Microstructural and Mechanical Performance of Al2O3 Nanoparticle Reinforced 17-4 PH Stainless Steel Bulk Composite Parts Fabricated by Laser Engineered Net Shaping Process

dc.creatorNing, Fuda
dc.creatorHu, Yingbin
dc.creatorLiu, Zhichao
dc.creatorWang, Hui
dc.creatorCong, Weilong
dc.creatorLi, Yuzhou
dc.date.accessioned2021-10-27T21:15:57Z
dc.date.available2021-10-27T21:15:57Z
dc.date.issued2016
dc.description.abstractAlloy 17-4 PH (AISI 630) is a precipitation-hardening martensitic stainless steel that has been extensively employed in the industries of aerospace, marine, and chemical. In this study, bulk parts of both 17-4 PH and Al2O3 reinforced 17-4 PH composites were fabricated on a steel substrate by laser engineered net shaping (LENS) process to investigate the effects of Al2O3 reinforcements on the part performance. The 17-4 PH powders were pre-mixed with Al2O3 nanoparticles by ball milling. The microstructures of both parts were observed using scanning electron microscopy and mechanical properties including microhardness and compressive properties were evaluated by means of a Vickers microhardness tester and a universal tester, respectively. The results indicate that Al2O3 reinforced 17-4 PH composite parts fabricated by LENS process exhibited superior microhardness and compressive properties as compared to pure 17-4 PH parts.en_US
dc.description.departmentMechanical Engineeringen_US
dc.identifier.urihttps://hdl.handle.net/2152/89616
dc.language.isoengen_US
dc.publisherUniversity of Texas at Austinen_US
dc.relation.ispartof2016 International Solid Freeform Fabrication Symposiumen_US
dc.rights.restrictionOpenen_US
dc.subjectlaser engineered net shapingen_US
dc.subjectLENSen_US
dc.subjectAl2O3 nanoparticle reinforced compositesen_US
dc.subjectmicrostructuresen_US
dc.subjectmicrohardnessen_US
dc.subjectcompressive propertiesen_US
dc.titleMicrostructural and Mechanical Performance of Al2O3 Nanoparticle Reinforced 17-4 PH Stainless Steel Bulk Composite Parts Fabricated by Laser Engineered Net Shaping Processen_US
dc.typeConference paperen_US

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