高Fe、Cr含量多相Ni3Al基高温合金组织与性能研究进展
吴静,刘永长(
),李冲,伍宇婷,夏兴川,李会军
),李冲,伍宇婷,夏兴川,李会军
Recent Progress of Microstructure Evolution and Performance of Multiphase Ni3Al-Based Intermetallic Alloy with High Fe and Cr Contents
WU Jing,LIU Yongchang(),LI Chong,WU Yuting,XIA Xingchuan,LI Huijun
),LI Chong,WU Yuting,XIA Xingchuan,LI Huijun
图8. 铸态合金经800 ℃、1000 h时效并在800 ℃、220 MPa蠕变断裂后，试样近断口处γ'+γ两相组织内形成R型γ'筏状结构的SEM像
Fig.8. SEM image of the formed R-type γ' rafts in the γ'+γ dendrite of as-cast alloy after 800 ℃, 1000 h long-term ageing treatment and crept up to fracture at 800 ℃, 220 MPa
