Hot deformation behaviour of Inconel 718 superalloy by SLM 3D-printing

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61989100%3A27360%2F24%3A10255490" target="_blank" >RIV/61989100:27360/24:10255490 - isvavai.cz</a>
Result on the web
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DOI - Digital Object Identifier
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Result language
angličtina
Original language name
Hot deformation behaviour of Inconel 718 superalloy by SLM 3D-printing
Original language description
The purpose of this research was to examine the deformation behaviour of a 3D-printed workpiece from the Inconel 718 superalloy. The 3D printed samples were produced using the selective laser melting SLM method when the metal powder is gradually melting with using a powerful laser. The SLM samples were subjected to uniaxial hot compression tests at the temperature range of 900 - 1200 oC and, combined with a strain rate range of 0.1 - 10 sMINUS SIGN 1 .The experimental data obtained revealed a minimal and maximal flow stress level of 98 MPa and 683 MPa as for the combination of 1200 oC - 0.1 sMINUS SIGN 1 and 900 oC - 10 sMINUS SIGN 1 , respectively. Visual observation and hardness measurements confirmed that higher strain rates and lower temperatures result in greater strain hardening of the material, which can reduce or eliminate the disadvantages of 3D printing technology. The sample tested at a deformation temperature of 900oC with a combined strain rate of 10 sMINUS SIGN 1 exhibited the highest microhardness value of 410 HV.
Czech name
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Czech description
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Publication year
2024
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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