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

作     者：Sheng Li Khamis Essa James Carr States Chiwanga Andrew Norton Moataz M.Attallah 

作者机构：School of Electromechanical EngineeringGuangdong University of TechnologyGuangzhou 510006People’s Republic of China School of EngineeringUniversity of BirminghamEdgbastonBirmingham B152TTUK Henry Moseley X-ray Imaging FacilityHenry Royce Institute for Advanced MaterialsDepartment of MaterialsUniversity of ManchesterManchester M139PLUK European Thermodynamics Ltd8 Priory Business ParkWistow RoadKibworthLeicestershire LE80RXUK Rolls-Royce plcP.O.Box 31Derby DE248BJUK School of Metallurgy and MaterialsUniversity of BirminghamEdgbastonBirmingham B152TTUK 

出 版 物：《Advances in Manufacturing》 (先进制造进展（英文版）)

年 卷 期：2022年第10卷第4期

页      面：610-624页

核心收录：

学科分类：08[工学] 080502[工学-材料学] 0805[工学-材料科学与工程（可授工学、理学学位）] 

基　　金：The authors would like to acknowledge Rolls-Royce plc,Aerospace Technology Institute,and Innovate UK for funding this research through the Advanced Repair Technologies(113015)programme The CT scans were performed in the University of Manchester,which was established through EPSRC Grants EP/F007906/1,EP/I02249X/1 and EP/F028431/1 HMXIF is a part of the Henry Royce Institute for Advanced Materials,established through EPSRC Grants EP/R00661X/1,EP/P025498/1 and EP/P025021/1." 

主　　题：Laser powder bed fusion(LPBF) Heat pipe Melt pool Microtomography(micro-CT) 

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