Dominant factors for fracture at the micro-scale in electrodeposited nickel alloys
| Autor: | Todd R. Christenson, John T. Geaney, Li-Anne Liew, Frank W. DelRio, May L. Martin, David T. Read |
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| Rok vydání: | 2020 |
| Předmět: |
Materials science
Sample geometry Alloy chemistry.chemical_element 02 engineering and technology engineering.material 01 natural sciences Article 0103 physical sciences Electrical and Electronic Engineering Composite material Instrumentation Tensile testing 010302 applied physics technology industry and agriculture Metals and Alloys Strain rate equipment and supplies 021001 nanoscience & nanotechnology Condensed Matter Physics Microstructure Surfaces Coatings and Films Electronic Optical and Magnetic Materials Nickel chemistry Fracture (geology) engineering 0210 nano-technology LIGA |
| Zdroj: | Sens Actuators A Phys |
| ISSN: | 0924-4247 |
| DOI: | 10.1016/j.sna.2020.112239 |
| Popis: | Two different LIGA electrodeposited nickel alloys displayed distinct fracture modes after meso-scale tensile testing. The Ni-Co alloy failed in a ductile manner, while the Ni-Fe alloy failed in a more brittle-appearing manner. Various factors affecting the fracture are discussed; it was determined that the fracture mode did not depend upon the strain rate but did depend upon the sample geometry. The difference in the microstructure is likely the cause of the difference in fracture mode, as the Ni-Co alloy is fine-grained, while the Ni-Fe alloy is nano-grained and likely failed by a creep-like mechanism. |
| Databáze: | OpenAIRE |
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