[S1] S1.Multi-scale analysis of elementary processes in plasticity (VI)

[S1.17] Identification of dominant contributors to high strength of additive-manufactured Al-Si alloy by in-situ X-ray diffraction in tensile tests

*Naoki TAKATA¹, Mulin LIU¹, Masahiro HIRATA², Asuka SUZUKI¹, Makoto KOBASHI¹, Masaki KATO³, Hiroki ADACHI⁴ (1. Nagoya Univ., 2. Unv. Hyogo (Graduate student), 3. Aichi Center for Industry and Science Technology, 4. Unv. Hyogo)

Keywords:アルミニウム合金、レーザ粉末床溶融結合、その場X線回折、塑性変形、応力分配

Al–Si系合金積層造形体の高強度の支配因子を明らかにするため，SPring-8放射光を用いた引張試験／その場X線回折測定によりAl–Si２元系合金造形体の引張変形に伴う相応力と転位密度の変化を調べた．