Deformation and failure behavior of heterogeneous Mg/SiC nanocomposite under compression
The heterogeneous magnesium (Mg) matrix nanocomposite with dispersed soft phase exhibits high strength and toughness. Herein, the deformation behavior and failure process were investigated to reveal the unique mechanical behavior of the heterogeneous microstructure under compression. The extensive p...
| Main Authors: | , , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
KeAi Communications Co., Ltd.
2022-12-01
|
| Series: | Journal of Magnesium and Alloys |
| Subjects: | |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S2213956721001110 |
| _version_ | 1797961138926780416 |
|---|---|
| author | Xi Luo Jinling Liu Leigang Zhang Xu He Ke Zhao Linan An |
| author_facet | Xi Luo Jinling Liu Leigang Zhang Xu He Ke Zhao Linan An |
| author_sort | Xi Luo |
| collection | DOAJ |
| description | The heterogeneous magnesium (Mg) matrix nanocomposite with dispersed soft phase exhibits high strength and toughness. Herein, the deformation behavior and failure process were investigated to reveal the unique mechanical behavior of the heterogeneous microstructure under compression. The extensive plastic deformation is accompanied by the flattening and tilting of the soft phase, inhibiting strain localization and leading to strain hardening. Moreover, a stable crack multiplication process is activated, which endows high damage tolerance to the heterogeneous Mg matrix nanocomposites. The final failure of the composite is caused by crack coalescence in the shear plane along a tortuous path. The presence of dispersed soft phases within the hard matrix induces a noticeable change in mechanical response. Especially, the malleability of the heterogeneous Mg matrix nanocomposite is two and ten times higher than that of pure Mg and the homogeneous Mg matrix nanocomposite, respectively. The current study provides a novel strategy to break the trade-off between strength and toughness in metal matrix nanocomposites. |
| first_indexed | 2024-04-11T00:54:42Z |
| format | Article |
| id | doaj.art-b20b9be528a44ba7a5b1f76253db18aa |
| institution | Directory Open Access Journal |
| issn | 2213-9567 |
| language | English |
| last_indexed | 2024-04-11T00:54:42Z |
| publishDate | 2022-12-01 |
| publisher | KeAi Communications Co., Ltd. |
| record_format | Article |
| series | Journal of Magnesium and Alloys |
| spelling | doaj.art-b20b9be528a44ba7a5b1f76253db18aa2023-01-05T06:47:07ZengKeAi Communications Co., Ltd.Journal of Magnesium and Alloys2213-95672022-12-01101234333446Deformation and failure behavior of heterogeneous Mg/SiC nanocomposite under compressionXi Luo0Jinling Liu1Leigang Zhang2Xu He3Ke Zhao4Linan An5State Key Laboratory of Traction Power & School of Mechanics and Engineering, Southwest Jiaotong University, Chengdu, Sichuan, 610031, China; Applied Mechanics and Structure Safety Key Laboratory of Sichuan Province, Southwest Jiaotong University, Chengdu, Sichuan, 610031, ChinaState Key Laboratory of Traction Power & School of Mechanics and Engineering, Southwest Jiaotong University, Chengdu, Sichuan, 610031, China; Applied Mechanics and Structure Safety Key Laboratory of Sichuan Province, Southwest Jiaotong University, Chengdu, Sichuan, 610031, China; Corresponding author.State Key Laboratory of Traction Power & School of Mechanics and Engineering, Southwest Jiaotong University, Chengdu, Sichuan, 610031, China; Applied Mechanics and Structure Safety Key Laboratory of Sichuan Province, Southwest Jiaotong University, Chengdu, Sichuan, 610031, ChinaState Key Laboratory of Traction Power & School of Mechanics and Engineering, Southwest Jiaotong University, Chengdu, Sichuan, 610031, China; Applied Mechanics and Structure Safety Key Laboratory of Sichuan Province, Southwest Jiaotong University, Chengdu, Sichuan, 610031, ChinaState Key Laboratory of Traction Power & School of Mechanics and Engineering, Southwest Jiaotong University, Chengdu, Sichuan, 610031, China; Applied Mechanics and Structure Safety Key Laboratory of Sichuan Province, Southwest Jiaotong University, Chengdu, Sichuan, 610031, ChinaDepartment of Materials Science and Engineering, University of Central Florida, Orlando, FL, 32816, United StatesThe heterogeneous magnesium (Mg) matrix nanocomposite with dispersed soft phase exhibits high strength and toughness. Herein, the deformation behavior and failure process were investigated to reveal the unique mechanical behavior of the heterogeneous microstructure under compression. The extensive plastic deformation is accompanied by the flattening and tilting of the soft phase, inhibiting strain localization and leading to strain hardening. Moreover, a stable crack multiplication process is activated, which endows high damage tolerance to the heterogeneous Mg matrix nanocomposites. The final failure of the composite is caused by crack coalescence in the shear plane along a tortuous path. The presence of dispersed soft phases within the hard matrix induces a noticeable change in mechanical response. Especially, the malleability of the heterogeneous Mg matrix nanocomposite is two and ten times higher than that of pure Mg and the homogeneous Mg matrix nanocomposite, respectively. The current study provides a novel strategy to break the trade-off between strength and toughness in metal matrix nanocomposites.http://www.sciencedirect.com/science/article/pii/S2213956721001110Magnesium matrix nanocompositesHeterogeneous structureMalleabilityMicrostructural evolution |
| spellingShingle | Xi Luo Jinling Liu Leigang Zhang Xu He Ke Zhao Linan An Deformation and failure behavior of heterogeneous Mg/SiC nanocomposite under compression Journal of Magnesium and Alloys Magnesium matrix nanocomposites Heterogeneous structure Malleability Microstructural evolution |
| title | Deformation and failure behavior of heterogeneous Mg/SiC nanocomposite under compression |
| title_full | Deformation and failure behavior of heterogeneous Mg/SiC nanocomposite under compression |
| title_fullStr | Deformation and failure behavior of heterogeneous Mg/SiC nanocomposite under compression |
| title_full_unstemmed | Deformation and failure behavior of heterogeneous Mg/SiC nanocomposite under compression |
| title_short | Deformation and failure behavior of heterogeneous Mg/SiC nanocomposite under compression |
| title_sort | deformation and failure behavior of heterogeneous mg sic nanocomposite under compression |
| topic | Magnesium matrix nanocomposites Heterogeneous structure Malleability Microstructural evolution |
| url | http://www.sciencedirect.com/science/article/pii/S2213956721001110 |
| work_keys_str_mv | AT xiluo deformationandfailurebehaviorofheterogeneousmgsicnanocompositeundercompression AT jinlingliu deformationandfailurebehaviorofheterogeneousmgsicnanocompositeundercompression AT leigangzhang deformationandfailurebehaviorofheterogeneousmgsicnanocompositeundercompression AT xuhe deformationandfailurebehaviorofheterogeneousmgsicnanocompositeundercompression AT kezhao deformationandfailurebehaviorofheterogeneousmgsicnanocompositeundercompression AT linanan deformationandfailurebehaviorofheterogeneousmgsicnanocompositeundercompression |