Effect of Annealing on Strain Rate Sensitivity of Metallic Glass under Nanoindentation
The influence of isothermal annealing on the strain rate sensitivity (SRS) of a Zr-based bulk metallic glass (BMG) was investigated by nanoindentation. A more positive SRS is observed with a decrease in the content of the free volume (FV) of the sample. Furthermore, the SRS becomes nearly constant w...
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| Format: | Article |
| Language: | English |
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MDPI AG
2020-08-01
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| Series: | Metals |
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| Online Access: | https://www.mdpi.com/2075-4701/10/8/1063 |
| _version_ | 1797559919493251072 |
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| author | Mingcan Li |
| author_facet | Mingcan Li |
| author_sort | Mingcan Li |
| collection | DOAJ |
| description | The influence of isothermal annealing on the strain rate sensitivity (SRS) of a Zr-based bulk metallic glass (BMG) was investigated by nanoindentation. A more positive SRS is observed with a decrease in the content of the free volume (FV) of the sample. Furthermore, the SRS becomes nearly constant with increasing annealing time when the FV is annealed out. By taking into consideration the FV-assisted activation and combination of the shear transformation zones (STZs), the underlying mechanism is well understood. The current work may offer useful insights into the correlation between the microstructure and mechanical properties of BMGs. |
| first_indexed | 2024-03-10T17:52:00Z |
| format | Article |
| id | doaj.art-9bb0c7f68e6d4d708f7f9058dd188ac4 |
| institution | Directory Open Access Journal |
| issn | 2075-4701 |
| language | English |
| last_indexed | 2024-03-10T17:52:00Z |
| publishDate | 2020-08-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Metals |
| spelling | doaj.art-9bb0c7f68e6d4d708f7f9058dd188ac42023-11-20T09:19:28ZengMDPI AGMetals2075-47012020-08-01108106310.3390/met10081063Effect of Annealing on Strain Rate Sensitivity of Metallic Glass under NanoindentationMingcan Li0School of Physics Science and Technology, Xinjiang University, Urumqi 830046, ChinaThe influence of isothermal annealing on the strain rate sensitivity (SRS) of a Zr-based bulk metallic glass (BMG) was investigated by nanoindentation. A more positive SRS is observed with a decrease in the content of the free volume (FV) of the sample. Furthermore, the SRS becomes nearly constant with increasing annealing time when the FV is annealed out. By taking into consideration the FV-assisted activation and combination of the shear transformation zones (STZs), the underlying mechanism is well understood. The current work may offer useful insights into the correlation between the microstructure and mechanical properties of BMGs.https://www.mdpi.com/2075-4701/10/8/1063bulk metallic glassannealingnanoindentationhardnessstrain rate |
| spellingShingle | Mingcan Li Effect of Annealing on Strain Rate Sensitivity of Metallic Glass under Nanoindentation Metals bulk metallic glass annealing nanoindentation hardness strain rate |
| title | Effect of Annealing on Strain Rate Sensitivity of Metallic Glass under Nanoindentation |
| title_full | Effect of Annealing on Strain Rate Sensitivity of Metallic Glass under Nanoindentation |
| title_fullStr | Effect of Annealing on Strain Rate Sensitivity of Metallic Glass under Nanoindentation |
| title_full_unstemmed | Effect of Annealing on Strain Rate Sensitivity of Metallic Glass under Nanoindentation |
| title_short | Effect of Annealing on Strain Rate Sensitivity of Metallic Glass under Nanoindentation |
| title_sort | effect of annealing on strain rate sensitivity of metallic glass under nanoindentation |
| topic | bulk metallic glass annealing nanoindentation hardness strain rate |
| url | https://www.mdpi.com/2075-4701/10/8/1063 |
| work_keys_str_mv | AT mingcanli effectofannealingonstrainratesensitivityofmetallicglassundernanoindentation |