Description
Modelling, measurements and management of residual stress during manufacturing of high-value components made from nickel-based superalloysNickel-based superalloys are often among the selected engineering materials for critical applications due to their excellent thermo-mechanical properties, good weldability and high corrosion resistance. To acquire these desirable properties, their microstructure needs to be designed and controlled during manufacturing processes, which typically include sequential thermo-mechanical processing, heat treatment and quenching. The thermal gradients experienced by a part during quenching from the solution heat treatment temperatures can generate residual stress fields of significantly high magnitudes. The subsequent aging heat treatments at lower temperatures might relieve these stresses, however, it is rare for the stress field to be completely relaxed. These stresses can affect later stages of manufacturing, i.e., distortion out of dimensional tolerance during machining. This presentation summarises the results of trials on the effects of quenching configuration and extreme temperature gradients on residual stress distribution, including modelling and experimental measurements, in scaled components of IN718 nickel based superalloy.
| Period | 23 May 2023 → 25 May 2023 |
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| Event type | Conference |
| Conference number | 17 |
| Location | Manchester, United KingdomShow on map |