Assessing the Feasibility of Process Window Estimation for L-PBF Ti-6Al-4V through Hardness Measurements

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dc.creatorPoudel, Arun
dc.creatorYasin, Mohammad Salman
dc.creatorShao, Shuai
dc.creatorShamsaei, Nima
dc.date.accessioned2023-02-10T14:23:05Z
dc.date.available2023-02-10T14:23:05Z
dc.date.issued2022
dc.description.abstractOptimizing the process window for an additively manufactured material using X-ray computed tomography (XCT) is a time-, labor-, and capital-intensive process where a large number of coupons need to be analyzed in the process parameter space. Hence, as a cheaper and faster alternative, this study assessed the relationship between relative density and hardness of laser powder bed fused (L-PBF) Ti-6Al-4V. Coupons with different levels of porosity were fabricated by changing the recommended laser power in the range of ±20% in an interval of 10%. The martensitic microstructure didn’t vary significantly with the change in laser power. On the other hand, Rockwell C hardness (HRC) did. HRC was observed to be in good correlation with the defect content in the coupons. Higher defect content in the coupons resulted in lower HRC and vice versa. Hence, the hardness measurement technique can be used to estimate the process window of L-PBF Ti-6Al-4V.en_US
dc.description.departmentMechanical Engineeringen_US
dc.identifier.urihttps://hdl.handle.net/2152/117453
dc.identifier.urihttp://dx.doi.org/10.26153/tsw/44334
dc.language.isoengen_US
dc.relation.ispartof2022 International Solid Freeform Fabrication Symposiumen_US
dc.rights.restrictionOpenen_US
dc.subjectLaser powder bed fusion (L-PBF)en_US
dc.subjectNon-destructive testingen_US
dc.subjectX-ray computed tomographyen_US
dc.subjectProcess windowen_US
dc.subjectRockwell hardnessen_US
dc.titleAssessing the Feasibility of Process Window Estimation for L-PBF Ti-6Al-4V through Hardness Measurementsen_US
dc.typeConference paperen_US

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