Strength, Hardness, and Ductility Evidence of Solid Solution Strengthening and Limited Hydrogen Embrittlement in the Alloy System Palladium-Copper (Cu wt. % 5–25)
| Autor: | Abena Adutwum, Gabrielle Legall, Isabella Portal, William Miller, Sebastian DiMauro, Steve Nesbit, A. P. Craft, Monica Nadeau, Brandon Roy, Renee Tait, Coleman Lubinsky |
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| Jazyk: | angličtina |
| Rok vydání: | 2021 |
| Předmět: |
Science (General)
Materials science 020209 energy Alloy chemistry.chemical_element 02 engineering and technology engineering.material Indentation hardness ductility Q1-390 embrittlement Ultimate tensile strength 0202 electrical engineering electronic engineering information engineering Ductility Embrittlement Metallurgy 021001 nanoscience & nanotechnology palladium Copper hardness Solid solution strengthening chemistry copper hydrogen engineering 0210 nano-technology strength Hydrogen embrittlement |
| Zdroj: | Hydrogen Volume 2 Issue 3 Pages 14-272 Hydrogen, Vol 2, Iss 14, Pp 262-272 (2021) |
| ISSN: | 2673-4141 |
| DOI: | 10.3390/hydrogen2030014 |
| Popis: | Strength, hardness, and ductility characteristics were determined for a series of palladium-copper alloys that compositionally vary from 5 to 25 weight percent copper. Alloy specimens subjected to vacuum annealing showed clear evidence of solid solution strengthening. These specimens showed, as a function of increasing copper content, increased yield strength, ultimate strength, and Vickers microhardness, while their ductility was little affected by compositional differences. Annealed alloy specimens subsequently subjected to exposure to hydrogen at 323 K and PH2 = 1 atm showed evidence of hydrogen embrittlement up to a composition of ~15 wt. % Cu. The magnitude of the hydrogen embrittlement decreased with increasing copper content in the alloy. |
| Databáze: | OpenAIRE |
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