In situ monitoring of the melt pools in laser powder bed fusion (LPBF) has enabled elucidation process phenomena. There been an increasing interest also using pool to identify anomalies and control quality manufactured parts. However, a better understanding variability relation incidence internal flaws are necessary achieve this goal. This study aims link distributions dimensions signal charact...

Hastelloy X (HX) is a Ni-based superalloy which suffers from high crack susceptibility during the laser powder bed fusion (LPBF) process. In this work, the microstructure of as-built HX samples was rigorously investigated to understand the main mechanisms leading to crack formation. The microstructural features of as-built HX samples consisted of very fine dendrite architectures with dimensions...

One of the factors limiting use additive manufacturing, particularly powder bed processes, is their low productivity. An approach to increasing laser fusion (LPBF) build rate without costly hardware modifications alter process parameters. This study evaluates possibilities increase rates through this route compromising material quality. Equations for productivity are derived based on parameters...