摘要
采用径迹显微照相技术(PTA)研究了硼在Fe-30wt％Ni奥氏体合金中的分布。结果表明,该合金在650～950℃之间保温急冷时,存在着硼的晶界平衡偏聚,而在1050℃以上保温急冷时没有硼的偏聚。
By means of Path Tracing Analysis(PTA), the distribution of boron in an austenitic alloy Fe-30wt%Ni containing boron is studied.It is found that there is equilibrium segregation of Bat the grain boundary upon rapid cooling of the alloy whose tempefature has been held between 650 and 950℃ for some time; no boron segregation occurs when the temperature is held above 1050℃.
关键词
合金
硼
偏聚
晶界平衡
segregation of boron
equilibrium segregation
image analysis
