[G] Heat Resistant Materials

[109] The influence of B and Re addition on the microstructure and mechanical properties of Co–Ni-based superalloy

*Huakang BIAN¹, Lingxiao Ouyang², Yujie Cui¹, Kenta Yamanaka¹, Akihiko Chiba¹ (1. IMR, 2. Tohoku Uni. Graduate School of Engineering)

Keywords:superalloy、Co-Ni-based、creep

Addition of B and Re could promote the precipitate along GBs which can be used to enhance the GBs strength especially at high temperature.