4 papers · 1 filter
High-Ti induced planar-fault transformation toward superlattice extrinsic stacking faults and microtwins in crept CoNi-based superalloys
Zhida Liang, Xiang Xu, Fengxian Liu +7
Controlling planar fault shearing mechanisms is key for improving the high-temperature creep performance of gamma prime-strengthened high-temperature superalloys. This work examine…
Extreme high lattice-misfit superalloys with regular cubic L12 particles and excellent creep resistance
Zhida Liang, Andreas Stark, Florian Pyczak
In novel Co and CoNi based superalloys, the creep resistance is limited at high temperatures due to low lattice misfit and solvus temperature. In this study, we combined the advant…
Crystal rotation during alloy heating
Zhida Liang, Emad Maawad, Florian Pyczak
Over past decades, high energy X-ray diffraction techniques at synchrotron beamline offer us the unique possibility to follow concomitantly some mechanisms on the grain level in me…
Vacancies making jerky flow in complex alloys
Zhida Liang, Fengxian Liu, Li Wang +4
Longevity of materials, especially alloys, is crucial for enhancing the sustainability and efficiency of various applications, including gas turbines. Jerky flow, also known as dyn…