Microstructure and texture study on an advanced heat-resistant alloy during creep
作者： Yu Zhang , Hongyang Jing , Lianyong Xu , Lei Zhao , Yongdian Han
DOI: 10.1016/J.MATCHAR.2017.05.037
关键词: Microstructure 、 Creep 、 Texture (crystalline) 、 Materials science 、 Grain boundary 、 Dislocation creep 、 Alloy 、 Laves phase 、 Dislocation 、 Metallurgy
摘要: Abstract In the present work, creep deformation and fracture behaviours of Sanicro 25 alloy were obtained based on long-term creep-strain tests. The multiscale precipitation calculated thermodynamically inspected by examination microstructure as-crept alloy. Creep cavitation nucleation near M 23 C 6 precipitates an increase in amount Laves phase with increased time observed. nanoscale MX-type Cu-rich phases found distributed evenly within alloy, which leads to high resistance at elevated temperatures. dislocation substructure evolution was surveyed, cells discovered abundance during creep. grain orientation transformation before after analysed, 〈111〉//RD 〈001〉//RD detected as preferred orientations number low-misorientation angles boundaries due presence rotation cells.
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