Mechanical behaviour of Ti6Al4V lattice structures manufactured by Electron Beam Melting

Mechanical behaviour of Ti6Al4V lattice structures manufactured by Electron Beam Melting | Research Square window.SnipcartSettings = { analytics: { enabled: false } }; (function() { var accessVector = localStorage.getItem('access_vector') || ''; window.dataLayer = window.dataLayer || []; if (accessVector) { window.dataLayer.push({ user: { profile: { profileInfo: { snid: accessVector } } } }); } })(); (function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src='https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);})(window,document,'script','dataLayer','GTM-K279D39R'); Browse Preprints In Review Journals COVID-19 Preprints AJE Video Bytes Research Tools Research Promotion AJE Professional Editing AJE Rubriq About Preprint Platform In Review Editorial Policies Our Team Advisory Board Help Center Sign In Submit a Preprint Cite Share Download PDF Research Article Mechanical behaviour of Ti6Al4V lattice structures manufactured by Electron Beam Melting Teresa Primo, Antonio Del Prete, Francesco Panella, Fabio De Pascalis This is a preprint; it has not been peer reviewed by a journal. https://doi.org/ 10.21203/rs.3.rs-7602259/v1 This work is licensed under a CC BY 4.0 License Status: Published Journal Publication published 07 Mar, 2026 Read the published version in The International Journal of Advanced Manufacturing Technology → Version 1 posted 5 You are reading this latest preprint version Abstract Additive manufacturing (AM) technologies allow the design and production of complex geometries, including structures designed to exhibit superior mechanical performance. Among these designs, there is growing interest in utilizing metal lattice structures, with specifically required properties, minimizing weight, for applications in both the mechanical and medical fields. The mechanical properties of such structures are strongly influenced by their shape and size. This study aims to investigate the influence of lattice topology, cell dimensions and beam diameter on the deformation and failure mechanisms of Ti6Al4V alloy structures manufactured by EBM under static compressive loading. A Design of Experiment (DOE) methodology was employed to determine the geometric parameters and dimensional characteristics of the unit cell for the final specimen configuration. A total of fifteen topological combinations was obtained and forty-five lattice specimens with three replicas for each cell type were manufactured with random order process to minimize manufacturing time variation and dependence. The full experimental testing results were analysed and compared in absolute terms and related to lattice density. Furthermore, a deep experimental microscopic analysis was conducted for a statistical analysis of representative beam diameters and real cell sizes for lattice samples. Additionally, micro-computed tomography (micro-CT) inspection was employed to verify defect presence (such as porosity) that may affect the mechanical behaviour. additive manufacturing Ti6Al4V titanium alloy lattice structure mechanical characterization micro-computed tomography electron beam melting Full Text Cite Share Download PDF Status: Published Journal Publication published 07 Mar, 2026 Read the published version in The International Journal of Advanced Manufacturing Technology → Version 1 posted Editorial decision: Major Revisions Needed 27 Nov, 2025 Reviewers agreed at journal 23 Sep, 2025 Reviewers invited by journal 23 Sep, 2025 Editor assigned by journal 15 Sep, 2025 First submitted to journal 12 Sep, 2025 You are reading this latest preprint version Research Square lets you share your work early, gain feedback from the community, and start making changes to your manuscript prior to peer review in a journal. As a division of Research Square Company, we’re committed to making research communication faster, fairer, and more useful. We do this by developing innovative software and high quality services for the global research community. Our growing team is made up of researchers and industry professionals working together to solve the most critical problems facing scientific publishing. Also discoverable on Platform About Our Team In Review Editorial Policies Advisory Board Help Center Resources Author Services Accessibility API Access RSS feed Manage Cookie Preferences © Research Square 2026 | ISSN 2693-5015 (online) Privacy Policy Terms of Service Do Not Sell My Personal Information {"props":{"pageProps":{"initialData":{"identity":"rs-7602259","acceptedTermsAndConditions":true,"allowDirectSubmit":false,"archivedVersions":[],"articleType":"Research Article","associatedPublications":[],"authors":[{"id":519599055,"identity":"89cf5dfb-5559-45d6-84e8-41ec73837dbb","order_by":0,"name":"Teresa 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Among these designs, there is growing interest in utilizing metal lattice structures, with specifically required properties, minimizing weight, for applications in both the mechanical and medical fields. The mechanical properties of such structures are strongly influenced by their shape and size.\u003c/p\u003e\u003cp\u003eThis study aims to investigate the influence of lattice topology, cell dimensions and beam diameter on the deformation and failure mechanisms of Ti6Al4V alloy structures manufactured by EBM under static compressive loading. A Design of Experiment (DOE) methodology was employed to determine the geometric parameters and dimensional characteristics of the unit cell for the final specimen configuration. A total of fifteen topological combinations was obtained and forty-five lattice specimens with three replicas for each cell type were manufactured with random order process to minimize manufacturing time variation and dependence. 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