Nanoindentation induced anisotropy of deformation and damage behaviors of MgF2 crystals
The competition mechanism between the slip motions and cleavage fractures is related to the anisotropy of deformation behaviors, which is essential to manufacture complex optical components. To identify competition mechanism between the slip motions and cleavage fractures and reveal the anisotropy o...
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| Format: | Article |
| Language: | English |
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Elsevier
2024-01-01
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| Series: | Journal of Materials Research and Technology |
| Subjects: | |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S2238785424000346 |
| _version_ | 1827368296333180928 |
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| author | Yinchuan Piao Chen Li Yuxiu Hu Hailong Cui Xichun Luo Yanquan Geng Feihu Zhang |
| author_facet | Yinchuan Piao Chen Li Yuxiu Hu Hailong Cui Xichun Luo Yanquan Geng Feihu Zhang |
| author_sort | Yinchuan Piao |
| collection | DOAJ |
| description | The competition mechanism between the slip motions and cleavage fractures is related to the anisotropy of deformation behaviors, which is essential to manufacture complex optical components. To identify competition mechanism between the slip motions and cleavage fractures and reveal the anisotropy of deformation and damage behaviors of MgF2 crystals, the nanoindentation tests were systematically conducted on different crystal planes. In addition, the stress induced by the nanoindentation was developed and decomposed along the slip systems and cleavage planes, and cleavage factors and Schmid factors were calculated. The stress, cleavage factors and Schmid factors indicated that the activation degree of the slip motions and cleavage fractures determined the indentation morphologies. Under the same indentation conditions, the nanoindentation of the (001) crystal plane activated most slip motions, so the plastic deformation is most prone to occur on this crystal plane. The nanoindentation of the (010) crystal plane activated less slip motions and most cleavage fractures, resulting in the severest brittle fractures on the (010) crystal plane. The theoretical results consisted well with the experimental results, which provides the theoretical guidance to the low-damage manufacturing of MgF2 components. |
| first_indexed | 2024-03-08T09:28:11Z |
| format | Article |
| id | doaj.art-bec1a32e4c4841c380cb67aa4eff68a6 |
| institution | Directory Open Access Journal |
| issn | 2238-7854 |
| language | English |
| last_indexed | 2024-03-08T09:28:11Z |
| publishDate | 2024-01-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Journal of Materials Research and Technology |
| spelling | doaj.art-bec1a32e4c4841c380cb67aa4eff68a62024-01-31T05:44:35ZengElsevierJournal of Materials Research and Technology2238-78542024-01-012846154625Nanoindentation induced anisotropy of deformation and damage behaviors of MgF2 crystalsYinchuan Piao0Chen Li1Yuxiu Hu2Hailong Cui3Xichun Luo4Yanquan Geng5Feihu Zhang6School of Mechatronics Engineering, Harbin Institute of Technology, Harbin, 150001, ChinaSchool of Mechatronics Engineering, Harbin Institute of Technology, Harbin, 150001, China; Key Laboratory of Microsystems and Microstructures Manufacturing (HIT), Harbin Institute of Technology, Harbin, 150001, China; Corresponding author. School of Mechatronics Engineering, Harbin Institute of Technology, Harbin, 150001, China.School of Mechatronics Engineering, Harbin Institute of Technology, Harbin, 150001, ChinaSichuan Precision and Ultra-Precision Machining Engineering Technology Center, Chengdu, 610200, ChinaCentre for Precision Manufacturing, DMEM, University of Strathclyde, Glasgow, G1 1XQ, UKSchool of Mechatronics Engineering, Harbin Institute of Technology, Harbin, 150001, China; Key Laboratory of Microsystems and Microstructures Manufacturing (HIT), Harbin Institute of Technology, Harbin, 150001, China; Corresponding author. School of Mechatronics Engineering, Harbin Institute of Technology, Harbin, 150001, China.School of Mechatronics Engineering, Harbin Institute of Technology, Harbin, 150001, ChinaThe competition mechanism between the slip motions and cleavage fractures is related to the anisotropy of deformation behaviors, which is essential to manufacture complex optical components. To identify competition mechanism between the slip motions and cleavage fractures and reveal the anisotropy of deformation and damage behaviors of MgF2 crystals, the nanoindentation tests were systematically conducted on different crystal planes. In addition, the stress induced by the nanoindentation was developed and decomposed along the slip systems and cleavage planes, and cleavage factors and Schmid factors were calculated. The stress, cleavage factors and Schmid factors indicated that the activation degree of the slip motions and cleavage fractures determined the indentation morphologies. Under the same indentation conditions, the nanoindentation of the (001) crystal plane activated most slip motions, so the plastic deformation is most prone to occur on this crystal plane. The nanoindentation of the (010) crystal plane activated less slip motions and most cleavage fractures, resulting in the severest brittle fractures on the (010) crystal plane. The theoretical results consisted well with the experimental results, which provides the theoretical guidance to the low-damage manufacturing of MgF2 components.http://www.sciencedirect.com/science/article/pii/S2238785424000346AnisotropySlip motionsCleavage fracturesNanoindentationMgF2 crystal |
| spellingShingle | Yinchuan Piao Chen Li Yuxiu Hu Hailong Cui Xichun Luo Yanquan Geng Feihu Zhang Nanoindentation induced anisotropy of deformation and damage behaviors of MgF2 crystals Journal of Materials Research and Technology Anisotropy Slip motions Cleavage fractures Nanoindentation MgF2 crystal |
| title | Nanoindentation induced anisotropy of deformation and damage behaviors of MgF2 crystals |
| title_full | Nanoindentation induced anisotropy of deformation and damage behaviors of MgF2 crystals |
| title_fullStr | Nanoindentation induced anisotropy of deformation and damage behaviors of MgF2 crystals |
| title_full_unstemmed | Nanoindentation induced anisotropy of deformation and damage behaviors of MgF2 crystals |
| title_short | Nanoindentation induced anisotropy of deformation and damage behaviors of MgF2 crystals |
| title_sort | nanoindentation induced anisotropy of deformation and damage behaviors of mgf2 crystals |
| topic | Anisotropy Slip motions Cleavage fractures Nanoindentation MgF2 crystal |
| url | http://www.sciencedirect.com/science/article/pii/S2238785424000346 |
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