Trace-IN625: a source aware literature derived dataset of tensile properties and microstructure for additively manufactured IN625

Abstract

Trace-IN625 is a source-aware, literature-derived dataset of tensile properties and supporting microstructure information for additively manufactured IN625. It organizes published measurements into individually retrievable material-condition records, preserving source references, processing and heat-treatment information, measurement definitions and test context where available. The resource supports literature-based comparison of tensile properties and inspection of the published evidence associated with reported material states. The literature index contains 305 publications, of which 72 contribute the 149 retained tensile-property records. These records contain 391 populated property values: 114 yield-strength values, 139 ultimate-tensile-strength values and 138 elongation values. The tensile layer distinguishes 120 IN625 records from 29 records concerning IN625-containing composite, graded or joined materials, enabling users to select the relevant material population before analysis. The release comprises six core tables in UTF-8 CSV format: papers.csv — 305 records: bibliographic information and identifiers for the indexed source publications. specimens.csv — 482 records: specimen labels, material states or source conditions, with associated processing and post-treatment information. These entries do not represent 482 independent experimental replicates. tensile_properties.csv — 149 records: reported tensile properties, measurement definitions, test conditions, source locators and available uncertainty information. microstructure_records.csv — 2,206 records: microstructure descriptions and source-text or figure evidence. This layer is predominantly descriptive and indexed evidence, rather than a collection of quantitative microstructural measurements. figure_index.csv — 2,263 records: indexed source figures or graphical objects, including provenance and public-crop availability. image_crops_manifest.csv — 280 records: metadata for the 280 released PNG crops, including identifiers, file paths, checksums, dimensions, source attribution and licence information. The package also includes a data dictionary, controlled vocabularies, source-review records, validation outputs, plotting data, retrieval examples and executable release-checking scripts. Linked identifiers connect publications, material conditions, tensile records and figure evidence. Source checking combines AI-assisted comparison with the publications and author review; accompanying software checks assess relational consistency and deposited-file integrity. Reuse should account for material scope, processing state, measurement definition, temperature and loading direction. Missing values and unspecified uncertainties must not be interpreted as zero. Qualitative room-temperature descriptions are retained separately from numerical temperatures, and explicitly identified true-strain values remain distinguishable from other elongation quantities. The image collection provides contextual evidence from published figures. It does not contain instrument-native characterization data or raw EBSD orientation maps, and shared publication identifiers do not establish specimen-level correspondence between micrographs and tensile measurements. Structured metadata are released under CC BY 4.0. Third-party image crops retain their recorded source-specific licences; attribution and modification details are provided in image_crops_manifest.csv and LICENSING.md. Full source PDFs are not included.