摘要
本文提出了一种确定晶界非平衡偏聚的临界时间和临界冷却速度的新方法。通过径迹显微照相(PTA),确定出含硼的Fe-30wt％Ni奥氏体合金中硼的晶界非平衡偏聚在不同温度下的临界时间t_0和从不同温度冷却时的临界冷却速度Q_c。
A new method is proposed for the determination of the critical time,the critical cooling rate of segregation of solute atoms at the grain boundaries.By Path Tracing Analysis(PTA)t_c,the critical time;θ_c,the critical cooling rate,for the non-equilibrium segregation amount of boron in an austenitic alloy Fe-30％ by weight plus Ni is determined.
关键词
晶界偏聚
临界时间
临界冷却速度
non-eqilibrium segregation
critical time
critical cooling rate
