Effects of Process Interruption During Laser Powder Bed Fusion on Microstructural and Mechanical Properties of Fabricated Parts

dc.creatorMahtabi, MohammadBagher
dc.creatorYadollahi, Aref
dc.creatorStokes, Ryan
dc.creatorYoung, Joseph
dc.creatorDoude, Haley
dc.creatorPriddy, Matthew W.
dc.creatorBian, Linkan
dc.date.accessioned2023-01-19T16:07:00Z
dc.date.available2023-01-19T16:07:00Z
dc.date.issued2022
dc.description.abstractDespite appropriate planning, various incidents can stop the additive manufacturing (AM) process of metals and cause build interruption, such as power outage, lack of powder feedstock, and/or shielding gas to mention a few. Due to the layer-by-layer nature of fabrication, an interruption to the AM process can be resumed from the location where the stoppage occurred. However, build interruption may adversely affect the structural integrity of the fabricated parts, by causing localized failure near the interruption location. This study aims to investigate the influence of build interruption during the laser powder bed fusion (LPBF) process on the microstructural and mechanical properties of Ti-6Al-4V and Al-Si-10Mg specimens. For the Ti-6Al-4V specimens, results indicate that tensile failures near the interruption location are most likely to happen for non-heat-treated specimens in the as-built surface condition. Whereas for the Al-Si- 10Mg specimens, the failure location is more influenced by the prolonged stoppage and air exposure.en_US
dc.description.departmentMechanical Engineeringen_US
dc.identifier.urihttps://hdl.handle.net/2152/117247
dc.identifier.urihttp://dx.doi.org/10.26153/tsw/44128
dc.language.isoengen_US
dc.relation.ispartof2022 International Solid Freeform Fabrication Symposiumen_US
dc.rights.restrictionOpenen_US
dc.subjectBuild interruptionen_US
dc.subjectAdditive manufacturing (AM)en_US
dc.subjectFailure locationen_US
dc.subjectAl-Si-10Mgen_US
dc.subjectTi- 6Al-4Ven_US
dc.titleEffects of Process Interruption During Laser Powder Bed Fusion on Microstructural and Mechanical Properties of Fabricated Partsen_US
dc.typeConference paperen_US

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