbert Gleiter Institute of Nanoscience, School of Materials Science and Engineering, Nanjing University of Science and Technology, Jiangsu, People’s Republic of ChinaState Key Laboratory of Solidification Processing, Northwestern Polytechnical University, Xi'an, People’s Republic of ChinaHerbert Gleiter Institute of Nanoscience, School of Materials Science and Engineering, Nanjing University of Science and Technology, Jiangsu, People’s Republic of ChinaHerbert Gleiter Institute of Nanoscience, School of Materials Science and Engineering, Nanjing University of Science and Technology, Jiangsu, People’s Republic of ChinaState Key Laboratory of Mechanical Transmissions, College of Materials Science and Engineering, Chongqing University, Chongqing, People’s Republic of ChinaThe microstructural features of a high-strength body-centered cubic Mg-Li–Al-Ag alloy are investigated and the strengthening mechanisms are discussed. The results show that obvious spinodal decomposition occurs in the alloy. Owing to the diffusion of Al atoms to Ag-vacancy pairs, co-clustering of Al and Ag is observed. The compositional redistribution of Li in the matrix reduces the interfacial lattice misfit and thus lowers the strain energy. Combinatorial spinodal strengthening with coherency strain hardening result in high strength achieved in the Mg-Li–Al-Ag alloy. The dual alloying strategy opens avenues for tuning the microstructure and enhancing mechanical properties of Mg-Li alloys.https://www.tandfonline.com/doi/10.1080/21663831.2023.2188909Mg alloysmechanical propertyspinodal decompositionclusteringcompositional redistribution
spellingShingle Song Tang
Zongde Kou
Tongzheng Xin
Zijian Zhang
Tao Feng
Ting Luo
Si Lan
Gerhard Wilde
Bin Jiang
Achieving high strength via solutes co-clustering and solvents redistribution in an ultralightweight BCC magnesium alloy
Materials Research Letters
Mg alloys
mechanical property
spinodal decomposition
clustering
compositional redistribution
title Achieving high strength via solutes co-clustering and solvents redistribution in an ultralightweight BCC magnesium alloy
title_full Achieving high strength via solutes co-clustering and solvents redistribution in an ultralightweight BCC magnesium alloy
title_fullStr Achieving high strength via solutes co-clustering and solvents redistribution in an ultralightweight BCC magnesium alloy
title_full_unstemmed Achieving high strength via solutes co-clustering and solvents redistribution in an ultralightweight BCC magnesium alloy
title_short Achieving high strength via solutes co-clustering and solvents redistribution in an ultralightweight BCC magnesium alloy
title_sort achieving high strength via solutes co clustering and solvents redistribution in an ultralightweight bcc magnesium alloy
topic Mg alloys
mechanical property
spinodal decomposition
clustering
compositional redistribution
url https://www.tandfonline.com/doi/10.1080/21663831.2023.2188909
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