Forni, Daniele and Mazzucato, Federico and Valente, Anna and Cadoni, Ezio (2022) Additively manufactured Ni-based Inconel 718 alloy behaviour under harsh conditions ofstrain-rate and temperature. In: Dynamic Behaviour of Additively Manufactured Structures & Materials UNSPECIFIED.
Full text not available from this repository.Abstract
This paper presents the dynamic behaviour in a wide range of temperatures of additively manufactured and commercial Ni-based Inconel 718 alloys. The results highlight similar mechanical behaviour between as-built manufactured samples produced with a power laser of 400Wand as-cast samples. Samples produced at 400Wshow a higher presence of inclusions than those produced at 300W, leading to higher mechanical strength at room temperature. In contrast, at elevated temperatures, the di erence was drastically reduced (e.g. the variance between the UTS values is about 6%). The calibration of the Johnson-Cook strength model highlighted the necessity of using speci c thermal softening values (m) in particular ranges of strain rate and temperature.
| Item Type: | Article in conference proceedings or Presentation at a conference (Paper) |
|---|---|
| Subjects: | Engineering > Mechanical engineering Engineering > Mechanical engineering > Dynamics Engineering > Mechanical engineering > Mechanisms & machines |
| Department/unit: | Dipartimento ambiente costruzioni e design > Laboratorio SUPSI DYNAMAT |
| Depositing User: | Ezio Cadoni |
| Date Deposited: | 10 Jan 2023 05:30 |
| Last Modified: | 24 Aug 2023 14:00 |
| URI: | http://repository.supsi.ch/id/eprint/13699 |
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