NEMARCO project: Dataset for the publication "Development of a new manufacturing route for NiCrSiFeB alloys by Direct Energy Deposition Laser Beam process (LMD)"

<strong>LMD dataset</strong> This dataset gathers data from different parts of the Laser Metal Deposition metal Additive Manufacturing process (DED-LB). The dataset covers not only the process development data for samples manufacturing and monitored data of the melt pool size during the process, but also the metrics associated to the powder feedstock consumption, energy consumption and process efficiency. <strong>Motivation</strong> Nickel-based NiCrSiFeB alloy (Ni-Cr-Si-B self-fluxing family) are excellent candidates for replacing Cobalt-based alloys in aeronautical components such as sealing rings, valve seats, sliding bearing seats, etc. In this type of components, commonly manufactured by centrifugal casting and conventional processes, high temperature wear and stiffness under complex thermo-mechanical stresses cause lack of sealing and an increase in the wear rate. Metal additive manufacturing by direct laser metal deposition with powder (p-LMD) is presented as a potential manufacturing route for the complex processing of this type of alloys. This research work deals with the development of a new manufacturing route using p-LMD that ranges from the proper selection of the chemical composition for the starting powders, the development of the LMD process parameters to tackle the challenges associated to the wide solidification range and crack susceptibility of Ni-Cr-Si-B alloys, its monitoring and control, as well as the post- processing required to achieve the manufacture of aeronautical components.<strong>LMD数据集</strong> 本数据集采集自激光金属沉积（Laser Metal Deposition）金属增材制造工艺（DED-LB）的多个环节。该数据集不仅涵盖试样制备的工艺开发数据与工艺过程中熔池尺寸的监测数据，还包含与粉末原料消耗量、能源消耗量及工艺效率相关的各项指标。<strong>研究动机</strong> 镍基NiCrSiFeB合金（Ni-Cr-Si-B自熔合金系列）是航空航天部件中替代钴基合金的优质候选材料，可用于密封环、阀座、滑动轴承座等部件。此类部件传统上多采用离心铸造及常规工艺制造，在复杂热机械应力作用下的高温磨损与刚度不足会导致密封失效，并提升磨损速率。采用粉末进料直接激光金属沉积（powder-fed Laser Metal Deposition, p-LMD）金属增材制造工艺，为这类合金的复杂构件制造提供了极具潜力的工艺路径。本研究致力于开发基于p-LMD的新型制造工艺路线，涵盖起始粉末的化学成分精准筛选、针对Ni-Cr-Si-B合金宽凝固区间与裂纹敏感性挑战的LMD工艺参数开发、工艺监测与控制，以及实现航空部件制造所需的后处理环节。