The development of a high-performance Ni-superalloy additively manufactured heat pipe

Abstract Additively manufacturing (AM) has been used to manufacture fine structures with structured/engineered porosity in heat management devices. In this study, laser powder bed fusion (LPBF) was a high-performance Ni-superalloy pipe, through tailoring LPBF process parameters fabricate thin wall and micro-channel. By using novel scanning strategies, wick structure pipes maximised surface-area-to-volume ratio, features size around 100 µm, controlled were successfully fabricated. Microscopy X-ray microtomography (micro-CT) investigate the 3D of void space within pipe. Wick test results showed that most made by had better performance than conventionally manufactured pipes. This study also investigated influences on volume fraction feature size. The could due change melt pool contact angle. relationship between bead reported help design pipe complex structure.