Numerical Investigation into the Influence of Grain Orientation Distribution on the Local and Global Elastic-Plastic Behaviour of Polycrystalline Nickel-Based Superalloy INC-738 LC
Polycrystalline nickel-based superalloys tend to have large grains within component areas where high loads are dominant during operation. Due to these large grains, caused by the manufacturing and cooling process, the orientation of each grain becomes highly important, since it influences the elasti...
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| Format: | Article |
| Language: | English |
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MDPI AG
2022-01-01
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| Series: | Crystals |
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| Online Access: | https://www.mdpi.com/2073-4352/12/1/100 |
| _version_ | 1797494865878056960 |
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| author | Benedikt Engel Mark Huth Christopher Hyde |
| author_facet | Benedikt Engel Mark Huth Christopher Hyde |
| author_sort | Benedikt Engel |
| collection | DOAJ |
| description | Polycrystalline nickel-based superalloys tend to have large grains within component areas where high loads are dominant during operation. Due to these large grains, caused by the manufacturing and cooling process, the orientation of each grain becomes highly important, since it influences the elastic and plastic behaviour of the material. With the usage of the open source codes NEPER and FEPX, polycrystalline models of Inconel 738 LC were generated and their elastic and crystal plasticity behaviour simulated in dependence of different orientation distributions under uniaxial loading. Orientation distributions close to the [100] direction showed the lowest Young’s moduli as well as the highest elastic strains before yielding, as expected. Orientations close to the [<inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><mover accent="true"><mn>5</mn><mo>¯</mo></mover></semantics></math></inline-formula>89] direction, showed the lowest elastic strains and therefore first plastic deformation under strain loading due to the highest shear stress in the slip systems caused by the interaction of Young’s modulus and the Schmid factor. |
| first_indexed | 2024-03-10T01:40:27Z |
| format | Article |
| id | doaj.art-81a41f769d90425f86b72b59a7d135ce |
| institution | Directory Open Access Journal |
| issn | 2073-4352 |
| language | English |
| last_indexed | 2024-03-10T01:40:27Z |
| publishDate | 2022-01-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Crystals |
| spelling | doaj.art-81a41f769d90425f86b72b59a7d135ce2023-11-23T13:25:12ZengMDPI AGCrystals2073-43522022-01-0112110010.3390/cryst12010100Numerical Investigation into the Influence of Grain Orientation Distribution on the Local and Global Elastic-Plastic Behaviour of Polycrystalline Nickel-Based Superalloy INC-738 LCBenedikt Engel0Mark Huth1Christopher Hyde2Gas Turbine and Transmissions Research Centre (G2TRC), University of Nottingham, Nottingham NG7 2RD, UKGas Turbine and Transmissions Research Centre (G2TRC), University of Nottingham, Nottingham NG7 2RD, UKGas Turbine and Transmissions Research Centre (G2TRC), University of Nottingham, Nottingham NG7 2RD, UKPolycrystalline nickel-based superalloys tend to have large grains within component areas where high loads are dominant during operation. Due to these large grains, caused by the manufacturing and cooling process, the orientation of each grain becomes highly important, since it influences the elastic and plastic behaviour of the material. With the usage of the open source codes NEPER and FEPX, polycrystalline models of Inconel 738 LC were generated and their elastic and crystal plasticity behaviour simulated in dependence of different orientation distributions under uniaxial loading. Orientation distributions close to the [100] direction showed the lowest Young’s moduli as well as the highest elastic strains before yielding, as expected. Orientations close to the [<inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><mover accent="true"><mn>5</mn><mo>¯</mo></mover></semantics></math></inline-formula>89] direction, showed the lowest elastic strains and therefore first plastic deformation under strain loading due to the highest shear stress in the slip systems caused by the interaction of Young’s modulus and the Schmid factor.https://www.mdpi.com/2073-4352/12/1/100nickel-based superalloyanisotropyslip system modellingSchmid factorYoung’s moduli |
| spellingShingle | Benedikt Engel Mark Huth Christopher Hyde Numerical Investigation into the Influence of Grain Orientation Distribution on the Local and Global Elastic-Plastic Behaviour of Polycrystalline Nickel-Based Superalloy INC-738 LC Crystals nickel-based superalloy anisotropy slip system modelling Schmid factor Young’s moduli |
| title | Numerical Investigation into the Influence of Grain Orientation Distribution on the Local and Global Elastic-Plastic Behaviour of Polycrystalline Nickel-Based Superalloy INC-738 LC |
| title_full | Numerical Investigation into the Influence of Grain Orientation Distribution on the Local and Global Elastic-Plastic Behaviour of Polycrystalline Nickel-Based Superalloy INC-738 LC |
| title_fullStr | Numerical Investigation into the Influence of Grain Orientation Distribution on the Local and Global Elastic-Plastic Behaviour of Polycrystalline Nickel-Based Superalloy INC-738 LC |
| title_full_unstemmed | Numerical Investigation into the Influence of Grain Orientation Distribution on the Local and Global Elastic-Plastic Behaviour of Polycrystalline Nickel-Based Superalloy INC-738 LC |
| title_short | Numerical Investigation into the Influence of Grain Orientation Distribution on the Local and Global Elastic-Plastic Behaviour of Polycrystalline Nickel-Based Superalloy INC-738 LC |
| title_sort | numerical investigation into the influence of grain orientation distribution on the local and global elastic plastic behaviour of polycrystalline nickel based superalloy inc 738 lc |
| topic | nickel-based superalloy anisotropy slip system modelling Schmid factor Young’s moduli |
| url | https://www.mdpi.com/2073-4352/12/1/100 |
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