V,Ti对微合金钢晶粒粗化温度的影响

Effects of V, Ti Elements on Grain Coarsening Temperature of A Microalloyed Steel

本文利用定量金相和电镜等方法研究了C-Mn,V-N,Ti-N和V-Ti-N四种钢的晶粒粗化行为,结果表明:V-N,Ti-N和V-Ti-N 3种钢中都存在大量的第二相粒子,其晶粒长大的进程既与第二相颗粒的大小分布有关,又与第二相颗粒的稳定性有关.

The grain coarsening behavior of C-Mn, V-N, Ti-N and V-Ti-N steels are investigated by quantitative metallogra phic and electron microscope technique. The result shows that there are a lot of precipitates in the V-N, Ti-N, and V-Ti-N steeds whose grain coarsening behavior depends on the size, distribution and stability of precipitates.