Examination of Dynamic Strain Ageing Effects during Rapid Quenching of Inconel 718 Superalloy Disc
| Autor: | Run Hua Song, Zhong Nan Bi, Hai Long Qin, Esteban P. Busso, Jun Wei, Ji Zhang, Dong-Feng Li |
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| Rok vydání: | 2021 |
| Předmět: |
010302 applied physics
Quenching Materials science Strain (chemistry) 02 engineering and technology 021001 nanoscience & nanotechnology Condensed Matter Physics 01 natural sciences Atomic and Molecular Physics and Optics Superalloy Residual stress Ageing 0103 physical sciences General Materials Science Composite material 0210 nano-technology Inconel |
| Zdroj: | Solid State Phenomena. 315:77-83 |
| ISSN: | 1662-9779 |
| DOI: | 10.4028/www.scientific.net/ssp.315.77 |
| Popis: | In this work, an experimental measurement, contour method, is implemented for an after quenching IN718 forging specimen to obtain the distribution of residual stress field. A sequentially coupled thermal mechanical finite element model is developed with the similar 3D geometry of the experimental specimen and implemented the same heat transfer boundary of the rapid quenching with the experimental condition. A thermal mechanical rate dependent continuum plasticity model for IN718 alloy, with the dynamic strain ageing (DSA) effect incorporated, is developed to study the impact of DAS effect on the evolution of residual stress during rapid quenching. The modelling predictions of residual stress are in good agreement with the contour method measurements. The impact of DSA effect is further quantified, indicating that an annular high plastic strain rate region in the core part of the disc is captured during the simulation of the quenching process. |
| Databáze: | OpenAIRE |
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