[S6] S6.Creation of Materials by Super-Thermal Field II: Innovation in Materials Science through Additive Manufacturing（3）

[S6.45] Effects of Heterogeneous Nucleation Site Particles on Formability and Strength of Powder-type Directed Energy Deposition Methods

*Yoshimi Watanabe¹, Shimon Sekiyama¹, Hisashi Sato¹, Mami Mihara-Narita¹, Tomokazu Moritani¹, Motoko Yamada¹, Masahiro Nishida¹, Yoji Miyajima², Kaname Fujii³, Taisei Yach³, Ayahito Saikai³, Masato Ono⁴ (1. Nagoya Institute of Technology, 2. Kanazawa University, 3. Industrial Research Institution of Ishikawa, 4. Industrial Research Center of Shiga Prefecture)

Keywords:積層造形、指向性エネルギー堆積法（DED法）、ヘテロ凝固核、エピタキシャル成長、結晶粒微細化

ヘテロ凝固理論が粉末式指向性エネルギー堆積法（DED法）でも作用するかを確認するため，SUS316Lを用い，造形性および組織に及ぼすSrOヘテロ凝固核粒子添加の影響を調査した．