摘要
镍基高温合金以其优异的抗疲劳性能、韧性、高温蠕变强度、表面稳定性、抗氧化和抗热腐蚀性能,在航空航天领域引起了广泛的关注。γ'相为Ni3X结构的有序沉淀相,是镍基高温合金最主要的强化相,其粗化行为显著影响着镍基高温合金的高温性能,因而近年来投入了大量的人力物力对γ'相粗化行为进行研究。由于实验二维视场的尺寸限制,对γ'相粗化行为的三维相场法研究发展迅速。在对相场法界面模型及其本质进行阐述的基础上,综述了近年来国内外对镍基高温合金γ'相粗化行为的三维相场法研究结果,并指出了材料科学家们通过实验方法对镍基高温合金进行三维研究的不懈努力,为进一步利用三维相场法研究γ'相粗化行为提供参考,以不断优化镍基高温合金实验参数,减少实验的重复,节约经费和时间。同时,展望了三维相场法研究镍基高温合金的研究方向。
Ni-based superalloys attracted wide attention in the aerospace field because of their excellent strength,toughness,fatigue performance,oxidation and thermal corrosion performance at high temperatures. γ＇ phase was an ordered phase with Ni3 X structure,which was the most important strengthening phase,and the high-temperature performance of Ni-based superalloys could be influenced by the coarsening of γ＇ phase significantly. Thus,a lot of manpower material resources were invested to study the coarsening behavior of γ＇ phase in recent years. Due to the limited size of two-dimensional（ 2D） experimental visible field,the investigation of γ＇ phase coarsening using three-dimensional（ 3D） phase field was developed rapidly. This paper reviewed the progress in three-dimensional phase field investigations of γ＇ phase coarsening in Ni-based superalloys based on an introduction of phase field interface model and its essence,and pointed out the material scientists＇ unremitting efforts in study on nickel-based superalloy with experimental method of3 D. In addition,the future study of γ＇ phase coarsening using three-dimensional phase field was prospected.
出处
《稀有金属》
EI
CAS
CSCD
北大核心
2016年第3期287-294,共8页
Chinese Journal of Rare Metals
基金
国家自然科学基金项目(51571122)
中央高校基本科研业务费项目(30920130121012)
江苏省自然科学基金项目(BK2011710)
江苏省研究生创新计划项目(SJLX_0157)资助
关键词
γ'相粗化
镍基高温合金
三维相场法
研究进展
γ＇ phase coarsening
Ni-based superalloys
three-dimensional phase field
research achievements
