|About this Abstract
||Materials Science & Technology 2019
||Advanced Manufacturing, Processing, Characterization and Modeling of Functional Materials
||Effects of Hot-isostatic Pressing on the Microstructural and Magnetic Properties Development in Permalloy-80 Manufactured by Laser Powder Bed Fusion
||Ji Zou, Abdel-Moez Mohamed, Chiu Tang, Sheng Li, Kai Bongs, Moataz M. Attallah
|On-Site Speaker (Planned)
Permalloy samples with composition of 79Ni-15Fe-6Mo were manufactured by laser powder bed fusion (LPBF) under different laser energy densities (Ed) ranging from 1.042 to 41.667 J/mm2. The as-fabricated samples were subsequently subjected to hot-isostatic pressing (HIP) to study the microstructural and magnetic properties development. The density, microstructure and magnetic properties of as-fabricated and as-HIPped samples were compared. When 1.36<Ed ≤9.03 J/mm2, after HIPping, the porosity of the cubes was reduced and the density decreased beyond this range due to the existence of open pores on these samples after LPBF. Strong (001) texture was found on the samples PLBFed at high Ed values and after HIPping, their (001) textures were enhanced. Random grain orientation was observed on the samples PLBFed at lower Ed range, their grain coarsening was noticed after HIPping whilst it has no influence on the grain orientation.