[G] Biomaterials Development and Clinics(1)

1:30 PM - 1:45 PM JST(4:30 AM - 4:45 AM UTC)

[36] Process optimization of high-density, crack-free tungsten by powder bed fusion electron beam melting

○Taeheon Kim¹, Seungkyun Yim², Akihiko Chiba¹ (1. Tohoku Univ.NICHe, 2. Tohoku Univ.)

Keywords:

Tungsten,Additive manufacturing,PBF-EB,Internal defect,Cracking

Powder bed fusion electron beam melting was applied to fabricate high-density crack-free pure tungsten. Process parameters were optimized under high temperature preheating. The relationships between surface morphology, internal defects, and cracking behavior