Effect of interlayer rotation angle on microstructure and compressive properties of LPBF Ti–Zr–Nb–Sn alloys
Source abstract
Abstract
This work investigates the influence of interlayer rotation angle on thermal-field stability, microstructural evolution and mechanical response in laser powder bed fusion (LPBF)-fabricated Ti-22Zr-3Nb-3Sn alloys. Reducing rotation angle stabilizes heat-flow direction and enhances melt-pool overlap, promoting sustained epitaxial β growth and strong <001>//BD texture. Localized thermal excursions at small angles activate multivariant β→α″ transformation, producing hierarchical martensitic networks, whereas large angles disrupt thermal inheritance, refine β grains and generate α″ laths. These microstructural differences give rise to a clear mechanical ranking (21° > 44° ≈ 90° > 67°), with the 21° condition delivering the best strength-ductility combination (1732 MPa, 16.7%). The study identifies interlayer rotation as a powerful process parameter for tailoring melt-pool geometry, variant selection and hierarchical microstructure in LPBF β-Ti alloys.
Source: openalex_inverted_index · Quality: baseline
Research context
OpenAlex topics: Titanium Alloys Microstructure and Properties · Intermetallics and Advanced Alloy Properties · Shape Memory Alloy Transformations
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
References (44)
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