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试验研究了DQ 50钢显微组织对硬度的影响,以及该钢在不同冷速下得到的显微组织。研究得出该钢适宜的冷速应选为10～60℃/min。
The effect of the microstructure of DQ 50 steel on the hardness and the microstructure of the steel obtained at different cooling rates were investigated experimentally. The study concluded that the steel should be suitable for the cooling rate of 10 ~ 60 ℃ / min.