[G] Alloys, Amorphous and Quasicrystals

2:10 PM - 2:25 PM JST(5:10 AM - 5:25 AM UTC)

[233] Effect of Preheating Mold on Viscous Flow Forming Using a Resistance Welding Machine of Zr-based Metallic Glass Rivets

○Takuto Kamijo¹, Taisei Ito¹, Tokujiro Yamamoto² (1. Graduate Student, Utsunomiya Univ., 2. Utsunomiya Univ.)

Keywords:

metallic glasees,viscous flow forming,rivets,resistance heating

Effect of mold preheating on the viscous flow forming of Zr-based metallic glass rivets using a DC inverter resistance welding machine was investigated. Preheating the mold to 100 °C improved filling by maintaining a low-viscosity supercooled liquid state. Hardness tests confirmed that the rivet shank remained amorphous without crystallization.