The dataset is melt pool cross-sectional microscopy and measurements for 2D arrays of laser tracks on solid metal IN718 plates and single layers of IN718 powder on solid metal IN718 plates. The primary laser parameters such as laser power, speed, and spot diameter, and hatch spacing were fixed. The pad geometry, laser turnaround time (i.e., skywriting time), and powder layer thickness were the investigated variables. The experiments were part of AM Bench 2025 (AMB2025-06 and AMB2025-07 benchmarks).

The data are associated with figures in J. Bu, R. Gina, N. Shen, F. Zhang, A. Faisal, R. Tao, W. Xu, Phase-Change Polymer–Metal Composites with Tunable Thermal Conductivity and Their Additive Manufacturing, ACS Appl. Eng. Mater. 2026, 4, 2, 1037–1046. https://doi.org/10.1021/acsaenm.5c01153

This data publication includes the AM Bench answer key for two AMB2025-01 Challenge Problems that were posed to the AM modeling community:

This record contains example supporting documents and data for "Extreme size and irradiance dependence in high-resolution vat photopolymerization of hydrogels" available online at https://doi.org/10.1002/smtd.202502336.

In the main .zip file, there are three subfolders and one python script.

This repository provided code for NIST Low-Cost Environmental Sensing System stations, used for the real-time measurement of CO2 and meteorological parameters in the Washington, D.C. region. A wiki with additional information on system construction and operations is also included so others may continue utilizing and innovating this custom solution.

The following data files include mechanical behavior and corresponding X-ray diffraction measurement results associated with the 2022 Additive Manufacturing Benchmark test series (AM Bench) AMB2022-04 set of benchmarks. This set of benchmarks is a direct extension to the measurement data provided by an earlier set of benchmarks, AMB2018-01.

This Photopolymer AM Bench-2025 Challenge is to predict the cure depth versus radiant exposure (often called dose) of prototypical resins with varying monomer functionality and photoabsorber type, for irradiation with narrow-bandwidth (< 5 nm) 385 nm or broad-bandwidth (> 10 nm) 405 nm ot 385 nm light. Fluorescing and non-fluorescing absorbers will be considered. Specimens will be large enough such that size-dependent effects are negligible. Modelers will be provided with reactivity and thermophysical property data for the resins as well as radiometric data for the light sources.

Specimens from one build of laser powder bed fusion (PBF-L) titanium alloy (Ti-6Al-4V) were split equally into two heat treatment conditions. The first condition is a non-standard hot isostatic pressing (HIP) heat treatment (800 °C, 2 h, argon pressure of 200 MPa, approximately 12 °C/min cooling rate), which will be referred to as 800HIP. The second condition is the same heat treatment but in a vacuum furnace with a partial pressure of argon (75 mTorr), and will be referred to as 800VAC.

This challenge is a follow-on from AMB2022-01 laser powder bed fusion (PBF-LB) alloy Inconel 718 in the as-built condition (no heat treatment). Eight continuum-but-miniature tensile specimens were excised from the same size legs (2.5 mm width) of one original AMB2022-01 specimen (AMB2022-718-AMMT-B7-P4). Excised tensile specimens were quasi-static uniaxially tensile tested according to ASTM E8 (strain rate 1*10-3 sec-1, 3 mm gauge length custom contact extensometer).

These sets of automated serial sectioning electron backscatter diffraction (EBSD) and X-ray computed tomography (XRCT) measurements were designed to produce spatially registered, multi-modal datasets within a region of interest (ROI) of an additive manufacturing benchmark test series (AM Bench) nickel alloy 718 specimen produced using laser powder bed fusion (PBF-LB) additive manufacturing (AM). The serial sectioning data are in the form of 2D slices which were reconstructed and registered to make 3D data sets that can be analyzed and visualized using open source software.