Laser Powder Bed Fused IN718 Process-Structure-Property Investigations

A 2023 data repository from the National Institute of Standards and Technology contains three integrated studies on nickel-based alloy 718 (IN718) manufactured via laser powder bed fusion. The work investigates the influence of laser energy density and build orientation on grain structures, pore structures, surface roughness, high-cycle fatigue life, and tensile properties in the as-built condition. Data includes measurements from 25 distinct processing parameter sets and is organized into sub-folders with multiple file formats.

Use Cases

• Analyze the relationship between surface roughness measurements and high-cycle fatigue life across 25 different processing parameter sets.
• Model the effects of laser energy density and build orientation on tensile properties and pore structure characteristics.
• Investigate the correlation between build orientation, anisotropic grain morphology, and resulting yield strength.
• Use fractography analysis data from scanning electron microscopy to study defect-driven failure mechanisms.

Strengths

• Data originates from the authoritative National Institute of Standards and Technology.
• Integrates three distinct but related studies on a single material build, providing a multi-faceted view.
• Investigates a wide range of 25 different laser powder bed fusion processing parameter sets.

Limitations

• The dataset is focused on a single material (IN718) in the as-built condition, limiting generalizability to other alloys or heat-treated states.
• Sample data and specific column structures are unavailable, complicating initial assessment of data organization.
• Data is packaged in over 15 different file formats, which may require specialized tools for unified analysis.

Provenance

Source

National Institute of Standards and Technology

Collection Method

Experimental data from manufacturing IN718 parts via laser powder bed fusion, followed by material characterization and mechanical testing.

Freshness

Last updated in December 2023.