AM Bench 2022 Microstructure Measurement Follow-On for AM Bench 2018 IN625 3D Builds

The following data files include microstructure measurement results associated with the 2022 Additive Manufacturing Benchmark test series (AM Bench) AMB2022-05 benchmark. This benchmark is a direct extension to the measurement data provided by the earlier benchmark AMB2018-01. For AMB2018- 01, data were provided for laser powder bed fusion (LPBF) builds of IN625, including powder characterization, detailed information about the build process, in situ measurements during the build, ex situ measurements of the residual stresses, part distortion following partial cutting off the build plate, location-specific microstructure characterization, and microstructure evolution during a post build heat treatment. Through interactions with the AM modeling community, it became clear that additional microstructure characterization data would prove useful. AMB2022-05 extends the previous microstructure data to include three additional data sets: 1) large-area SEM characterization of the mid-plane of the bridge specimen, including part of the baseplate, 2) multiple SEM cross sections of a complete test artifact parallel to the baseplate, and 3) a 3D microstructure measurement obtained through serial sectioning with optical and SEM imaging. When the original AMB2018-01 specimens were produced, a full build plate of four IN625 bridge specimens was reserved for future use and two of these were used to provide samples for AMB2022-05. Because several microstructure-related challenge problems were conducted for these builds in 2018, we added just a single challenge for these new 2022 data, CHAL-AMB2022-05-MS. Here, we provide the results of the measurements directly associated with this challenge problem along with the challenge answer keys. The other AMB2022-05 data sets will be published soon.Detailed descriptions of the earlier AMB2018-01 builds and benchmark measurements are found at www.nist.gov/ambench/amb2018-01-description and the AMB2018-01 measurement results are found at www.nist.gov/ambench/benchmark-test-data.

以下数据集文件收录了与2022年增材制造基准测试系列（Additive Manufacturing Benchmark，简称AM Bench）下AMB2022-05基准相关的显微组织测量结果。
该基准是此前AMB2018-01基准所提供测量数据的直接延伸。
针对AMB2018-01基准，数据集提供了IN625合金激光粉末床熔融（Laser Powder Bed Fusion，简称LPBF）成形件的相关数据，涵盖粉末表征、成形工艺详细信息、成形过程中原位测量、残余应力非原位测量、从成形基板上部分切断后的构件变形、特定位置显微组织表征，以及成形后热处理过程中的显微组织演变等内容。
通过与增材制造建模领域从业者的交流，我们发现补充显微组织表征数据将极具应用价值。
AMB2022-05在原有显微组织数据基础上新增了三类数据集：1）桥接试样中平面（含部分基板）的大面积扫描电子显微镜（Scanning Electron Microscope，简称SEM）表征结果；2）与基板平行的完整测试工件的多组SEM截面表征结果；3）通过光学成像与SEM成像串行切片技术获得的三维显微组织测量数据。
在制备首批AMB2018-01试样时，研究团队预留了一整版包含4个IN625桥接试样的成形基板以备后续使用，其中2个被用于获取AMB2022-05基准所需的试样。
由于2018年已针对该批次成形件开展了多项与显微组织相关的挑战赛题目，本次我们仅为2022年新增的数据集增设了一道挑战赛题目：CHAL-AMB2022-05-MS。
本数据集提供了与该挑战赛题目直接相关的测量结果，同时附带挑战赛参考答案。
AMB2022-05基准的其余数据集将择期发布。
此前AMB2018-01基准的成形件与基准测试详细说明可访问网址www.nist.gov/ambench/amb2018-01-description获取，其测量结果可访问www.nist.gov/ambench/benchmark-test-data查询。