Abstract The microstructure of ERNiCrFe-13 multipass weld metal has been shown to contain Laves/γ or σ/γ eutectic constituents that can increase susceptibility solidification and liquation cracking resulting from the low reaction temperature. Under poor heat dissipation conditions such as on edge large thickness welded components, a partially melted zone (PMZ) may form in during welding. micros...

The hot ductility of cast ATI® 718Plus® was assessed using the Gleeble thermo-mechanical simulator after being subjected to different homogenisation heat treatments. deteriorated significantly long-dwell treatments for 24 h at temperatures 1120 and 1190 °C as compared with those treated a short dwell time 4 same temperatures. observed deterioration related more extensive liquation along grain b...

High entropy CoCrFeNiCux alloys with a Cu molar ratio of x ≈ 0, 0.5, 1, 1.5 and 2 were arc welded. Solidification cracking occurred in the fusion zones 1 1.5. Cu-rich material was observed around cracks, increasing quantity content. Liquation partially melted zone next to zone, it propagated into as solidification cracking. A recently proposed index for susceptibility tried, i.e., |dT/d(fS)1/2|...

The solidification cracking behavior in laser welds of steel/copper dissimilar metals was systematically investigated. T2 copper and SUS304 stainless steel were used the study. results showed that occurrence synergistic effect ? phase liquation, inclusions composition segregation. During welding process, liquation grain boundaries substantially reduced cohesion between adjacent grains, as well ...