Control of Edge Plate Stray Grain of Single-Crystal Turbine Blade by Using Process Bar Method

Influence of platform position on stray grain nucleation in Ni-based single-crystal dummy blade clusters

“…focused on the formation of stray grains [7][8][9][10] and found that an abrupt variation in the cross-section, such as the platform, serves as the most likely position for stray grain formation. Meyer et al [11] illustrated that stray grains nucleated in thermal undercooling zones as a result of macroscopically curved isotherms sweeping through the platform extremities, which was confirmed by experiments and simulations [5,12,13] .…”