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本文通过对30CrNi_4M_0A钢一系列的退火工艺试验研究,表明该钢奥氏体稳定性强,要想达到降低硬度的目的,必须采用高温回火并长时间保温的工艺。
In this paper, a series of 30CrNi_4M_0A annealed steel experiments show that the austenitic steel with strong stability, in order to achieve the purpose of reducing the hardness, you must use high temperature tempering and long-term heat preservation process.