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dc.contributor.authorJackson, Benen_NZ
dc.contributor.authorTorrens, Roben_NZ
dc.contributor.authorBolzoni, Leandroen_NZ
dc.contributor.authorYang, Feien_NZ
dc.contributor.authorFry, Mikeen_NZ
dc.contributor.authorMukhtar, Aamiren_NZ
dc.date.accessioned2018-06-18T04:12:30Z
dc.date.available2018-05-11en_NZ
dc.date.available2018-06-18T04:12:30Z
dc.date.issued2018en_NZ
dc.identifier.citationJackson, B., Torrens, R., Bolzoni, L., Yang, F., Fry, M., & Mukhtar, A. (2018). Additive manufacturing of Ti-6Al-4V with added boron: Microstructure and hardness modification. Key Engineering Materials, 770, 165–173. https://doi.org/10.4028/www.scientific.net/KEM.770.165en
dc.identifier.issn0250-9784en_NZ
dc.identifier.urihttps://hdl.handle.net/10289/11908
dc.description.abstractTitanium alloy composites with titanium boride (TiB) discontinuous reinforcement have shown improved performance in terms of strength, stiffness, and hardness. Producing this composite through selective laser melting (SLM) can combine the advantages of freeform design with the ability to produce TiB reinforcement in-situ. In this study, SLM was used to consolidate a pre-alloyed Ti-6Al-4V (Ti64) and amorphous boron (B) powder mixture with the intent of producing 1.5wt% TiB reinforcement in a Ti64 matrix. The processing parameters of laser power and scanning speed were investigated for their effect on the density, microstructures, and hardness of the composite material. The results showed that the boron and Ti64 composite could achieve a density greater than 99.4%. Furthermore, it was found that processing parameters changed the microstructural features of the material. The higher the energy density employed the more homogenous the distribution of boron modified material. Macro features were also observed with laser paths being clearly evident in the subsurface microstructure. Micro-hardness testing and density measurement also showed a corresponding increase with increasing energy density. Maximum hardness of 392.4HV was achieved in the composite compared to 354.2HV in SLM fabricated Ti64.
dc.format.mimetypeapplication/pdf
dc.language.isoen
dc.publisherTrans Tech Publicationsen_NZ
dc.relation.urihttps://www.scientific.net/KEM.770.165
dc.rightsThis is an author’s accepted version of an article published in the journal: Key Engineering Materials. © 2018 Trans Tech Publications, Switzerland.
dc.titleAdditive manufacturing of Ti-6Al-4V with added boron: Microstructure and hardness modificationen_NZ
dc.typeJournal Article
dc.identifier.doi10.4028/www.scientific.net/KEM.770.165en_NZ
dc.relation.isPartOfKey Engineering Materialsen_NZ
pubs.begin-page165
pubs.elements-id224270
pubs.end-page173
pubs.volume770en_NZ


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