Novel Experimentation for the Validation of Mechanistic Models to Describe Cold Dwell Sensitivity in Titanium Alloys
Previous mechanistic models, proposed to explain the process of damage accumulation and stress redistribution between strong and weak regions inherent within the microstructure of α/β and near α titanium alloys, are validated through a matrix of experiments employing a non-standard variant of the al...
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| Formato: | Artigo |
| Idioma: | English |
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MDPI AG
2021-09-01
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| Colecção: | Metals |
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| Acesso em linha: | https://www.mdpi.com/2075-4701/11/9/1456 |
| _version_ | 1829091867203993600 |
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| author | Elizabeth E. Sackett Martin R. Bache |
| author_facet | Elizabeth E. Sackett Martin R. Bache |
| author_sort | Elizabeth E. Sackett |
| collection | DOAJ |
| description | Previous mechanistic models, proposed to explain the process of damage accumulation and stress redistribution between strong and weak regions inherent within the microstructure of α/β and near α titanium alloys, are validated through a matrix of experiments employing a non-standard variant of the alloy Ti 685. The grain size of the model material was deliberately processed to offer grains up to 20 mm in diameter, to facilitate constitutive measurements within individual grains. A range of experiments were performed under static and cyclic loading, with the fatigue cycle conducted under either strain or load control. Data will be reported to demonstrate significant variations in elastic and plastic properties between grains and emphasise the role of time dependent strain accumulation. Implications for the “dwell sensitive fatigue” or “cold creep” response of conventional titanium alloys will be discussed. |
| first_indexed | 2024-03-10T07:26:19Z |
| format | Article |
| id | doaj.art-a6926e643bd44d25b4c9c5151c470c2d |
| institution | Directory Open Access Journal |
| issn | 2075-4701 |
| language | English |
| last_indexed | 2024-03-10T07:26:19Z |
| publishDate | 2021-09-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Metals |
| spelling | doaj.art-a6926e643bd44d25b4c9c5151c470c2d2023-11-22T14:14:16ZengMDPI AGMetals2075-47012021-09-01119145610.3390/met11091456Novel Experimentation for the Validation of Mechanistic Models to Describe Cold Dwell Sensitivity in Titanium AlloysElizabeth E. Sackett0Martin R. Bache1Faculty of Science and Engineering, Swansea University, Swansea SA1 8EN, UKInstitute of Structural Materials, Swansea University, Swansea SA1 8EN, UKPrevious mechanistic models, proposed to explain the process of damage accumulation and stress redistribution between strong and weak regions inherent within the microstructure of α/β and near α titanium alloys, are validated through a matrix of experiments employing a non-standard variant of the alloy Ti 685. The grain size of the model material was deliberately processed to offer grains up to 20 mm in diameter, to facilitate constitutive measurements within individual grains. A range of experiments were performed under static and cyclic loading, with the fatigue cycle conducted under either strain or load control. Data will be reported to demonstrate significant variations in elastic and plastic properties between grains and emphasise the role of time dependent strain accumulation. Implications for the “dwell sensitive fatigue” or “cold creep” response of conventional titanium alloys will be discussed.https://www.mdpi.com/2075-4701/11/9/1456dwell fatiguecold creepmicrostructurally textured regionstitanium |
| spellingShingle | Elizabeth E. Sackett Martin R. Bache Novel Experimentation for the Validation of Mechanistic Models to Describe Cold Dwell Sensitivity in Titanium Alloys Metals dwell fatigue cold creep microstructurally textured regions titanium |
| title | Novel Experimentation for the Validation of Mechanistic Models to Describe Cold Dwell Sensitivity in Titanium Alloys |
| title_full | Novel Experimentation for the Validation of Mechanistic Models to Describe Cold Dwell Sensitivity in Titanium Alloys |
| title_fullStr | Novel Experimentation for the Validation of Mechanistic Models to Describe Cold Dwell Sensitivity in Titanium Alloys |
| title_full_unstemmed | Novel Experimentation for the Validation of Mechanistic Models to Describe Cold Dwell Sensitivity in Titanium Alloys |
| title_short | Novel Experimentation for the Validation of Mechanistic Models to Describe Cold Dwell Sensitivity in Titanium Alloys |
| title_sort | novel experimentation for the validation of mechanistic models to describe cold dwell sensitivity in titanium alloys |
| topic | dwell fatigue cold creep microstructurally textured regions titanium |
| url | https://www.mdpi.com/2075-4701/11/9/1456 |
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