Strength, Hardness, and Ductility Evidence of Solid Solution Strengthening and Limited Hydrogen Embrittlement in the Alloy System Palladium-Copper (Cu wt. % 5–25)
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 fu...
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doaj-28bb2125a6db4ba6b8c6bd5c308293e52021-09-26T00:16:47ZengMDPI AGHydrogen2673-41412021-07-0121426227210.3390/hydrogen2030014Strength, Hardness, and Ductility Evidence of Solid Solution Strengthening and Limited Hydrogen Embrittlement in the Alloy System Palladium-Copper (Cu wt. % 5–25)Sebastian DiMauro0Gabrielle Legall1Coleman Lubinsky2Monica Nadeau3Renee Tait4William Miller5Abena Adutwum6Isabella Portal7Brandon Roy8Steve Nesbit9Andrew Craft10Department of Chemistry, University of Hartford, West Hartford, CT 06117, USADepartment of Chemistry, University of Hartford, West Hartford, CT 06117, USADepartment of Chemistry, University of Hartford, West Hartford, CT 06117, USADepartment of Chemistry, University of Hartford, West Hartford, CT 06117, USADepartment of Chemistry, University of Hartford, West Hartford, CT 06117, USADepartment of Chemistry, University of Hartford, West Hartford, CT 06117, USADepartment of Chemistry, University of Hartford, West Hartford, CT 06117, USADepartment of Chemistry, University of Hartford, West Hartford, CT 06117, USADepartment of Chemistry, University of Hartford, West Hartford, CT 06117, USADepartment of Mechanical Engineering, Lafayette College, Easton, PA 18042, USADepartment of Chemistry, University of Hartford, West Hartford, CT 06117, USAStrength, 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 P<sub>H2</sub> = 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.https://www.mdpi.com/2673-4141/2/3/14palladiumcopperhydrogenstrengthhardnessductility |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Sebastian DiMauro Gabrielle Legall Coleman Lubinsky Monica Nadeau Renee Tait William Miller Abena Adutwum Isabella Portal Brandon Roy Steve Nesbit Andrew Craft |
spellingShingle |
Sebastian DiMauro Gabrielle Legall Coleman Lubinsky Monica Nadeau Renee Tait William Miller Abena Adutwum Isabella Portal Brandon Roy Steve Nesbit Andrew Craft Strength, Hardness, and Ductility Evidence of Solid Solution Strengthening and Limited Hydrogen Embrittlement in the Alloy System Palladium-Copper (Cu wt. % 5–25) Hydrogen palladium copper hydrogen strength hardness ductility |
author_facet |
Sebastian DiMauro Gabrielle Legall Coleman Lubinsky Monica Nadeau Renee Tait William Miller Abena Adutwum Isabella Portal Brandon Roy Steve Nesbit Andrew Craft |
author_sort |
Sebastian DiMauro |
title |
Strength, Hardness, and Ductility Evidence of Solid Solution Strengthening and Limited Hydrogen Embrittlement in the Alloy System Palladium-Copper (Cu wt. % 5–25) |
title_short |
Strength, Hardness, and Ductility Evidence of Solid Solution Strengthening and Limited Hydrogen Embrittlement in the Alloy System Palladium-Copper (Cu wt. % 5–25) |
title_full |
Strength, Hardness, and Ductility Evidence of Solid Solution Strengthening and Limited Hydrogen Embrittlement in the Alloy System Palladium-Copper (Cu wt. % 5–25) |
title_fullStr |
Strength, Hardness, and Ductility Evidence of Solid Solution Strengthening and Limited Hydrogen Embrittlement in the Alloy System Palladium-Copper (Cu wt. % 5–25) |
title_full_unstemmed |
Strength, Hardness, and Ductility Evidence of Solid Solution Strengthening and Limited Hydrogen Embrittlement in the Alloy System Palladium-Copper (Cu wt. % 5–25) |
title_sort |
strength, hardness, and ductility evidence of solid solution strengthening and limited hydrogen embrittlement in the alloy system palladium-copper (cu wt. % 5–25) |
publisher |
MDPI AG |
series |
Hydrogen |
issn |
2673-4141 |
publishDate |
2021-07-01 |
description |
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 P<sub>H2</sub> = 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. |
topic |
palladium copper hydrogen strength hardness ductility |
url |
https://www.mdpi.com/2673-4141/2/3/14 |
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