Metals and AlloysPublished 29 September 2022The application of in situ TEM on the grain boundary brittleness of precipitation-strengthened Ni-based superalloys: Recent progress and perspectiveQian Zhou · Qingqing Ding · Yuefei Zhang · Xiao Wei · Ze Zhang · Hongbin BeiFrontiers in Metals and Alloysdoi 10.3389/ftmal.2022.1016638