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研究了稀土元素钕和混合稀土金属对60Si_2Mn钢相变动力学的影响,发现添加大于0.5%的稀土对钢的AC_3点、淬透性及过冷奥氏体等温转变曲线的贝茵体区均有明显影响,其中尤以钕的作用更为突出。少量添加时影响不大,淬透性稍有下降。
The effects of rare earth elements neodymium and mixed rare earth metals on the phase transformation kinetics of 60Si_2Mn steel were investigated. It was found that the addition of more than 0.5% of rare earth elements had a significant effect on the AC_3 point, the hardenability and the isothermal transformation curve of supercooled austenite Significant effect, especially in the role of neodymium more prominent. Little effect when adding a little hardenability decreased slightly.