Effect of composition and thermal history on deformation behavior and cluster connections in model bulk metallic glasses
Abstract The compositional dependence and influence of relaxation state on the deformation behavior of a Pt–Pd-based bulk metallic glasses model system was investigated, where platinum is systematically replaced by topologically equivalent palladium atoms. The hardness and modulus increased with ris...
| Main Authors: | , , , , , , , , , , , |
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| Format: | Article |
| Language: | English |
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Nature Portfolio
2022-10-01
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| Series: | Scientific Reports |
| Online Access: | https://doi.org/10.1038/s41598-022-20938-6 |
| _version_ | 1828343225514983424 |
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| author | Nico Neuber Maryam Sadeghilaridjani Nandita Ghodki Oliver Gross Bastian Adam Lucas Ruschel Maximilian Frey Saideep Muskeri Malte Blankenburg Isabella Gallino Ralf Busch Sundeep Mukherjee |
| author_facet | Nico Neuber Maryam Sadeghilaridjani Nandita Ghodki Oliver Gross Bastian Adam Lucas Ruschel Maximilian Frey Saideep Muskeri Malte Blankenburg Isabella Gallino Ralf Busch Sundeep Mukherjee |
| author_sort | Nico Neuber |
| collection | DOAJ |
| description | Abstract The compositional dependence and influence of relaxation state on the deformation behavior of a Pt–Pd-based bulk metallic glasses model system was investigated, where platinum is systematically replaced by topologically equivalent palladium atoms. The hardness and modulus increased with rising Pd content as well as by annealing below the glass transition temperature. Decreasing strain-rate sensitivity and increasing serration length are observed in nano indentation with increase in Pd content as well as thermal relaxation. Micro-pillar compression for alloys with different Pt/Pd ratios validated the greater tendency for shear localization and brittle behavior of the Pd-rich alloys. Based on total scattering experiments with synchrotron X-ray radiation, a correlation between the increase in stiffer 3-atom cluster connections and reduction in strain-rate sensitivity, as a measure of ductility, with Pd content and thermal history is suggested. |
| first_indexed | 2024-04-13T23:39:36Z |
| format | Article |
| id | doaj.art-2dd35e244fff4e4b82f31e1e869f77e1 |
| institution | Directory Open Access Journal |
| issn | 2045-2322 |
| language | English |
| last_indexed | 2024-04-13T23:39:36Z |
| publishDate | 2022-10-01 |
| publisher | Nature Portfolio |
| record_format | Article |
| series | Scientific Reports |
| spelling | doaj.art-2dd35e244fff4e4b82f31e1e869f77e12022-12-22T02:24:33ZengNature PortfolioScientific Reports2045-23222022-10-0112111410.1038/s41598-022-20938-6Effect of composition and thermal history on deformation behavior and cluster connections in model bulk metallic glassesNico Neuber0Maryam Sadeghilaridjani1Nandita Ghodki2Oliver Gross3Bastian Adam4Lucas Ruschel5Maximilian Frey6Saideep Muskeri7Malte Blankenburg8Isabella Gallino9Ralf Busch10Sundeep Mukherjee11Chair of Metallic Materials, Saarland UniversityDepartment of Materials Science and Engineering, University of North TexasDepartment of Materials Science and Engineering, University of North TexasChair of Metallic Materials, Saarland UniversityChair of Metallic Materials, Saarland UniversityChair of Metallic Materials, Saarland UniversityChair of Metallic Materials, Saarland UniversityDepartment of Materials Science and Engineering, University of North TexasDeutsches Elektronen-Synchrotron DESYChair of Metallic Materials, Saarland UniversityChair of Metallic Materials, Saarland UniversityDepartment of Materials Science and Engineering, University of North TexasAbstract The compositional dependence and influence of relaxation state on the deformation behavior of a Pt–Pd-based bulk metallic glasses model system was investigated, where platinum is systematically replaced by topologically equivalent palladium atoms. The hardness and modulus increased with rising Pd content as well as by annealing below the glass transition temperature. Decreasing strain-rate sensitivity and increasing serration length are observed in nano indentation with increase in Pd content as well as thermal relaxation. Micro-pillar compression for alloys with different Pt/Pd ratios validated the greater tendency for shear localization and brittle behavior of the Pd-rich alloys. Based on total scattering experiments with synchrotron X-ray radiation, a correlation between the increase in stiffer 3-atom cluster connections and reduction in strain-rate sensitivity, as a measure of ductility, with Pd content and thermal history is suggested.https://doi.org/10.1038/s41598-022-20938-6 |
| spellingShingle | Nico Neuber Maryam Sadeghilaridjani Nandita Ghodki Oliver Gross Bastian Adam Lucas Ruschel Maximilian Frey Saideep Muskeri Malte Blankenburg Isabella Gallino Ralf Busch Sundeep Mukherjee Effect of composition and thermal history on deformation behavior and cluster connections in model bulk metallic glasses Scientific Reports |
| title | Effect of composition and thermal history on deformation behavior and cluster connections in model bulk metallic glasses |
| title_full | Effect of composition and thermal history on deformation behavior and cluster connections in model bulk metallic glasses |
| title_fullStr | Effect of composition and thermal history on deformation behavior and cluster connections in model bulk metallic glasses |
| title_full_unstemmed | Effect of composition and thermal history on deformation behavior and cluster connections in model bulk metallic glasses |
| title_short | Effect of composition and thermal history on deformation behavior and cluster connections in model bulk metallic glasses |
| title_sort | effect of composition and thermal history on deformation behavior and cluster connections in model bulk metallic glasses |
| url | https://doi.org/10.1038/s41598-022-20938-6 |
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