Phase Equilibria in Co-rich Co-Al-W alloys at 1300℃ and 900℃

摘要：

The phase equilibria of Co-base trial alloys of Co-9Al-7.5W, Co-5.5Al-10W and Co-9Al-3W at 1300℃ and 900℃ were determined in the present investigation. The experimental alloys were γ single-phase alloys at 1300℃, although the existence of the γ phase and the ε phase was identified due to cooling effect. The nearly cuboidal γ phase and the plate-like DO19 phase in alloys 9Al-7.5W and 5.5Al-10W were coarsened after long-term annealing at 900℃. It is suggested that the alloy 9Al-7.5W was in γ+γ two-phase region, while the alloys 5.5Al-10W and 9Al-3W were in γ+DO19 two-phase region and γ singe-phase region at 900℃, respectively.

关键词： Co-base superalloys microstructure phase equilibria

作者: Fei Xue Meiling Wang Qiang Feng

作者单位: State Key Laboratory for Advanced Metals and MaterialsUniversity of Science and Technology Beijing, National Center for Materials Service SafetyUniversity of Science and Technology Beijing, Beijing 10 State Key Laboratory for Advanced Metals and Materials University of Science and Technology Beijing,

会议类型: 国际会议

会议名称: 11th IUMRS International Conference in Asia(第十一届国际材联亚洲材料大会 IUMRS-ICA 2010)

会议地点: 青岛

会议语种:英文

页码: 388-391

在线出版日期: 2010-09-25（万方平台首次上网日期，不代表论文的发表时间）