Quantifying geometrically necessary dislocation with surface roughness effect in copper (111) under indentation
The present study investigated the geometrically necessary dislocation (GND) with the influence of the surface roughness by establishing the relation of roughness in GND for indentation. The single crystal copper with (111) oriented surface plane was chosen and polished to various roughness levels r...
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2-s2.0-85136937929 |
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2-s2.0-85136937929 Kok W.M.; Chuah H.G.; How H.G.; Teoh Y.H.; Yee H.M.; Tan W.H. Quantifying geometrically necessary dislocation with surface roughness effect in copper (111) under indentation 2023 Materials Science and Technology (United Kingdom) 39 3 10.1080/02670836.2022.2110700 https://www.scopus.com/inward/record.uri?eid=2-s2.0-85136937929&doi=10.1080%2f02670836.2022.2110700&partnerID=40&md5=90c41f94dc238c09d8b8b4af6a2efbda The present study investigated the geometrically necessary dislocation (GND) with the influence of the surface roughness by establishing the relation of roughness in GND for indentation. The single crystal copper with (111) oriented surface plane was chosen and polished to various roughness levels ranging from 32.7 to 224 nm and subjected to indentation. The increase in surface roughness revealed to increase in the GND and statistically stored dislocation density. As the indentation force decrease from 9.8 to 0.245 N, the plastic strain gradient related to GND increase from 0.0001 up to 0.0017 µm−1 for each 1 nm increment of surface roughness. © 2022 Institute of Materials, Minerals and Mining. Taylor and Francis Ltd. 2670836 English Article All Open Access; Bronze Open Access |
| author |
Kok W.M.; Chuah H.G.; How H.G.; Teoh Y.H.; Yee H.M.; Tan W.H. |
| spellingShingle |
Kok W.M.; Chuah H.G.; How H.G.; Teoh Y.H.; Yee H.M.; Tan W.H. Quantifying geometrically necessary dislocation with surface roughness effect in copper (111) under indentation |
| author_facet |
Kok W.M.; Chuah H.G.; How H.G.; Teoh Y.H.; Yee H.M.; Tan W.H. |
| author_sort |
Kok W.M.; Chuah H.G.; How H.G.; Teoh Y.H.; Yee H.M.; Tan W.H. |
| title |
Quantifying geometrically necessary dislocation with surface roughness effect in copper (111) under indentation |
| title_short |
Quantifying geometrically necessary dislocation with surface roughness effect in copper (111) under indentation |
| title_full |
Quantifying geometrically necessary dislocation with surface roughness effect in copper (111) under indentation |
| title_fullStr |
Quantifying geometrically necessary dislocation with surface roughness effect in copper (111) under indentation |
| title_full_unstemmed |
Quantifying geometrically necessary dislocation with surface roughness effect in copper (111) under indentation |
| title_sort |
Quantifying geometrically necessary dislocation with surface roughness effect in copper (111) under indentation |
| publishDate |
2023 |
| container_title |
Materials Science and Technology (United Kingdom) |
| container_volume |
39 |
| container_issue |
3 |
| doi_str_mv |
10.1080/02670836.2022.2110700 |
| url |
https://www.scopus.com/inward/record.uri?eid=2-s2.0-85136937929&doi=10.1080%2f02670836.2022.2110700&partnerID=40&md5=90c41f94dc238c09d8b8b4af6a2efbda |
| description |
The present study investigated the geometrically necessary dislocation (GND) with the influence of the surface roughness by establishing the relation of roughness in GND for indentation. The single crystal copper with (111) oriented surface plane was chosen and polished to various roughness levels ranging from 32.7 to 224 nm and subjected to indentation. The increase in surface roughness revealed to increase in the GND and statistically stored dislocation density. As the indentation force decrease from 9.8 to 0.245 N, the plastic strain gradient related to GND increase from 0.0001 up to 0.0017 µm−1 for each 1 nm increment of surface roughness. © 2022 Institute of Materials, Minerals and Mining. |
| publisher |
Taylor and Francis Ltd. |
| issn |
2670836 |
| language |
English |
| format |
Article |
| accesstype |
All Open Access; Bronze Open Access |
| record_format |
scopus |
| collection |
Scopus |
| _version_ |
1792585216872677376 |